Determining the Role of Oxygen Vacancies in the Photocatalytic Performance of WO3 for Water Oxidation [PDF]
, 2019 Oxygen vacancies are common to most metal oxides, whether intentionally incorporated or otherwise, and the study of these defects is of increasing interest for solar water splitting.
James R, Durrant +3 more
core +2 more sources
Conductivity in Ferroelectric Barium Titanate : Electrons Versus Oxygen Vacancies [PDF]
, 2020 Mobile oxygen vacancies are increasingly widely believed to be responsible for electrical conductivity in perovskite oxide ferroelectrics. Here, this hypothesis is debated. The small-signal conductivity is investigated in oxygen-deficient films of barium
Tyunina, M.
core +1 more source
Oxygen vacancies in strained
, 2017 We report the enthalpy of oxygen vacancy formation in thin films of electron-doped SrTiO3, under different degrees of epitaxial stress. We demonstrate that both compressive and tensile strain decrease this energy at a very similar rate and promote the ...
L. Iglesias +10 more
core +1 more source
Effects of oxygen vacancies on polarization stability of barium titanate
, 2016 Oxygen vacancy, a kind of native point defects in ferroelectric ceramics, usually causes an increase of the dielectric loss. Based on experimental observations, it is believed that all of the oxygen vacancies are an unfavorable factor for energy saving ...
Shen, Y. +12 more
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On the Relative Stability of Near-Surface Oxygen Vacancies at the CeO2(111) Surface upon Zr Doping [PDF]
, 2019 Ceria (CeO2)-based materials are of great importance in numerous technological applications such as three-way catalysts (TWCs) [Catal. Today 62, 35-50 (2000) and Chem. Rev. 116, 5987-6041 (2016)], hydrocarbon reforming [Chem. Rev.
G. S., Otero +3 more
core +1 more source
Influence of crystallographic structure and metal vacancies on the oxygen evolution reaction performance of Ni-based layered hydroxides [PDF]
, 2023 Nickel-based layered hydroxides (LHs) are a family of efficient electrocatalysts for the alkaline oxygen evolution reaction (OER). Nevertheless, fundamental aspects such as the influence of the crystalline structure and the role of lattice distortion of ...
Roger, Sanchis-Gual +7 more
core +1 more source
Oxygen-vacancy-related relaxation and conduction behavior in (Pb1-xBax)(Zr0.95Ti0.05)O3 ceramics
AIP Advances, 2014 (Pb1-xBax)(Zr0.95Ti0.05)O3 (x = 0, 0.025, 0.05, 0.075 and 0.1) ceramics were prepared via a solid-state reaction route. Low-frequency (20 ∼ 2 × 107 Hz) dielectric properties were investigated in the temperature region of 25-650 °C.
Tian-Fu Zhang +6 more
doaj +1 more source
In Situ Analysis of Oxygen Vacancies and Band Alignment in HfO2/TiN Structure for CMOS Applications
Nanoscale Research Letters, 2017 The density of oxygen vacancies characterization in high-k/metal gate is significant for semiconductor device fabrication. In this work, a new approach was demonstrated to detect the density of oxygen vacancies by in situ x-ray photoelectron spectroscopy
Da-Peng Xu +9 more
doaj +1 more source
Magnetic behavior in LiNbO3 nanocrystallites caused by oxygen vacancies
, 2014 Ferromagnetism is observed in LiNiO3 nanocrystals exposed to a reducing atmosphere intended to create oxygen vacancies. The existence of vacancies is confirmed by measuring the oxygen depletion across the selected nanoparticles by TEM.
ABEL HURTADO MACIAS +3 more
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Synthesis of Surface Oxygen-deficient BiPO4 Nanocubes with Enhanced Visible Light Induced Photocatalytic Activity [PDF]
Materials Research, 2017 The visible light driven BiPO4 nanocubes with sufficient surface oxygen deficiency were fabricated by a hydrothermal process and subsequently ultrasonic assistant Fe reduction process.
Bingtao Shi +5 more
doaj +1 more source