Showing 101 - 150 of 351 Results

  • Schwab, Christian; Höweling, A.; Windmüller, A.; Gonzalez-Julian, Jesus; Möller, S.; Binder, J. R.; Uhlenbruck, S.; Guillon, O.; Martin, Manfred
    Bulk and grain boundary Li-diffusion in dense LiMn2O4 pellets by means of isotope exchange and ToF-SIMS analysis
    Physical chemistry, chemical physics : PCCP, 21, 47, 26066-26076 (2019)
    [DOI: 10.1039/C9CP05128G]
  • Zhang, Haiwu; De Souza, Roger
    Optimising oxygen diffusion in non-cubic, non-dilute perovskite oxides based on BiFeO3
    Journal of materials chemistry / A, 7, 44, 25274-25278 (2019)
    [DOI: 10.1039/C9TA08980B]
  • Köttgen, Julius Rütger; Martin, Manfred
    The Effect of Jump Attempt Frequencies on the Ionic Conductivity of Doped Ceria
    The journal of physical chemistry / C, 123, 32, 19437-19446 (2019)
    [DOI: 10.1021/acs.jpcc.9b06946]
  • Kwon, Deok‐Hwang; Lee, Shinbuhm; Kang, Chan Soon; Choi, Yong Seok; Kang, Sung Jin; Cho, Hae Lim; Sohn, Woonbae; Jo, Janghyun; Lee, Seung‐Yong; Oh, Kyu Hwan; Noh, Tae Won; De Souza, Roger; Martin, Manfred; Kim, Miyoung
    Unraveling the Origin and Mechanism of Nanofilament Formation in Polycrystalline SrTiO3 Resistive Switching Memories
    Advanced materials, 31, 28, 1901322 (2019)
    [DOI: 10.1002/adma.201901322]
  • Guo, Pei
    Phasenchemie und Transporteigenschaften co-substituierter, mischleitender Membranenmaterialien auf der Basis von Ba$_{0.5}$Sr$_{0.5}$Co$_{0.8}$Fe$_{0.2}$O$_{3-\delta}
    [DOI: 10.18154/RWTH-2019-06772]
  • Rheinheimer, Wolfgang; Parras, Jana Patricia; Preusker, Jan-Helmut; De Souza, Roger; Hoffmann, Michael J.
    Grain growth in strontium titanate in electric fields : The impact of space-charge on the grain-boundary mobility
    Journal of the American Ceramic Society, 102, 6, 3779-3790 (2018)
    [DOI: 10.1111/jace.16217]
  • Schwab, Christian
    Lithium- und Sauerstoffdiffusion in undotiertem und Al-dotiertem LiMn$_{2}$O$_{4}
    [DOI: 10.18154/RWTH-2019-04052]
  • Hellwig, Maren; Köppen, Martin; Hiller, Albert; Koslowski, Hans; Litnovsky, Andrey; Schmid, Klaus; Schwab, Christian; De Souza, Roger
    Impact of Surface Roughness on Ion-Surface Interactions Studied with Energetic Carbon Ions 13C+ on Tungsten Surfaces
    Condensed Matter, 4, 1, 29 (2019)
    [DOI: 10.3390/condmat4010029]
  • Waldow, Stephan Peter; Wardenga, Hans; Beschnitt, Stefan; Klein, Andreas; De Souza, Roger
    Concentration and Diffusivity of Oxygen Interstitials in Niobia-Doped Ceria
    The journal of physical chemistry / C, 123, 11, 6340-6350 (2019)
    [DOI: 10.1021/acs.jpcc.8b10613]
  • Köttgen, Julius Rütger; Martin, Manfred
    Coordination Numbers in Sm-Doped Ceria Using X-ray Absorption Spectroscopy
    The journal of physical chemistry / C, 123, 11, 6333-6339 (2019)
    [DOI: 10.1021/acs.jpcc.8b10494]
  • von der Heiden, Alexandra; Bornhöfft, Manuel; Mayer, Joachim; Martin, Manfred
    Oxygen diffusion in amorphous and partially crystalline gallium oxide
    Physical chemistry, chemical physics : PCCP, 21, 8, 4268-4275 (2018)
    [DOI: 10.1039/C8CP06439C]
  • Zacharias, Sebastian; Schroeder, Michael
    MedienBox Chemie
    Naturwissenschaften im Unterricht / Chemie, 167, 39-41 (2018)
  • Langenstück, Stefanie; Zhao, Chenchen; Englert, Ulli
    The ephemeral dihydrate of sulfanilic acid
    Acta crystallographica / International Union of Crystallography. Section C, Structural Chemistry, 74, 1, 7-12 (2018)
    [DOI: 10.1107/S2053229617016886]
