Treffer 201 - 250 von 348 Ergebnissen

  • Ramadan, Amr Hazem Helmy; Allan, Neil L.; De Souza, Roger
    Simulation Studies of the Phase Stability of the Srn+1TinO3n+1 Ruddlesden-Popper Phases
    Journal of the American Ceramic Society, 96, 7, 2316-2321 (2013)
    [DOI: 10.1111/jace.12300]
  • Hinterberg, Judith Maria; Adams, Alina Reghina; Blümich, Bernhard; Heitjans, Paul; Kim, Sangtae; Munir, Zuhair A.; Martin, Manfred
    1 H-NMR measurements of proton mobility in nano-crystalline YSZ
    Physical chemistry, chemical physics : PCCP, 15, 45, 19825-19830 (2013)
    [DOI: 10.1039/c3cp53039f]
  • Grieshammer, Steffen Paul; Zacherle, Tobias; Martin, Manfred
    Entropies of defect formation in ceria from first principles
    Physical chemistry, chemical physics : PCCP, 15, 38, 15935-15942 (2013)
    [DOI: 10.1039/c3cp51913a]
  • Stopic, Srecko; Friedrich, Bernd; Schroeder, Michael; Weirich, Thomas E.
    Synthesis of TiO2 core/RuO2 shell particles using multistep ultrasonic spray pyrolysis
    Materials research bulletin, 48, 9, 3633-3635 (2013)
    [DOI: 10.1016/j.materresbull.2013.05.050]
  • Liu, Milias; Leichtweiß, Thomas; Janek, Jürgen; Martin, Manfred
    In-situ structural investigation of non-stoichiometric HfO2-x films using quick-scanning extended X-ray absorption fine structure
    Thin solid films, 539, 60-64 (2013)
    [DOI: 10.1016/j.tsf.2013.04.149]
  • Zacherle, T.; Schmidt, P. C.; Martin, Manfred
    Ab initio calculations on the defect structure of β-Ga2O3
    Physical review / B, 87, 23, 235206 (2013)
    [DOI: 10.1103/PhysRevB.87.235206]
  • Yi, Jianxin; Weirich, Thomas E.; Schroeder, Michael
    CO2 corrosion and recovery of perovskite-type BaCo1−x−yFexNbyO3−δ membranes
    Journal of membrane science, 437, 49-56 (2013)
    [DOI: 10.1016/j.memsci.2013.02.049]
  • Hinterberg, Judith Maria; Zacherle, T.; De Souza, Roger
    Activation Volume Tensor for Oxygen-Vacancy Migration in Strained CeO2 Electrolytes
    Physical review letters : PRL, 110, 20, 205901 (2013)
    [DOI: 10.1103/PhysRevLett.110.205901]
  • Kikm, Euising; Yeon, Jung In; Martin, Manfred; Yoo, Han-Ill
    Experimental Demonstration of the path- and time-dependence of open-circuit voltage of galvanic cells involving a multinary compound under multiple chemical potential gradients
    Solid state ionics, 235, March, 22-31 (2013)
    [DOI: 10.1016/j.ssi.2013.01.006]
  • Zacherle, Tobias; Schriever, Annalena; De Souza, Roger; Martin, Manfred
    Ab initio analysis of defect structure of ceria
    Physical review / B, 87, 13, 134104 (2013)
    [DOI: 10.1103/PhysRevB.87.134104]
  • De Souza, Roger; Ramadan, Amr Hazem Helmy
    Ionic conduction in the SrTiO3 YSZ SrTiO3 heterostructure
    Physical chemistry, chemical physics : PCCP, 15, 13, 4505-4509 (2013)
    [DOI: 10.1039/c3cp44399j]
  • Lakshmi, N.; Yoo, H.-I.; Martin, Manfred
    Oxidation Kinetics of Zirconium Examined by In Situ X-ray Diffraction
    Journal of the Electrochemical Society : JES, 160, 3, C136-C141 (2013)
    [DOI: 10.1149/2.006304jes]
  • Yi, Jianxin; Schroeder, Michael; Martin, Manfred
    CO2-Tolerant and Cobalt-Free SrFe0.8Nb0.2O3−δ Perovskite Membrane for Oxygen Separation
    Chemistry of materials, 25, 6, 815-817 (2013)
    [DOI: 10.1021/cm303666v]
  • Hinterberg, Judith Maria
    Verbesserung der Eigenschaften von oxidischen Elektrolytmaterialien
  • Zacherle, Tobias
    Ab initio Rechnungen zu Defekten in Galliumoxid
  • Pietrowski, Martha Joanna
