Publikationen 2024 - 2008
[1] H. K. Siddiqui, A. I. Waidha, S. Kanbach, J. P. Palakkal, S. Yadav, P. Kleinschmidt, J. J. Schneider, O. Clemens, L. Alff, U. I. Kramm*
Influence of B-site variation on the bifunctional performance of LaFexCo1-xO3 for Znair battery
Electrochimica Acta, accepted, 2024.
DOI will be available soon
[2] M. Botros*, J. Gonzalez‐Julian, T. Scherer, R. Popescu, C. Loho, A. Kilmametov, O. Clemens, H. Hahn
Influence of Grain Size on the Electrochemical Performance of Li7‐3xLa3Zr2AlxO12 Solid Electrolyte
Batteries & Supercaps, accepted, 2024.
http://dx.doi.org/10.1002/batt.202300370
[1] H. Yilmaz, K. Küster, U. Starke, O. Clemens, M. Isobe, P. Puphal*
Realization of a classical Ruddlesden Popper type bilayer nickelate in Sr3Ni2−xAlxO7−δ with unusual Ni4+
http://dx.doi.org/10.48550/arXiv.2406.12453
[2] S. L. Kunz, M. Häfner, O. Clemens*
“Hexagonal” Perovskites – From Stacking Notation to Space Group Symmetry and New Opportunities
[112] K. Wissel*, A. Haben, K. Küster, U. Starke, R. Kautenburger, W. Ensinger, O. Clemens
Direct Recycling of β‐Li3PS4‐Based All‐Solid‐State Li‐Ion Batteries: Interactions of Electrode Materials and Electrolyte in a Dissolution‐Based Separation Process
Advanced Energy and Sustainability Research, 5, 7, 202300280, 2024.
http://dx.doi.org/10.1002/aesr.202300280
[111] V. Vanita, A. I. Waidha, S. Vasala, P. Puphal, R. Schoch, P. Glatzel, M. Bauer, O. Clemens*
Insights into the first multi-transition-metal containing Ruddlesden–Popper-type cathode for all-solid-state fluoride ion batteries
Journal of Materials Chemistry A, 12, 15, 8769-8784, 2024.
http://dx.doi.org/10.1039/d4ta00704b
[110] F. N. I. Sari, Y. C. Lai, Y. J. Huang, X. Y. Wei, H. Pourzolfaghar, Y. H. Chang, M. Ghufron, Y. Y. Li, Y. H. Su, O. Clemens, J. M. Ting*
Electronic Structure Engineering in NiFe Sulfide via A Third Metal Doping as Efficient Bifunctional OER/ORR Electrocatalyst for Rechargeable Zinc‐Air Battery
Advanced Functional Materials, 34, 21, 2310181, 2024.
http://dx.doi.org/10.1002/adfm.202310181
[109] H. Chen, T. Aalto, V. Vanita, O. Clemens*
Effect of Uniaxial Stack Pressure on the Performance of Nanocrystalline Electrolytes and Electrode Composites for All‐Solid‐State Fluoride‐Ion Batteries
Small Structures, 5, 7, 2300570, 2024.
http://dx.doi.org/10.1002/sstr.202300570
[108] M. Jacob; K. Wissel; O. Clemens*
Recycling of solid-state batteries—challenge and opportunity for a circular economy?
Materials Futures, 3, 1, 012101, 2024
[107] M. Widenmeyer*; J. Häcker; C. Bubeck; S. Yoon; O. Clemens; A. Weidenkaff
Sequential double anionic substitution through synthesis of perovskite-type AB(O,N,F)3 with A = Ca, Sr, Ba and B = Ti, Zr
Solid State Sciences, 146, 107376, 2023
http://dx.doi.org/10.1016/j.solidstatesciences.2023.107376
[106] A. Klein*; K. Albe; N. Bein; O. Clemens; K. A. Creutz; P. Erhart; M. Frericks; E. Ghorbani; J. P. Hofmann; B. X. Huang; B. Kaiser; U. Kolb; J. Koruza; C. Kübel; K. N. S. Lohaus; J. Rödel; J. Rohrer; W. Rheinheimer; R. A. Souza; V. Streibel; A. Weidenkaff; M. Widenmeyer; B. X. Xu; H. B. Zhang
The Fermi energy as common parameter to describe charge compensation mechanisms: A path to Fermi level engineering of oxide electroceramics
- Electroceram., 51, 147-177, 2023
http://dx.doi.org/10.1007/s10832-023-00324-y
[105] K. Wissel*; L. M. Riegger; C. Schneider; A. I. Waidha; T. Famprikis; Y. Ikeda; B. Grabowski; R. E. Dinnebier; B. V. Lotsch; J. Janek; W. Ensinger; O. Clemens
Dissolution and Recrystallization Behavior of Li3PS4 in Different Organic Solvents with a Focus on N-Methylformamide
ACS Appl. Energy Mater., 6, (15), 7790-7802, 2023
http://dx.doi.org/10.1021/acsaem.2c03278
[104] A. I. Waidha*; A. Salihovic; M. Jacob; V. Vanita; B. Aktekin; K. Brix; K. Wissel; R. Kautenburger; J. Janek; W. Ensinger; O. Clemens
Recycling of All-Solid-State Li-ion Batteries: A Case Study of the Separation of Individual Components Within a System Composed of LTO, LLZTO and NMC
ChemSusChem, 16, (13), e202202361, 2023
http://dx.doi.org/10.1002/cssc.202202361
[103] D. McTaggart; S. C. Warren; O. Clemens*
Reconsidering Anode Materials for Fluoride-Ion Batteries-The Unexpected Roles of Carbide Formation
ChemSusChem, 16, (18), e202300486, 2023
http://dx.doi.org/10.1002/cssc.202300486
[102] V. Vanita; A. I. Waidha; S. Yadav; J. J. Schneider; O. Clemens*
Conductivity enhancement within garnet‐rich polymer composite electrolytes via the addition of succinonitrile