  • Chun, Jakyu; Martin, Manfred; Yoo, Han-Ill
    On the kinetic decomposition voltage of ternary oxides
    Physical chemistry, chemical physics, 20, 4, 2396-2402 (2018)
    [DOI: 10.1039/C7CP06009B]
  • Kessel, Markus Franz; De Souza, Roger; Martin, Manfred
    Correction: Oxygen diffusion in single crystal barium titanate
    Physical chemistry, chemical physics, 20, 46, 29568-29568 (2018)
    [DOI: 10.1039/C8CP91913E]
  • Wei, Bo; Schroeder, Michael; Martin, Manfred
    Surface Cation Segregation and Chromium Deposition on the Double-Perovskite Oxide PrBaCo2O5+δ
    ACS applied materials & interfaces, 10, 10, 8621-8629 (2018)
    [DOI: 10.1021/acsami.7b17881]
  • Heisig, Thomas; Bäumer, Christoph; Gries, Ute; Müller, Michael Patrick; La Torre, Camilla; Lübben, Michael; Raab, Nicolas; Du, Hongchu; Menzel, Stephan; Mueller, David N.; Jia, Chun-Lin; Mayer, Joachim; Waser, Rainer; Valov, Ilia; De Souza, Roger; Dittmann, Regina
    Oxygen Exchange Processes between Oxide Memristive Devices and Water Molecules
    Advanced materials, 30, 29, 1800957 (2018)
    [DOI: 10.1002/adma.201800957]
  • Funck, Carsten Marco; Schmidt, Peter C.; Bäumer, Christoph; Dittmann, Regina; Martin, Manfred; Waser, Rainer; Menzel, Stephan
    Atomistic Investigation of the Schottky Contact Conductance Limits at SrTiO3 based Resistive Switching Devices
    NVMTS2018 : Non-Volatile Memory Technology Symposium 2018 : October 22-24, 2018, Sendai, Japan / NVMTS, Non-Volatile Memory Technology Symposium, 4 Seiten (2018)
    [DOI: 10.1109/NVMTS.2018.8603106]
  • Körfer, Sylvia
    Untersuchungen zur Fremdionendiffusion von Zr und Sr sowie zur Selbstdiffusion von $^{50}$Ti und $^{130}$Ba in Bariumtitanat (BaTiO$_{3}$) - Einkristallen
    [DOI: 10.18154/RWTH-2019-00524]
  • Choi, Hyung Jong; Bae, Kiho; Grieshammer, Steffen Paul; Han, Gwon Deok; Park, Suk Won; Kim, Jun Woo; Jang, Dong Young; Koo, Junmo; Son, Ji-Won; Martin, Manfred; Shim, Joon Hyung
    Surface Tuning of Solid Oxide Fuel Cell Cathode by Atomic Layer Deposition
    Advanced energy materials, 8, 33, 1802506 (2018)
    [DOI: 10.1002/aenm.201802506]
  • Barboni, Denis; De Souza, Roger
    The thermodynamics and kinetics of iodine vacancies in the hybrid perovskite methylammonium lead iodide
    Energy & environmental science, 11, 3266-3274 (2018)
    [DOI: 10.1039/C8EE01697F]
  • Grieshammer, Steffen Paul; Eisele, Sebastian; Köttgen, Julius Rütger
    Modeling Oxygen Ion Migration in the CeO2-ZrO2-Y2O3 Solid Solution
    The journal of physical chemistry / C, 122, 33, 18809-18817 (2018)
    [DOI: 10.1021/acs.jpcc.8b04361]
  • Rossbach, Andreas; Tietz, Frank; Grieshammer, Steffen Paul
    Structural and transport properties of lithium-conducting NASICON materials
    Journal of power sources, 391, 1-9 (2018)
    [DOI: 10.1016/j.jpowsour.2018.04.059]
  • Funck, Carsten Marco; Marchewka, Astrid; Bäumer, Christoph; Schmidt, Peter C.; Müller, Phillip; Dittmann, Regina; Martin, Manfred; Waser, Rainer; Menzel, Stephan
    A Theoretical and Experimental View on the Temperature Dependence of the Electronic Conduction through a Schottky Barrier in a Resistively Switching SrTiO3‐Based Memory Cell
    Advanced electronic materials, 4, 7, 1800062 (2018)
    [DOI: 10.1002/aelm.201800062]
  • Zhang, Haiwu; Ramadan, Amr Hazem Helmy; De Souza, Roger
    Atomistic simulations of ion migration in sodium bismuth titanate (NBT) materials: towards superior oxide-ion conductors
    Journal of materials chemistry / A, 6, 19, 9116-9123 (2018)
