Results 1 to 10 of about 18,738 (267)
Oxygen vacancy defects engineering on Cu-doped Co3O4 for promoting effective COS hydrolysis
Green Energy and Environment, 2023 The activation of H2O is a key step of the COS hydrolysis, which may be tuned by oxygen vacancy defects in the catalysts. Herein, we have introduced Cu into Co3O4 to regulate the oxygen vacancy defect content of the catalysts.
Yan Zeng, Yong Zheng, Yanning Cao
exaly +3 more sources
Oxygen vacancy-induced strengthening and toughening in (K,Na)NbO<sub>3</sub>-based piezoceramics revealed via nanoindentation. [PDF]
Nat CommunDislocations are emerging as a pivotal factor for tailoring ceramics’ functional and mechanical properties. The introduction of point defects, notably oxygen vacancies, is unavoidable during the conventional sintering process in polycrystalline ceramics.
Zhang Z, Yang B, Chen L, Zhang Z, Guo J.
europepmc +2 more sources
Oxygen Vacancy, Oxygen Vacancy–Vacancy Pairs, and Frenkel Defects in Cubic Lutetium Oxide [PDF]
The Journal of Physical Chemistry C, 2020 Electronic and structural properties of cubic Lu2O3 with either single oxygen vacancy, oxygen vacancy-vacancy pair or a Frenkel pair (oxygen vacancy and interstitial oxygen) were analyzed using ab ...
A. Shyichuk, E. Zych
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Sr Doping and Oxygen Vacancy Formation in La1−xSrxScO3−δ Solid Solutions: Computational Modelling
Crystals, 2022 Sr-doped lanthanum scandate La1−xSrxScO3−δ (LSS) is a promising perovskite-type material for electrochemical applications such as proton conductors. Oxygen vacancy is a common defect in ABO3-type perovskites.
Yuri A. Mastrikov +5 more
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Results in Physics, 2021 We experimentally studied the formation of vacancy clusters and oxygen related defects in uranium oxide (UOx) thin films (
C. Macchi +7 more
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AIP Advances, 2021 The non-radiative carrier captures of point defects associated with proton generation in both crystalline (α-quartz) and amorphous silica (a-SiO2) have been investigated by using first-principles calculations based on the density functional theory. Major
Yunliang Yue +4 more
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Oxygen Vacancy Injection on (111) CeO2 Nanocrystal Facets for Efficient H2O2 Detection
Biosensors, 2022 Facet and defect engineering have achieved great success in improving the catalytic performance of CeO2, but the inconsistent reports on the synergistic effect of facet and oxygen vacancy and the lack of investigation on the heavily doped oxygen vacancy ...
Tong Li, Qi Wang, Zhou Wang
doaj +1 more source
Oxygen Vacancies in Perovskite Oxide Piezoelectrics [PDF]
Materials, 2020 The excellent electro-mechanical properties of perovskite oxide ferroelectrics make these materials major piezoelectrics. Oxygen vacancies are believed to easily form, migrate, and strongly affect ferroelectric behavior and, consequently, the piezoelectric performance of these materials and devices based thereon.
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A study on the diffusion properties of oxygen in Al and W-doped λ-Ta2O5
AIP Advances, 2021 The formation energy of an oxygen vacancy and the diffusion barrier of an oxygen ion have a significant impact on the operating voltage and other parameters of resistive random access memory.
Xinghui Wu +4 more
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Orienting Oxygen Vacancies for Fast Catalytic Reaction [PDF]
Advanced Materials, 2013 Catalysis is indispensable to chemical processes and relevant to many aspects of modern life. Owing to the intriguing electronic structures and good ionic properties, multivalent transition metal oxides have attracted attention as key catalysts for various energy and environmental applications.
Jeen, Hyoungjeen +6 more
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