International Journal of Applied Ceramic Technology, 20, (1), 236-250, 2023
http://dx.doi.org/10.1111/ijac.14184
[101] T. X. Nguyen; K.-H. Yang; Y.-J. Huang; Y.-H. Su; O. Clemens; R.-K. Xie; Y.-J. Lin; J.-F. Lee; J.-M. Ting*
Anodic oxidation-accelerated self-reconstruction of tri-metallic Prussian blue analogue toward robust oxygen evolution reaction performance
Chem. Eng. J., 474, 2023
http://dx.doi.org/10.1016/j.cej.2023.145831
[100] T. X. Nguyen; J. Patra; C. C. Tsai; W. Y. Xuan; H. Y. T. Chen; M. S. Dyer; O. Clemens; J. Li; S. B. Majumder; J. K. Chang; J. M. Ting*
Secondary-Phase-Induced Charge-Discharge Performance Enhancement of Co-Free High Entropy Spinel Oxide Electrodes for Li-Ion Batteries
Adv. Funct. Mater., 33, (30), 2023
[99] Y. Ou; Y. Ikeda; O. Clemens; B. Grabowski*
Dynamic stabilization of perovskites at elevated temperatures: A comparison between cubic BaFeO3 and vacancy-ordered monoclinic BaFeO2.67
Physical Review B, 106, 6, 064308, 2022
http://dx.doi.org/10.1103/PhysRevB.106.064308
[98] M. Donzelli; T. Ferber; V. Vanita; A. I. Waidha; P. Müller; M. Mellin; R. Hausbrand; W. Jaegermann; O. Clemens*
On the surface modification of LLZTO with LiF via a gas-phase approach and the characterization of the interfaces of LiF with LLZTO as well as PEO+LiTFSI
Materials, accepted, 2022
http://dx.doi.org/10.3390/ma15196900
[97] K. Wissel; F. Bernardini; H. Oh; S. Vasala; R. Schoch; B. Blaschkowski; P. Glatzel; M. Bauer; O. Clemens*; A. Cano*
Single-Layer T'; Nickelates: Synthesis of the La and Pr Members and Electronic Properties across the Rare-Earth Series
Chemistry of Materials, accepted, 2022.
http://dx.doi.org/10.1021/acs.chemmater.2c00726
[96.] X. Xiao; M. Widenmeyer; M. Mellin; A. I. Waidha; O. Clemens; A. Weidenkaff; W. Xie*
Synergistic effects of Eu and Nb dual substitution on improving the thermoelectric performance of the natural perovskite CaTiO3
Materials Today Physics, 26, 100741, 2022.
http://dx.doi.org/10.1016/j.mtphys.2022.100741
[95] M. M. Byranvand; T. Kodalle; W. Zuo; T. M. Friedlmeier; M. Abdelsamie; K. Hong; S. Perween; O. Clemens; C. M. Sutter-Fella; M. Saliba*
One-step thermal gradient-, antisolvent-free crystallization of all-inorganic perovskites for stable solar cells at 300 °C
Advanced Science, 9, 23, e2202441, 2022.
http://dx.doi.org/10.1002/advs.202202441
[94] M. A. Nowroozi*, A. I. Waidha, M. Jacob, P. A. van Aken, F. Predel, W. Ensinger, O. Clemens
Towards Recycling of LLZO solid-electrolyte exemplarily performed on LFP/LLZO/LTO cells
Chemistry Open, 11, 3, e202100274, 2022.
http://dx.doi.org/10.1002/open.202100274
[93] J. Patra, T. X. Nguyen, C. C. Tsai, O. Clemens, J. Li, P. Pal, W. K. Chan, C. H. Lee, H. Y. T. Chen, J. M. Ting, J. K. Chang
Effects of Elemental Modulation on Phase Purity and Electrochemical Properties of Co‐free High‐Entropy Spinel Oxide Anodes for Lithium‐Ion Batteries
Advanced Functional Materials, 2110992, 2022.
http://dx.doi.org/10.1002/adfm.202110992
[92] M. Rumpel, F. Nagler, L. Appold, W. Stracke, A. Flegler, O. Clemens, G. Sextl*
Thermal stabilities of Mn-based active materials in combination with the ceramic electrolyte LATP for ASSB bulk cathodes
Materials Advances, 3, 9, 4015-4025, 2022.
http://dx.doi.org/10.1039/d2ma00158f
[91] S. Kesari; A. B. Garg; O. Clemens; B. Joseph; R. Rao*
Pressure Induced Structural Instability of Orthorhombic Mn3(VO4)2: Raman Spectroscopic and XRD Investigations
ACS Omega, 7, 3, 3099-3108, 2022
http://dx.doi.org/N10.1021/acsomega.1c06590
[90] A. Sarkar*; B. Eggert; R. Witte; J. Lill; L. Velasco; Q. Wang; J. Sonar; K. Ollefs; S. S. Bhattacharya; R. A. Brand; H. Wende; F. M. F. de Groot; O. Clemens; H. Hahn; R. Kruk
Comprehensive investigation of crystallographic, spin-electronic and magnetic structure of (Co0.2Cr0.2Fe0.2Mn0.2Ni0.2)3O4: Unraveling the suppression of configuration entropy in high entropy oxides
Acta Materialia, 226, 117581, 2022
http://dx.doi.org/10.1016/j.actamat.2021.117581
[89] T. Xuyen Nguyen; C.-C. Tsai; J. Patra; O. Clemens; J.-K. Chang; J.-M. Ting
Co-free high entropy spinel oxide anode with controlled morphology and crystallinity for outstanding charge/discharge performance in Lithium-ion batteries
Chemical Engineering Journal, 430, 132658, 2021
http://dx.doi.org/10.1016/j.cej.2021.132658
[88] T. Famprikis; H. Bouyanfif; P. Canepa; M. Zbiri; J. A. Dawson; E. Suard; F. Fauth; H. Y. Playford; D. Dambournet; O. J. Borkiewicz; M. Courty; O. Clemens; J. N. Chotard; M. S. Islam; C. Masquelier*