    [DOI: 10.1039/C8TA02545B]
  • Köttgen, Julius Rütger; Grieshammer, Steffen Paul; Hein, Philipp Andreas; Grope, Benjamin O. H.; Nakayama, Masanobu; Martin, Manfred
    Understanding the ionic conductivity maximum in doped ceria : trapping and blocking
    Physical chemistry, chemical physics, 20, 21, 14291-14321 (2018)
    [DOI: 10.1039/C7CP08535D]
  • Kumar, Nitish; Patterson, Eric A.; Frömling, Till; Gorzkowski, Edward P.; Eschbach, Peter; Love, Ian; Müller, Michael Patrick; De Souza, Roger; Tucker, Julie; Reese, Steven R.; Cann, David P.
    Defect mechanisms in BaTiO3‐BiMO3 ceramics
    Journal of the American Ceramic Society, 101, 6, 2376-2390 (2017)
    [DOI: 10.1111/jace.15403]
  • Shahi, Hamid Reza
    Multiphysik-Simulation der Transportprozesse in Sauerstoffpermeatoren mit ungeträgerten und geträgerten Hochtemperaturmembranen
    [DOI: 10.18154/RWTH-2018-223933]
  • Dąbrowa, Juliusz; Stygar, Mirosław; Mikuła, Andrzej; Knapik, Arkadiusz; Mroczka, Krzysztof; Tejchman, Waldemar; Danielewski, Marek; Martin, Manfred
    Synthesis and microstructure of the (Co,Cr,Fe,Mn,Ni)3O4 high entropy oxide characterized by spinel structure
    Materials letters, 216, 32-36 (2017)
    [DOI: 10.1016/j.matlet.2017.12.148]
  • Müller, Michael Patrick; De Souza, Roger
    SIMS study of oxygen diffusion in monoclinic HfO2 editors-pick
    Applied physics letters, 112, 5, 051908 (2018)
    [DOI: 10.1063/1.5020370]
  • Persoon, Emma Sophie
    Keramische Sauerstoffmembranen in 4-End-Oxyfuel Prozessen
    [DOI: 10.18154/RWTH-2018-00778]
  • Köttgen, Julius Rütger; Schmidt, Peter C.; Bučko, Tomáš; Martin, Manfred
    Ab initio calculation of the migration free energy of oxygen diffusion in pure and samarium-doped ceria
    Physical review / B, 97, 2, 024305 (2018)
    [DOI: 10.1103/PhysRevB.97.024305]
  • Gries, Ute; Schraknepper, Henning; Skaja, K.; Gunkel, Felix; Hoffmann-Eifert, S.; Waser, Rainer; De Souza, Roger
    A SIMS study of cation and anion diffusion in tantalum oxide
    Physical chemistry, chemical physics : PCCP, 2018, 20, 989-996 (2018)
    [DOI: 10.1039/C7CP07441G]
  • Mchedlov-Petrosyan, Petro; Martin, Manfred
    Oxides in an oxygen potential gradient: coupled morphological stability of the multiple phase boundaries
  • Beschnitt, Stefan
    Kationendiffusion in Cer(IV)-Oxid
    [DOI: 10.18154/RWTH-2018-00345]
  • Witte, Wolfram; De Souza, Roger; Martin, Manfred; Eicke, Axel; Hariskos, Dimitrios
    Deuterium Markers in CdS and Zn(O,S) Buffer Layers Deposited by Solution Growth for Cu(In,Ga)Se 2 Thin-Film Solar Cells
    Physica status solidi / Rapid research letters, 11, 12, 1700288 (2017)
    [DOI: 10.1002/pssr.201700288]
  • Zurhelle, Alexander Friedrich; Tong, Xiaorui; Klein, Andreas; Mebane, David S.; De Souza, Roger
    A Space-Charge Treatment of the Increased Concentration of Reactive Species at the Surface of a Ceria Solid Solution
    Angewandte Chemie / International edition, 56, 46, 14516-14520 (2017)
    [DOI: 10.1002/anie.201708118]
  • Kura, Chiharu; Kunisada, Yuji; Tsuji, Etsushi; Zhu, Chunyu; Habazaki, Hiroki; Nagata, Shinji; Müller, Michael Patrick; De Souza, Roger; Aoki, Yoshitaka
    Hydrogen separation by nanocrystalline titanium nitride membranes with high hydride ion conductivity
    Nature energy, 2, 10, 786-794 (2017)
    [DOI: 10.1038/s41560-017-0002-2]
  • Ramasamy, M.; Persoon, Emma; Baumann, S.; Schröder, M.; Schulze-Küppers, Falk; Görtz, Dieter; Bhave, R.; Bram, M.; Meulenberg, W. A.