    Transporteigenschaften von Wasser und Sauerstoff in Yttrium-stabilisiertem Zirkoniumdioxid
  • Grope, Benjamin O. H.; Zacherle, Tobias; Nakayama, M.; Martin, Manfred
    Oxygen ion conductivity of doped ceria: A Kinetic Monte Carlo study
    Solid state ionics, 225 Special, SI, 476-483 (2012)
    [DOI: 10.1016/j.ssi.2012.01.028]
  • Pietrowski, Martha Joanna; De Souza, Roger; Kim, Sangtae; Munir, Zuhair A.; Martin, Manfred
    Dehydration kinetics of nano-YSZ ceramics monitored by in-situ infrared spectroscopy
    Solid state ionics, 225 Special, 4, 241-244 (2012)
    [DOI: 10.1016/j.ssi.2012.02.033]
  • Schie, Marcel; Marchewka, Astrid; De Souza, Roger; Waser, Rainer
    Atomistic Simulation Study on Oxygen Deficient Strontium Titanate
    Frontiers in electronic materials : a collection of extended abstracts of the Nature Conference Frontiers in Electronic Materials, June 17th to 20th, Aachen, Germany ; [correlation effects, spintronics, and memristive phenomena - fundamentals and applications] / ed. by Joerg Heber ..., 286-286 (2012)
  • Schie, Marcel; Marchewka, Astrid; Müller, Thomas; De Souza, Roger; Waser, Rainer
    Molecular Dynamics Simulations of Oxygen Vacancy Diffusion in SrTiO 3
    Journal of physics / Condensed matter, 24, 48, 485002-485008 (2012)
    [DOI: 10.1088/0953-8984/24/48/485002]
  • Gauquelin, Nicolas
    Impact of the structural anisotropy of La 2 NiO 4+delta on high temperature surface modifications and diffusion of oxygen
  • De Souza, Roger; Metlenko, Veronika; Park, Daesung; Weirich, Thomas E.
    Behavior of oxygen vacancies in single-crystal SrTiO3 : equilibrium distribution and diffusion kinetics
    Physical review / B, 85, 17, 174109 (2012)
    [DOI: 10.1103/PhysRevB.85.174109]
  • Nakayama, Masanobu; Ohshima, Hiromi; Nogami, Masayuki; Martin, Manfred
    A concerted migration mechanism of mixed oxide ion and electron conduction in reduced ceria studied by first-principles density functional theory
    Physical chemistry, chemical physics : PCCP, 14, 17, 6079-6084 (2012)
    [DOI: 10.1039/c2cp00020b]
  • Yi, Jianxin; Brendt, Jochen; Schroeder, Michael; Martin, Manfred
    Oxygen permeation and oxidation states of transition metals in (Fe, Nb)-doped BaCoO3 − δ perovskites
    Journal of membrane science, 387, 17-23 (2012)
    [DOI: 10.1016/j.memsci.2011.08.053]
  • De Souza, Roger; Ramadan, Amr Hazem Helmy; Hoerner, Stefanie
    Modifying the barriers for oxygen-vacancy migration in fluorite-structured CeO2 electrolytes through strain: a computer simulation study
    Energy & environmental science, 5, 1, 5445-5453 (2012)
    [DOI: 10.1039/c2ee02508f]
  • Hirsemann, Dunja; Shylesh, Sankaranarayanapillai; De Souza, Roger; Diar-Bakerly, Bashar; Biersack, Bernhard; Müller, David Nikolaus; Martin, Manfred; Schobert, Rainer; Breu, Josef
    Large-Scale, Low-Cost Fabrication of Janus-Type Emulsifiers by Selective Decoration of Natural Kaolinite Platelets
    Angewandte Chemie / International edition, 51, 6, 1348-1352 (2012)
    [DOI: 10.1002/anie.201106710]
  • Pin, Sonia; Newton, Mark A.; D'Acapito, Francesco; Zema, Michele; Tarantino, Serena C.; Spinolo, Giorgio; De Souza, Roger; Martin, Manfred; Ghigna, Paolo
    Mechanisms of Reactions in the Solid State: (110) Al2O3 + (001) ZnO Interfacial Reaction
    The journal of physical chemistry / C, 116, 1, 980-986 (2012)
    [DOI: 10.1021/jp209622u]
  • Mueller, David N.; De Souza, Roger; Yoo, Han-Ill; Martin, Manfred