Insights into the Rich Polymorphism of the Na(+) Ion Conductor Na3PS4 from the Perspective of Variable-Temperature Diffraction and Spectroscopy
Chem Mater, 33, (14), 5652-5667, 2021
http://dx.doi.org/10.1021/acs.chemmater.1c01113
[87] C.-Y. Huang; C.-W. Huang; M.-C. Wu; J. Patra; T. Xuyen Nguyen; M.-T. Chang; O. Clemens; J.-M. Ting; J. Li; J.-K. Chang; W.-W. Wu
Atomic-scale investigation of Lithiation/Delithiation mechanism in High-entropy spinel oxide with superior electrochemical performance
Chemical Engineering Journal, 420, 129838, 2021
http://dx.doi.org/10.1016/j.cej.2021.129838
[86] S. Kesari; A. B. Garg; O. Clemens; R. Rao*
Compression effect on structure of the Li-stabilized high-temperature phase of Mn3(VO4)2 with composition Li0.2Mn2.9(VO4)2 - Raman spectroscopic and X-ray diffraction investigations
Journal of Alloys and Compounds, 870, 159418, 2021
http://dx.doi.org/10.1016/j.jallcom.2021.159418
[85] S. Vasala; L. Alff; O. Clemens*
Tuning of superdiamagnetism in La2CuO4 by solid-state electrochemical fluorination and defluorination
APL Materials, 9, (4), 041107, 2021
http://dx.doi.org/10.1063/5.0040997
[84] A. I. Waidha; T. Ferber; M. Donzelli; N. Hosseinpourkahvaz; V. Vanita; K. Dirnberger; S. Ludwigs; R. Hausbrand; W. Jaegermann; O. Clemens*
Compositional Dependence of Li-Ion Conductivity in Garnet-Rich Composite Electrolytes for All-Solid-State Lithium-Ion Batteries-Toward Understanding the Drawbacks of Ceramic-Rich Composites
ACS Appl Mater Interfaces, 13, (26), 31111-31128, 2021
http://dx.doi.org/10.1021/acsami.1c05846
[83] A. I. Waidha; H. Khatoon Siddiqui; Y. Ikeda; M. Lepple; S. Vasala; M. Donzelli; A. D. Fortes; P. Slater; B. Grabowski; U. I. Kramm*; O. Clemens*
Structural, Magnetic and Catalytic Properties of a New Vacancy Ordered Perovskite Type Barium Cobaltate BaCoO2.67
Chemistry – A European Journal, 27, (38), 9763-9767, 2021
http://dx.doi.org/10.1002/chem.202101167
[82] A. I. Waidha; V. Vanita; O. Clemens*
PEO Infiltration of Porous Garnet-Type Lithium-Conducting Solid Electrolyte Thin Films
Ceramics, 4, (3), 421-436, 2021
http://dx.doi.org/10.3390/ceramics4030031
[81] S. Wollstadt; Y. Ikeda; A. Sarkar; S. Vasala; C. Fasel; L. Alff; R. Kruk; B. Grabowski; O. Clemens*
Structural and Magnetic Properties of BaFeO2.667 Synthesized by Oxidizing BaFeO2.5 Obtained via Nebulized Spray Pyrolysis
Inorg Chem, 60, (15), 10923-10933, 2021
http://dx.doi.org/10.1021/acs.inorgchem.1c00434
[80] A.-K. Fetzer; A. Wohninsland; K. Hofmann; O. Clemens; L. K. Venkataraman; H.-J. Kleebe*
Domain structure and phase evolution in quenched and furnace cooled lead-free Na1/2Bi1/2TiO3-BaTiO3 ceramics
Open Ceramics, 5, 100077, 2021
http://dx.doi.org/10.1016/j.oceram.2021.100077
[79] M. A. Nowroozi; I. Mohammad; P. Molaiyan; K. Wissel; A. R. Munnangi*; O. Clemens*
Fluoride Ion Batteries - Past, Present, and Future
Journal of Materials Chemistry A, 9, 10, 5980-6012, 2021
http://dx.doi.org/10.1039/D0TA11656D
[78] S. Wollstadt, R. de Souza, O. Clemens*
A kinetic study of the interdiffusion of fluorine and oxygen inside the perovskite type barium ferrate system BaFeO2.5-xF2x
Journal of Physical Chemistry C, 125, 4, 2287-2298, 2021
http://dx.doi.org/10.1021/acs.jpcc.0c10174
[77] K. Wissel, R. Schoch, T. Vogel, M. Donzelli, G. Matveeva, U. Kolb, M. Bauer, P. R. Slater, O. Clemens*
Electrochemical reduction and oxidation of Ruddlesden-Popper type La2NiO3F2 within Fluoride-Ion Batteries
Chemistry of Materials, 33, 2, 499-512, 2021
http://dx.doi.org/10.1021/acs.chemmater.0c01762
[76] C. Prössl, M. Kubler, M. A. Nowroozi, S. Paul, O. Clemens, U. I. Kramm*
Investigation of the thermal removal steps of capping agents in the synthesis of bimetallic iridium-based catalysts for the ethanol oxidation reaction
Phys Chem Chem Phys 23, 1, 563-573, 2021
http://dx.doi.org/10.1039/d0cp04900j
[75] S. Vasala, A. Jakob, K. Wissel, A. I. Waidha, L. Alff, O. Clemens*
Reversible Tuning of Magnetization in a Ferromagnetic Ruddlesden–Popper‐Type Manganite by Electrochemical Fluoride‐Ion Intercalation
Advanced Electronic Materials 6, 2, 1900974, 2020
http://dx.doi.org/10.1002/aelm.201900974
[74] A. I. Waidha, L. Ni, J. Ali, M. Lepple, S. Dasgupta, S. Wollstadt, L. Alff, U. I. Kramm*, O. Clemens*
Synthesis of bifunctional BaFe1-xCoxO3-y-δ(OH)y catalysts for the oxygen reduction reaction and oxygen evolution reaction
Journal of Materials Chemistry A 8, 616-625, 2020