    Structural and chemical stability of high performance Ce0.8Gd0.2O2-δ - FeCo2O4 dual phase oxygen transport membranes
    Journal of membrane science, 544, 278-286 (2017)
    [DOI: 10.1016/j.memsci.2017.09.011]
  • De Souza, Roger
    Limits to the rate of oxygen transport in mixed-conducting oxides
    Journal of materials chemistry / A, 5, 38, 20334-20350 (2017)
    [DOI: 10.1039/C7TA04266C]
  • Salehi, M.; Søgaard, M.; Esposito, V.; Foghmoes, S. P. V.; Persoon, E. S.; Schroeder, M.; Hendriksen, P. V.
    Oxygen permeation and stability study of (La 0.6 Ca 0.4 ) 0.98 (Co 0.8 Fe 0.2 )O 3-δ membranes
    Journal of membrane science, 542, 245-253 (2017)
    [DOI: 10.1016/j.memsci.2017.07.050]
  • Grieshammer, Steffen Paul
    Defect Interactions in the CeO 2 -ZrO 2 -Y 2 O 3 Solid Solution
    The journal of physical chemistry / C, 121, 28, 15078-15084 (2017)
    [DOI: 10.1021/acs.jpcc.7b03507]
  • Beschnitt, Stefan; De Souza, Roger
    Impurity diffusion of Hf and Zr in Gd-doped CeO 2
    Solid state ionics, 305, 23-29 (2017)
    [DOI: 10.1016/j.ssi.2017.03.029]
  • Genreith-Schriever, Annalena Roswitha
    Simulation studies of oxygen-ion transport in ceria
    [DOI: 10.18154/RWTH-2017-06153]
  • Grieshammer, Steffen Paul; Martin, Manfred
    Influence of defect interactions on the free energy of reduction in pure and doped ceria
    Journal of materials chemistry / A, 5, 19, 9241-9249 (2017)
    [DOI: 10.1039/C7TA00056A]
  • von der Heiden, Alexandra
    Einfluss von Struktur und Stöchiometrie auf die Sauerstoffdiffusion und Leitfähigkeit in amorphem Galliumoxid
    [DOI: 10.18154/RWTH-2017-03989]
  • Schie, Marcel; Müller, Michael Patrick; Salinga, Martin; Waser, Rainer; De Souza, Roger
    Ion migration in crystalline and amorphous HfO X
    The journal of chemical physics, 146, 9, 094508 (2017)
    [DOI: 10.1063/1.4977453]
  • Köttgen, Julius Rütger; Zacherle, Tobias; Grieshammer, Steffen Paul; Martin, Manfred
    Ab initio calculation of the attempt frequency of oxygen diffusion in pure and samarium doped ceria
    Physical chemistry, chemical physics : PCCP, 19, 15, 9957-9973 (2017)
    [DOI: 10.1039/C6CP04802A]
  • De Souza, Roger; Amezawa, Koji; Burriel, Mónica; Chueh, William; Kelder, Erik M.
    Special Issue for the E-MRS Spring Meeting Symposium D on Solid State Ionics
    Solid state ionics, 299, SI, 1-1 (2017)
    [DOI: 10.1016/j.ssi.2016.12.018]
  • Falkenstein, Andreas
    Transport kinetics of hydrogen permeable lanthanum tungstate
    [DOI: 10.18154/RWTH-2017-02136]