Results 21 to 30 of about 319,926 (300)

Solution-processed pristine metal oxides as electron-transporting materials for perovskite solar cells

Frontiers in Electronic Materials, 2023
In recent years, perovskite material-based photovoltaic devices have attracted great attention of researchers because of an expeditious improvement in their efficiency from 3.8% to over 25%.
Harshit Sharma, Harshit Sharma, Ritu Srivastava, Ritu Srivastava   +3 more
doaj   +1 more source

Electrochemical Oxidative Fluorination of an Oxide Perovskite [PDF]

Chemistry of Materials, 2020
We report the successful electrochemical intercalation of F-ions into a densely packed perovskite oxide from a liquid electrolyte at room temperature. Using galvanostatic oxidation and electrochemical impedance spectroscopy coupled with operando X-ray diffraction, we show that roughly 0.5 equivalents of F-ions can be inserted onto the vacant A-site of ...
Nicholas H. Bashian, Mateusz Zuba, Ahamed Irshad, Shona M. Becwar, Julija Vinckeviciute, Warda Rahim, Kent J. Griffith, Eric T. McClure, Joseph K. Papp, Bryan D. McCloskey, David O. Scanlon, Bradley F. Chmelka, Anton Van der Ven, Sri R. Narayan, Louis F. J. Piper, Brent C. Melot   +15 more
openaire   +1 more source

Self-Diffusion in Perovskite and Perovskite Related Oxides: Insights from Modelling

Applied Sciences, 2020
Perovskite and perovskite related oxides are important materials with applications ranging from solid oxide fuel cells, electronics, batteries and high temperature superconductors. The investigation of physical properties at the atomic scale such as self-
Efstratia N. Sgourou, Yerasimos Panayiotatos, Konstantinos Davazoglou, Andrei L. Solovjov, Ruslan V. Vovk, Alexander Chroneos   +5 more
doaj   +1 more source

Perovskite With Tunable Active-Sites Oxidation State by High-Valence W for Enhanced Oxygen Evolution Reaction

Frontiers in Chemistry, 2022
Perovskite oxides have been established as a promising kind of catalyst for alkaline oxygen evolution reactions (OER), because of their regulated non-precious metal components.
Jiabiao Yan, Mingkun Xia, Chenguang Zhu, Dawei Chen, Fanglin Du   +4 more
doaj   +1 more source

Du choix du précurseur pour la synthèse de poudres d’oxydes La1-xSrxMnO3 [PDF]

, 2005
Différentes poudres précurseurs (carbonates, oxalates, citrates) de manganites de lanthane dopés au strontium ont été préparées par chimie douce. Après calcination, ces précurseurs conduisent aux oxydes mixtes à structure perovskite LaxSr1–xMnO3, dont la
Calmet, Christophe, Tailhades, Philippe, Coradin, Hervé, Rousset, Abel, Guillemet-Fritsch, Sophie, Guillemet, Sophie, Alphonse, Pierre   +6 more
core   +1 more source

Modeling of Ferroelectric, Semiconducting and Superconducting Perovskite Oxides Using Crystalline Accommodation Law [PDF]

Alfarama Journal of Basic & Applied Sciences
Perovskite oxides are very important materials for different applications because they have a variety of very interesting properties such as ferroelectric, antiferroelectric, ferromagnetic, antiferromagnetic, semiconducting and superconducting at low ...
Tarek El Ashram, eman El esh, Zeinab Mohammed, Ansam Ellotah   +3 more
doaj   +1 more source

Giant multiphononic effects in a perovskite oxide

npj Computational Materials, 2023
Perovskite oxides offer tremendous potential for applications in information storage and energy conversion, owing to a subtle interplay between their spin, charge, orbital and lattice degrees of freedom.
Claudio Cazorla, Massimiliano Stengel, Jorge Íñiguez, Riccardo Rurali   +3 more
doaj   +1 more source

Metamagnetic Behavior in a Quadruple Perovskite Oxide

Inorganic Chemistry, 2021
A cubic quadruple perovskite oxide CeMn3Cr4O12 has been synthesized under high-pressure and high-temperature conditions of 8 GPa and 1273 K. The X-ray absorption spectroscopy reveals that the Ce ions are in a trivalent state, as represented by the ionic model of Ce3+Mn3+3Cr3+4O12.
Yuichi Okazaki, Yuta Kato, Yuta Kizawa, Seiji Oda, Kai Uemura, Takuya Nishio, Fuminari Fujii, Shintaro Fujinari, Masaya Kinoshita, Takao Odake, Hayato Togano, Takashi Kamegawa, Shogo Kawaguchi, Hajime Yamamoto, Hidekazu Ikeno, Shunsuke Yagi, Kouhei Wada, Kyo-Hoon Ahn, Atsushi Hariki, Ikuya Yamada   +19 more
openaire   +3 more sources

The polarizability model for ferroelectricity in perovskite oxides [PDF]

Journal of Physics: Condensed Matter, 2012
This article reviews the polarizability model and its applications to ferroelectric perovskite oxides. The motivation for the introduction of the model is discussed and nonlinear oxygen ion polarizability effects and their lattice dynamical implementation outlined.
openaire   +4 more sources

Metal oxides and their roles in heterogeneous catalysis: special emphasis on synthesis protocols, intrinsic properties, and their influence in transfer hydrogenation reactions

SN Applied Sciences, 2023
This review emphasizes La-based metal oxides of the perovskite form and their application in heterogeneous catalytic transfer hydrogenation (CTH) reactions from year 2013. Perovskites are potential alternatives to noble metals. The possibility of induced-
Tafadzwa Precious Mabate, Nomathamsanqa Prudence Maqunga, Sinemihlali Ntshibongo, Mulisa Maumela, Ndzondelelo Bingwa   +4 more
doaj   +1 more source