http://dx.doi.org/10.1039/C9TA10222A
[73] K. Wissel, A. M. Malik, S. Vasala, S. Plana-Ruiz, U. Kolb, P. R. Slater, I. da Silva, L. Alff, J. Rohrer, O. Clemens*
Topochemical reduction of La2NiO3F2: the first Ni-based Ruddlesden-Popper n = 1 T’-type structure and the impact of reduction on magnetic ordering
Chemistry of Materials 32, 7, 3160-3179, 2020
http://dx.doi.org/10.1021/acs.chemmater.0c00193
[72] K. Wissel, T. Vogel, S. Dasgupta, A. D. Fortes, P. R. Slater, O. Clemens*
Topochemical Fluorination of n = 2 Ruddlesden-Popper Type Sr3Ti2O7 to Sr3Ti2O5F4 and Its Reductive Defluorination
Inorganic Chemistry 59, 2, 1153-1163, 2020
http://dx.doi.org/10.1021/acs.inorgchem.9b02783
[71] S. Wollstadt, O. Clemens*
On the Impact of the Degree of Fluorination on the ORR Limiting Processes within Iron Based Catalysts: A Model Study on Symmetrical Films of Barium Ferrate
Materials 13, 11, 2532, 2020
http://dx.doi.org/10.3390/ma13112532
[70] M. A. Nowroozi, K. Wissel, M. Donzelli, N. Hosseinpourkahvaz, S. Plana-Ruiz, U. Kolb, R. Schoch, M. Bauer, A. M. Malik, J. Rohrer, S. Ivlev, F. Kraus, O. Clemens*
High cycle life all-solid-state fluoride ion battery with La2NiO4+d high voltage cathode
Communications Materials 1, 1, 27, 2020
http://dx.doi.org/10.1038/s43246-020-0030-5
[69] E. Ahiavi, J. A. Dawson, U. Kudu, M. Courty, M. S. Islam, O. Clemens, C. Masquelier, T. Famprikis*
Mechanochemical synthesis and ion transport properties of Na3OX (X = Cl, Br, I and BH4) antiperovskite solid electrolytes
Journal of Power Sources 471, 228489, 2020
http://dx.doi.org/10.1016/j.jpowsour.2020.228489
[68] A. Jarvis, F. J. Berry, J. F. Marco, M. Sanchez-Arenillas, G. Cibin, O. Clemens, P. R. Slater*
Synthesis and characterisation of Sr4Fe3-xCrxO10-δ: Stabilisation of n=3 Ruddlesden-Popper phases through Cr doping
Journal of Solid State Chemistry 287, 121372, 2020
http://dx.doi.org/10.1016/j.jssc.2020.121372
[67] C. Mortan, T. Hellmann, M. Buchhorn, M. D. Melzi, O. Clemens, T. Mayer, W. Jaegermann*
Preparation of methylammonium lead iodide (CH3NH3PbI3) thin film perovskite solar cells by chemical vapor deposition using methylamine gas (CH3NH2) and hydrogen iodide gas
Energy Science & Engineering 8, 9, 2020
http://dx.doi.org/10.1002/ese3.734
[66] P. Ren, Y. Wang, A. I. Waidha, O. Clemens, Lalitha K. V*
Compositionally driven relaxor to ferroelectric crossover in (1 − x)Na0.5Bi0.5TiO3–xBiFeO3 (0 ≤ x ≤ 0.60)
Journal of Materials Chemistry C 8, 25, 8613-8621, 2020
http://dx.doi.org/10.1039/d0tc01096k
[65] S. P. Singh*, R. Witte, O. Clemens, A. Sarkar, L. Velasco, R. Kruk, H. Hahn
Magnetic Tb75Fe25 Nanoglass for Cryogenic Permanent Magnet Undulator
ACS Applied Nano Materials 3, 7, 7281-7290, 2020
http://dx.doi.org/10.1021/acsanm.0c01674
[64] T. Stohr, A. Fischer, F. Muench, M. Antoni, S. Wollstadt, C. Lohaus, U. Kunz, O. Clemens, A. Klein, W. Ensinger*
Electroless Nanoplating of Pd−Pt Alloy Nanotube Networks: Catalysts with Full Compositional Control for the Methanol Oxidation Reaction
ChemElectroChem 7, 3, 855-864, 2020
[63] T. Famprikis, J. A. Dawson, F. Fauth, O. Clemens, E. Suard, B. Fleutot, M. Courty, J.-N. Chotard, M. S. Islam, C. Masquelier*
A new plastic polymorph of the Na+ conductor Na3PS4
ACS Materials Letters 1, 6, 641-646, 2019
http://dx.doi.org/10.1021/acsmaterialslett.9b00322
[62] A. Nair, S. Wollstadt, R. Witte, S. Dasgupta, P. Kehne, L. Alff, P. Komissinskiy*, O. Clemens*
Synthesis and Characterisation of fluorinated epitaxial films of BaFeO2F: Introducing magnetic isotropy via a lowering of epitaxial strain
RSC Advances 9, 64, 37136-37143, 2019
http://dx.doi.org/10.1039/C9RA08039B
[61] M. Botros*, T. Scherer, R. Popescu, A. Kilametov, O. Clemens, H. Hahn
Microstrain and electrochemical performance of garnet solid electrolyte integrated in a hybrid battery cell
RSC Advances 9, 53, 31102-31114, 2019
http://dx.doi.org/10.1039/c9ra07091e
[60] T. Famprikis; J. Galipaud; O. Clemens; B. Pecquenard; F. Le Cras*
Composition dependence of ionic conductivity in LiSiPO(N) thin-film electrolytes for solid-state batteries
ACS Applied Energy Materials 2, 7 4782-4791, 2019
http://dx.doi.org/10.1021/acsaem.9b00415
[59] C. Mortan; O. Clemens; T. Mayer; W. Jaegermann*
XPS and XRD Characterization of Methylammonium Tin Iodide (CH3NH3SnI3) Perovskite Thin Films produced via Flash Evaporation for Application in Solar Cell Devices
physica status solidi (a) 216, 18, 1900209, 2019