    Phase Stability and Oxygen Nonstoichiometry of Highly Oxygen-Deficient Perovskite-Type Oxides: A Case Study of (Ba,Sr)(Co,Fe)O3−δ
    Chemistry of materials, 24, 2, 269-274 (2012)
    [DOI: 10.1021/cm2033004]
  • Harvey, Steven P.; De Souza, Roger; Martin, Manfred
    Diffusion of La and Mn in Ba0.5Sr0.5Co0.8Fe0.2O3−δ polycrystalline ceramics
    Energy & environmental science, 5, 2, 5803-5813 (2012)
    [DOI: 10.1039/c1ee02740a]
  • Brendt, Jochen
    Variation von Kristallinität und Stöchiometrie in mittels PLD hergestellten Schichten aus Galliumoxid, Galliumnitrid und Bariumzirkonat
    [DOI: 10.18154/RWTH-CONV-114614]
  • Belghoul, Badreddine
    Mayenit(Ca 12 Al 14 O 33 )-Bildung durch die Festkörperreaktion zwischen CaAl 2 O 4 und Ca 3 Al 2O 6
  • Mazar, Omri; Schroeder, Michael; Tsur, Yoed
    Synthesis of inside-out core-shell perovskite-type oxide nanopowder
    Chemical engineering journal, 166, 3, 1139-1143 (2011)
    [DOI: 10.1016/j.cej.2010.11.084]
  • Yi, Jianxin; Schroeder, Michael
    High temperature degradation of Ba0.5Sr0.5Co0.8Fe0.2O3−δ membranes in atmospheres containing concentrated carbon dioxide
    Journal of membrane science, 378, 1/2, 163-170 (2011)
    [DOI: 10.1016/j.memsci.2011.04.044]
  • Mauder, Christof; Reuters, Benjamin; Behmenburg, Hannes; De Souza, Roger; Woitok, Joachim F.; Chou, Mitch M. C.; Heuken, Michael; Kalisch, Holger; Jansen, Rolf H.
    Mechanisms of impurity incorporation during MOVPE growth of m-plane GaN layers on LiAlO2
    Physica status solidi / C, Current topics in solid state physics, 8, 7/8, 2050-2052 (2011)
    [DOI: 10.1002/pssc.201001027]
  • Quach, Dat V.; Kim, Sangtae; De Souza, Roger; Martin, Manfred; Munir, Zuhair A.
    Grain Size Effect in the Electrical Properties of Nanostructured Functional Oxides through Pressure Modification of the Spark Plasma Sintering Method
    Key engineering materials, 484, 107-116 (2011)
    [DOI: 10.4028/]
  • Martin, Manfred
    Ionic Transport under Chemical Potential Gradients - Kinetic Demixing and Decomposition in Metal Oxides and Scale Growth in High-Temperature Oxidation
    Materials science forum, 696, 28-33 (2011)
    [DOI: 10.4028/]
  • De Souza, Roger; Munir, Zuhair A.; Kim, Sangtae; Martin, Manfred
    Defect chemistry of grain boundaries in proton-conducting solid oxides
    Solid state ionics, 196, 1, 1-8 (2011)
    [DOI: 10.1016/j.ssi.2011.07.001]
  • Valov, Ilia; Luerssen, Bjoern; Mutoro, Eva; Gregoratti, Luca; De Souza, Roger; Bredow, Thomas; Günther, Sebastian; Barinov, Alexei; Dudin, Pavel; Martin, Manfred; Janek, Jürgen
    Electrochemical activation of molecular nitrogen at the Ir/ YSZ interface
    Physical chemistry, chemical physics : PCCP, 13, 1, 3394-3410 (2011)
    [DOI: 10.1039/C0CP01024C]
  • Röhrens, Daniel
    Über den Effekt von Stickstoffsubstitution auf die strukturellen Eigenschaften von polykristallinem Galliumoxid und die elektrische Leitfähigkeit von amorphen Lanthangallat Dünnschichten
  • Müller, David Nikolaus
    Strukturelle und elektronische Untersuchungen am hoch sauerstoffdefizitären Mischleiter Ba x Sr 1-x Co 0,8 Fe 0,2 O 3-delta (BSCF)
  • De Souza, Roger; Martin, Manfred
    Secondary Ion Mass Spectrometry - SIMS
    The encyclopedia of mass spectrometry / edited by Michael L. Gross .... - Vol. 5: Elemental and isotope ratio mass spectrometry / vol. eds. Diane Beauchemin ..., 381-397 (2010)
  • Quach, Dat V.; Kim, Sangtae; Martin, Manfred; Munir, Zuhair A.