http://dx.doi.org/10.1002/pssa.201900209
[58] R. Dachauer; O. Clemens; K. Lakus-Wollny; T. Mayer; W. Jaegermann*
Characterization of CH3NH3PbI3 Thin Films Fabricated by Exposure of PbI2 Layers to MAI Vapor in a Closed Crucible Transformation Process
physica status solidi (a) 216, 11, 1800894, 2019
http://dx.doi.org/10.1002/pssa.201800894
[57] Holger Euchner, O. Clemens, M. Anji Reddy*
Unlocking the Potential of Weberite-type Metal Fluorides in Electrochemical Energy Storage
npj Computational Materials 5, 1, 31, 2019
http://dx.doi.org/10.1038/s41524-019-0166-3
[56] A. I. Waidha, H. Zhang, M. Lepple, S. Dasgupta, L. Alff, P. R. Slater, A. D. Fortes, O. Clemens*
BaCoO2+δ: A new highly oxygen deficient perovskite phase with unusual Co coordination obtained by high temperature reaction with short reaction times
Chemical Communications 47, 32, 11136-11139, 2018
http://dx.doi.org/10.1039/c8dt01326h
[55] M. A. Nowroozi, O. Clemens*
Insights on the Behavior of Conversion Based Anode Materials for Fluoride Ion Batteries by Testing Against an Intercalation-Based Reference Cathode
ACS Applied Energy Materials, 1, 6626-6637, 2018
http://dx.doi.org/10.1021/acsaem.8b01630
[54] A. Shahrei, M. Kuebler, I. Martinaiou, K. A. Creutz, M. A. Nowroozi, S. Paul, N. Weidler, R. W. Stark, O. Clemens, U. I. Kramm*
On the role of hydroxide species in sulphur- and nitrogen-doped cobalt-based carbon catalysts for the oxygen evolution reaction
Journal of Materials Chemistry A 6, 44, 22310-22319, 2018
http://dx.doi.org/10.1039/c8ta05769a
[53] P. A. Sukkurji, A. Molinari, C. Reitz, R. Witte, C. Kübel, V. S. K. Chakravadhanula, R. Kruk, O. Clemens*
Anion Doping of Ferromagnetic Thin Films of La0.74Sr0.26MnO3-d via Topochemical Fluorination
Materials, 11, 1204, 2018
http://dx.doi.org/10.3390/ma11071204
[52] M. A. Nowroozi, B. P. de Laune, O. Clemens*
Reversible Electrochemical Intercalation / Deintercalation of Fluoride Ions into Host Lattices with Schafarzikite Type Structure
Chemistry Open, 7, 617-623, 2018
http://dx.doi.org/10.1002/open.201800106
[51] A. I. Waidha, M. Lepple, K. Wissel, S. Wollstadt, A. Benes, P. R. Slater, D. A. Fortes, O. Clemens*
Synthesis, structure and electrical conductivity of a new perovskite type barium cobaltate BaCoO1.80(OH)0.86
Dalton Transactions, 47, 11136-11145, 2018
http://dx.doi.org/10.1039/C8DT01326H
[50] A. Shahrei, I. Marinaiou, K. A. Creutz, M. Kübler, N. Weidler, S. Ranecky, W. C. D. Wallace, M. A. Nowroozi, O. Clemens, R. W. Stark, U. I. Kramm*
Exploring Active Sites in Multi-heteroatom Doped Co-based Catalysts for Hydrogen Evolution Reaction.
Chemistry – A European Journal, 24, 12480-12484, 2018
http://dx.doi.org/10.1002/chem.201802684
[49] K. Wissel, S. Dasgupta, A. Benes, R. Schoch, M. Bauer, R. Witte, A. D. Fortes, J. Rohrer, O. Clemens*
Developing intercalation based anode materials for fluoride-ion batteries: Topochemical reduction of Sr2TiO3F2 via a hydride based defluorination process
Journal of Materials Chemistry A 6, 44, 22013-22026, 2018 (Emerging Investigators Edition)
http://dx.doi.org/10.1039/C8TA01012A
[48] K. Wissel, J. Heldt, P. B. Groszewics, S. Dasgupta, H. Breitzke, M. Donzelli, A. I. Waidha, A. D. Fortes, J. Rohrer, P. R. Slater, G. Buntkowsky, O. Clemens*
Topochemical Fluorination of La2NiO4+d: Unprecedented ordering of oxide and fluoride ions in La2NiO3F2
Inorganic Chemistry, 57, 6549-6560, 2018
http://dx.doi.org/10.1021/acs.inorgchem.8b00661
[47] M. A. Reddy*, H. Euchner, R. Witter, O. Clemens
Structure and Electrochemical Properties of Na2±xV3P2O13 (x = 0 and 1): A Promising Cathode Material for Sodium-Ion Batteries
Journal of Materials Chemistry A, 6, 6947-6958, 2018
http://dx.doi.org/10.1039/C8TA00588E
[46] C. Wittich*, E. Mankel, O. Clemens, K. Lakus-Wollny, T. Mayer, W. Jaegermann, H.-J. Kleebe
Structural and Compositional Characteristics of Vacuum Deposited Methylammonium Lead Halide Perovskite Layers in Dependence on Background Pressure and Substrate Temperature
Thin Solid Films, 650, 51-57, 2018
http://dx.doi.org/10.1016/j.tsf.2018.02.004
[45] M. A. Nowroozi, S. Ivlev, J. Rohrer, O. Clemens*
La2CoO4: A New Intercalation Based Cathode Material for Fluoride Ion Batteries with Improved Cycling Stability
Journal of Materials Chemistry A, 6, 4658-4669, 2018 (highlighted as back cover)
http://dx.doi.org/10.1039/C7TA09427B
[44] A. Benes, A. Molinari, R. Witte, R. Kruk, J. Brötz, R. Chellali, H. Hahn, O. Clemens*
Proton conduction in grain-boundary free oxygen-deficient BaFeO2.5+δ thin films
Materials 11, 1, 52, 2018
http://dx.doi.org/10.3390/ma11010052
[43] A. Sarkar*, R. Djenadic, D. Wang, C. Hein, R. Kautenburger, O. Clemens*, H. Hahn*
Rare earth and transition metal based entropy stabilised perovskite type oxides
Journal of the European Ceramic Society, 38, 2318-2327, 2018
http://dx.doi.org/10.1016/j.jeurceramsoc.2017.12.058
[42] A. Philippe*, J. Kosik, A. Welle, J.-M. Guigner, O. Clemens, G. E. Schaumann
Extraction and characterization methods for titanium dioxide nanoparticles from commercialized sunscreens
Environmental Science: Nano 5, 191-202, 2018
[41] C. Loho*, R. Djenadic, P. Mundt, O. Clemens, H. Hahn
On processing-structure-property relations and high ionic conductivity in garnet-type Li5La3Ta2O12 solid electrolyte thin films grown by CO2-laser assisted CVD
Solid State Ionics 313, 32-44, 2017
http://dx.doi.org/10.1016/j.ssi.2017.11.005
[40] N. H. Khansur*, J. Glaum, O. Clemens, H. Zhang, J. E. Daniels, K. G. Webber
Uniaxial compressive stress and temperature dependent mechanical behavior of (1‑x)BiFeO3‑xBaTiO3 lead-free piezoelectric ceramics
Ceramics International 43, 12, 9092-9098, 2017
http://dx.doi.org/10.1016/j.ceramint.2017.04.055
[39] M. A. Nowroozi, K. Wissel, J. Rohrer, A. R. Munnangi, O. Clemens*
LaSrMnO4: Reversible Electrochemical Intercalation of Fluoride Ions in the Context of Fluoride Ion Batteries
Chemistry of Materials 29, 8, 3441-3453, 2017 (highlighted as front cover)
http://dx.doi.org/10.1021/acs.chemmater.6b05075
[38] J. E. Schultheiß*, O. Clemens, S. Zhukov, H. von Seggern, W. Sakamoto, J. Koruza
Effect of degree of crystallographic texture on ferro- and piezoelectric properties of Ba0.85Ca0.15TiO3 piezoceramics
Journal of the American Ceramic Society 100, 5, 2098-2107, 2017 (Edward C. Henry award 2018 of the American Ceramic Society)
http://dx.doi.org/10.1111/jace.14749
[37] P. A. Sukkurji, A. Molinari, A. Benes, C. Loho, V. S. K. Chakravadhanula, S. K. Garlapati, R. Kruk, O. Clemens*
Structure and Conductivity of Epitaxial Thin Films of Barium Ferrite and its Hydrated Form BaFeO2.5‑x+d(OH)2x
Journal of Physics D: Applied Physics 50, 115302, 2017
http://dx.doi.org/10.1088/1361-6463/aa5718
[36] C. Loho*, R. Djenadic, M. Bruns, O. Clemens, H. Hahn
Garnet-type Li7La3Zr2O12 solid electrolyte thin films grown by novel CO2-laser assisted CVD for all-solid-state batteries
Journal of the Electrochemical Society 164, 1, A6131-A6139, 2017
http://dx.doi.org/10.1149/2.0201701jes
[35] P. T. Geiger, O. Clemens, N. H. Khansur, M. Hinterstein, M. G. Sahini, T. Grande, P. Tung, J. E. Daniels, K. G. Webber
Nonlinear mechanical behaviour of Ba0.5Sr0.5Co0.8Fe0.2O3-δ and in-situ stress dependent synchrotron x-ray diffraction study
Solid State Ionics 300, 106-113, 2017
http://dx.doi.org/10.1016/j.ssi.2016.11.027
[34] R. Djenadic*, A. Sarkar, M. Botros, O. Clemens, C. Loho, V. S. K. Chakravadhanula, C. Kübel, S. S. Bhattacharya, A. S. Gandhi, H. Hahn
Multicomponent Equiatomic Rare Earth Oxides
Materials Research Letters 5, 2, 102-109, 2017
2016
[33] P. L. Knoechel, P. J. Keenan, C. Loho, C. Reitz, R. Witte, K. S. Knight, A. J. Wright, H. Hahn, P. R. Slater, O. Clemens*
Synthesis, structural characterisation and proton conduction of two new hydrated phases of barium ferrite BaFeO2.5-x(OH)2x
Journal of Materials Chemistry A 4, 9, 3415-3430, 2016
http://dx.doi.org/10.1039/c5ta06383c
[32] M. A. Howard, O. Clemens, A. S. Parvathy, P. A. Anderson, P. R. Slater*
Synthesis and ionic conductivity of new high Li ion content garnets, LnSr2Ta2Li7O12 (Ln = La, Pr, Nd, Sm, Gd)
Journal of Alloys and Compounds 670, 78-84, 2016
http://dx.doi.org/10.1016/j.jallcom.2016.02.012
[31] P. Gao, M. A. Reddy, X. Mu, T. Diemant, L. Zhang, Z. Zhao-Karger, V. S. K. Chakravadhanula, O. Clemens, R. J. Behm, M. Fichtner*
VOCl as a Cathode for Rechargeable Chloride Ion Batteries
Angewandte Chemie-International Edition 55, 13, 4285-4290, 2016
http://dx.doi.org/10.1002/anie.201509564
[30] O. Clemens*, J. Rohrer, G. Nenert
Magnetic structures of the low temperature phase of Mn3(VO4)2 - towards understanding magnetic ordering between adjacent Kagome layers
Dalton Transactions 45, 1, 156-171, 2016
http://dx.doi.org/10.1039/c5dt03141a
[29] O. Clemens*, C. Reitz, R. Witte, R. Kruk, R. I. Smith
Anion Ordering, Magnetic Structure and Properties of Ba3Fe3O7F
Journal of Solid State Chemistry 243, 31-37, 2016