    Sintering and properties of nanometric functional oxides
    Innovative Processing and manufacturing of advanced ceramics and composites : a collection of papers presented at the 8th Pacific Rim Conference on Ceramic and Glass Technology, May 31 - June 5, 2009, Vancouver, British Columbia / American Ceramic Society. Ed. by: Zuhair A. Munir ... Volume ed.: Mrityunjay Singh, 55-61 (2010)
    [DOI: 10.1002/9780470880456.ch5]
  • Avila-Paredes, Hugo J.; Chen, Chien-Ting; Wang, Shizhong; De Souza, Roger; Martin, Manfred; Munir, Zuhair A.; Kim, Sangtae
    Grain boundaries in dense nanocrystalline ceria ceramics : exclusive pathway for proton conduction at room temperature
    Journal of materials chemistry, 20, 45, 10110-10112 (2010)
    [DOI: 10.1039/C0JM02967J]
  • Mader, Werner; Prangenberg, Thomas; Eichhorn, Simon; De Souza, Roger; Martin, Manfred
    Iron Diffusion and Compound Formation in Zinc Oxide
    Diffusion fundamentals, 12, 57, 2 Seiten (2010)
  • Quach, Dat V.; Avila-Paredes, Hugo J.; Kim, Sangtae; Martin, Manfred; Munir, Zuhair A.
    Pressure effects and grain growth kinetics in the consolidation of nanostructured fully stabilized zirconia by pulsed electric current sintering
    Acta materialia, 58, 1, 5022-5030 (2010)
    [DOI: 10.1016/j.actamat.2010.05.038]
  • Avila-Paredes, Hugo J.; Barrera-Calva, Enrique; Anderson, Harlan U.; De Souza, Roger; Martin, Manfred; Munir, Zuhair A.; Kim, Sangtae
    Room-temperature protonic conduction in nanocrystalline films of yttria-stabilized zirconia
    Journal of materials chemistry, 20, 30, 6235-6238 (2010)
    [DOI: 10.1039/C0JM00051E]
  • Mueller, David N.; De Souza, Roger; Weirich, Thomas E.; Röhrens, Daniel; Mayer, Joachim; Mayer, Joachim; Martin, Manfred
    A kinetic study of the decomposition of the cubic perovskite-type oxide BaxSr1−xCo0.8Fe0.2O3−δ (BSCF) (x = 0.1 and 0.5)
    Physical chemistry, chemical physics : PCCP, 12, 35, 10320-10328 (2010)
    [DOI: 10.1039/C0CP00441C]
  • Kessel, Markus Franz; De Souza, Roger; Yoo, Han-Ill; Martin, Manfred
    Strongly enhanced incorporation of oxygen into barium titanate based multilayer ceramic capacitors using water vapor
    Applied physics letters, 97, 2, 021910 (2010)
    [DOI: 10.1063/1.3460156]
  • Röhrens, Daniel; Brendt, Jochen; Samuelis, Dominik; Martin, Manfred
    On the ammonolysis of Ga2O3: An XRD, neutron diffraction and XAS investigation of the oxygen-rich part of the system Ga2O3-GaN
    Journal of solid state chemistry, 183, 3, 532-541 (2010)
    [DOI: 10.1016/j.jssc.2009.12.024]
  • Wang, Shizhong; Chen, Shushu; Navrotsky, Alexandra; Martin, Manfred; Kim, Sangtae; Munir, Zuhair A.
    Modified polyol-mediated synthesis and consolidation of Gd-doped ceria nanoparticles
    Solid state ionics, 181, 8/10, 372-378 (2010)
    [DOI: 10.1016/j.ssi.2010.01.021]