http://dx.doi.org/10.1016/j.jssc.2016.07.033
[28] O. Clemens, J. F. Marco, M. F. Thomas, S. D. Forder, H. Zhang, S. Cartenet, A. Monze, P. A. Bingham, P. R. Slater, F. J. Berry*
Magnetic interactions in cubic-, hexagonal- and trigonal-barium iron oxide fluoride, BaFeO2F
Journal of Physics-Condensed Matter 28, 34, 2016
http://dx.doi.org/10.1088/0953-8984/28/34/346001
[27] M. A. Cambaz, B. P. Vinayan, O. Clemens, A. R. Munnangi, V. S. K. Chakravadhanula, C. Kuebel, M. Fichtner*
Vanadium Oxyfluoride/Few-Layer Graphene Composite as a High-Performance Cathode Material for Lithium Batteries
Inorganic Chemistry 55, 8, 3789-3796, 2016
http://dx.doi.org/10.1021/acs.inorgchem.5b02687
[26] M. Botros*, R. Djenadic, O. Clemens, M. Moeller, H. Hahn
Field assisted sintering of fine-grained Li7‑3xLa3Zr2AlxO12 solid electrolyte and the influence of the microstructure on the electrochemical performance
Journal of Power Sources 309, 108-115, 2016
http://dx.doi.org/10.1016/j.jpowsour.2016.01.086
2015
[25] M. A. Howard, O. Clemens, P. R. Slater, P. A. Anderson*
Hydrogen absorption and lithium ion conductivity in Li6NBr3
Journal of Alloys and Compounds 645, S174-S177, 2015
http://dx.doi.org/10.1016/j.jallcom.2015.01.082
[24] O. Clemens*, F. J. Berry, A. J. Wright, K. S. Knight, J. M. Perez-Mato, J. M. Igartua, P. R. Slater
Reply to "Structural and magnetic behavior of the cubic oxyfluoride SrFeO2F studied by neutron diffraction"
Journal of Solid State Chemistry 226, 326-331, 2015
http://dx.doi.org/10.1016/j.jssc.2015.02.022
[23] O. Clemens*
Structural characterization of a new vacancy ordered perovskite modification found for Ba3Fe3O7F (BaFeO2.333F0.333): Towards understanding of vacancy ordering for different perovskite-type ferrites
Journal of Solid State Chemistry 225, 261-270, 2015
http://dx.doi.org/10.1016/j.jssc.2014.12.027
2014
[22] C. Loho*, A. J. Darbandi, R. Djenadic, O. Clemens, H. Hahn
CO2-Laser Flash Evaporation as Novel CVD Precursor Delivery System for Functional Thin Film Growth
Chemical Vapor Deposition 20, 4-6, 152-160, 2014 (highlighted as front cover)
http://dx.doi.org/10.1002/cvde.201307089
[21] R. Djenadic*, M. Botros, C. Benel, O. Clemens, S. Indris, A. Choudhary, T. Bergfeldt, H. Hahn
Nebulized spray pyrolysis of Al-doped Li7La3Zr2O12 solid electrolyte for battery applications
Solid State Ionics 263, 49-56, 2014
http://dx.doi.org/10.1016/j.ssi.2014.05.007
[20] O. Clemens*, C. Rongeat, M. A. Reddy, A. Giehr, M. Fichtner, H. Hahn
Electrochemical fluorination of perovskite type BaFeO2.5
Dalton Transactions 43, 42, 15771-15778, 2014
http://dx.doi.org/10.1039/c4dt02485k
[19] O. Clemens*, R. Kruk, E. A. Patterson, C. Loho, C. Reitz, A. J. Wright, K. S. Knight, H. Hahn, P. R. Slater
Introducing a Large Polar Tetragonal Distortion into Ba-Doped BiFeO3 by Low-Temperature Fluorination
Inorganic Chemistry 53, 23, 12572-12583, 2014
http://dx.doi.org/10.1021/ic502183t
[18] O. Clemens*, R. Haberkorn, M. Springborg, H. P. Beck
On Aliovalent Substitution on the Li Site in LiMPO4: an X-ray Diffraction Study of the Systems LiMPO4-M1.5PO4 (=LixM1.5-x/2PO4; M = Ni, Co, Fe, Mn)
Zeitschrift fuer Anorganische und Allgemeine Chemie 640, 1, 173-183, 2014
http://dx.doi.org/10.1002/zaac.201300376
[17] O. Clemens*, M. Groeting, R. Witte, J. Manuel Perez-Mato, C. Loho, F. J. Berry, R. Kruk, K. S. Knight, A. J. Wright, H. Hahn, P. R. Slater
Crystallographic and Magnetic Structure of the Perovskite-Type Compound BaFeO2.5: Unrivaled Complexity in Oxygen Vacancy Ordering
Inorganic Chemistry 53, 12, 5911-5921, 2014
http://dx.doi.org/10.1021/ic402988y
2013
[16] L. Truong, M. Howard, O. Clemens, K. S. Knight, P. R. Slater, V. Thangadurai*
Facile proton conduction in H+/Li+ ion-exchanged garnet-type fast Li-ion conducting Li5La3Nb2O12
Journal of Materials Chemistry A 1, 43, 13469-13475, 2013
http://dx.doi.org/10.1039/c3ta13005c
[15] M. A. Howard, O. Clemens, K. S. Knight, P. A. Anderson, S. Hafiz, P. M. Panchmatia, P. R. Slater*
Synthesis, conductivity and structural aspects of Nd3Zr2Li7-3xAlxO12
Journal of Materials Chemistry A 1, 44, 14013-14022, 2013
http://dx.doi.org/10.1039/c3ta13252h
[14] O. Clemens*, A. J. Wright, K. S. Knight, P. R. Slater
On the soft magnetic properties of the compounds of the series NaxMn4.5-x/2(VO4)3 and the magnetic structure of h.t.-Mn3(VO4)2 (x=1)
Dalton Transactions 42, 22, 7894-7900, 2013
http://dx.doi.org/10.1039/c3dt32974g
[13] O. Clemens*, A. J. Wright, F. J. Berry, R. I. Smith, P. R. Slater
Synthesis, structural and magnetic characterisation of the fully fluorinated compound 6H-BaFeO2F
Journal of Solid State Chemistry 198, 262-269, 2013
http://dx.doi.org/10.1016/j.jssc.2012.10.017
[12] O. Clemens*, P. R. Slater
Topochemical modifications of mixed metal oxide compounds by low-temperature fluorination routes
Reviews in Inorganic Chemistry 33, 2-3, 105-117, 2013
http://dx.doi.org/10.1515/revic-2013-0002
[11] O. Clemens*, F. J. Berry, A. J. Wright, K. S. Knight, J. M. Perez-Mato, J. M. Igartua, P. R. Slater
A neutron diffraction study and mode analysis of compounds of the system La1‑xSrxFeO3-xFx (x=1, 0.8, 0.5, 0.2) and an investigation of their magnetic properties
Journal of Solid State Chemistry 206, 158-169, 2013
http://dx.doi.org/10.1016/j.jssc.2013.08.013
[10] O. Clemens*, F. J. Berry, J. Bauer, A. J. Wright, K. S. Knight, P. R. Slater
Synthesis, structural and magnetic characterisation of the fluorinated compound 15R-BaFeO2F
Journal of Solid State Chemistry 203, 218-226, 2013
http://dx.doi.org/10.1016/j.jssc.2013.04.031
2012
[9] M. A. Howard, O. Clemens, E. Kendrick, K. S. Knight, D. C. Apperley, P. A. Anderson, P. R. Slater*
Effect of Ga incorporation on the structure and Li ion conductivity of La3Zr2Li7O12
Dalton Transactions 41, 39, 12048-12053, 2012
http://dx.doi.org/10.1039/c2dt31318a
[8] O. Clemens, R. Haberkorn, M. Springborg, H. P. Beck*
Neutron and X-ray diffraction studies on the high temperature phase of Mn3(VO4)2, the new isostructural compound NaMn4(VO4)3 and their mixed crystals NaxMn4.5-x/2(VO4)3 (0 <= x <= 1)
Journal of Solid State Chemistry 194, 409-415, 2012
http://dx.doi.org/10.1016/j.jssc.2012.06.003
[7] O. Clemens, R. Haberkorn, H. Kohlmann, M. Springborg, H. P. Beck*
Synthesis and Characterization of the New Mixed Valent Compound Mn5VO8
Zeitschrift fuer Anorganische und Allgemeine Chemie 638, 7-8, 1134-1140, 2012
http://dx.doi.org/10.1002/zaac.201200021
[6] O. Clemens, M. Bauer, R. Haberkorn, M. Springborg, H. P. Beck*
Synthesis and Characterization of Vanadium-Doped LiMnPO4-Compounds: LiMn(PO4)x(VO4)1-x (0.8 <= x <= 1.0)
Chemistry of Materials 24, 24, 4717-4724, 2012
http://dx.doi.org/10.1021/cm303005d
2011
[5] O. Clemens*, M. Kuhn, R. Haberkorn
Synthesis and characterization of the La1‑xSrxFeO3-delta system and the fluorinated phases La1-xSrxFeO3-xFx
Journal of Solid State Chemistry 184, 11, 2870-2876, 2011
http://dx.doi.org/10.1016/j.jssc.2011.08.037
[4] O. Clemens, R. Haberkorn, H. P. Beck*
New phases in the system LiMnVO4-Mn3(VO4)2
Journal of Solid State Chemistry 184, 10, 2640-2647, 2011
http://dx.doi.org/10.1016/j.jssc.2011.07.042
[3] O. Clemens, M. Bauer, R. Haberkorn, H. P. Beck*
On the Existence of LiFeVO4 - Tales and Imagination
Zeitschrift fuer Anorganische und Allgemeine Chemie 637, 7-8, 1036-1044, 2011
http://dx.doi.org/10.1002/zaac.201100037
2010
[2] O. Clemens, R. Haberkorn, P. R. Slater, H. P. Beck*
Synthesis and characterisation of the SrxBa1‑xFeO3-y-system and the fluorinated phases SrxBa1-xFeO2F
Solid State Sciences 12, 8, 1455-1463, 2010
http://dx.doi.org/10.1016/j.solidstatesciences.2010.06.002
2008
[1] O. Clemens, M. Basters, M. Wild, S. Wilbrand, C. Reichert, M. Bauer, M. Springborg, G. Jung*
Solvent effects on the absorption/emission spectra of an organic chromophore: A theoretical study
Journal of Molecular Structure-Theochem 866, 1-3, 15-20, 2008
[g] O. Clemens
Rezension: Marie Curie ‐ Ein Licht im Dunkeln. Buch von Frances A. Osterfelt u.a.
Nachrichten aus der Chemie 68, 6, 70-70, 2020
http://dx.doi.org/10.1002/nadc.20204099698
[f] N. Kunkel, O. Clemens
Daten speichern im Kristallgitter
Nachrichten aus der Chemie 67, 12, 47-50, 2019
http://dx.doi.org/10.1002/nadc.20194090189 [e] O. Clemens, N. Kunkel
Ordnung in der Ordnung
Nachrichten aus der Chemie 67, 10, 62-66, 2019
http://dx.doi.org/10.1002/nadc.20194090183
[d] O. Clemens, N. Kunkel, M. Suta
Sieh mal, seltene Erden
Nachrichten aus der Chemie 67, 7-8, 71-75, 2019
http://dx.doi.org/10.1002/nadc.20194089019
[c] O. Clemens, N. Kunkel
Strukturen, Zusammensetzung, Mechanismen
Nachrichten aus der Chemie 67, 6, 66-69, 2019
http://dx.doi.org/10.1002/nadc.20194083930
[b] O. Clemens, N. Kunkel
Mit dem richtigen Dreh die Thermodynamik überlisten
Nachrichten aus der Chemie 67, 2, 59-62, 2019
http://dx.doi.org/10.1002/nadc.20194083930
[a] O. Clemens, J. Heine, G. Heymann, K.-S. Mandel
Festkörperchemie
Nachrichten aus der Chemie 67, 2, 40-51, 2019