Articles with "oxygen vacancies" as a keyword



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Quantum Conductance Probing of Oxygen Vacancies in SrTiO3 Epitaxial Thin Film using Graphene.

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Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201700071

Abstract: Quantum Hall conductance in monolayer graphene on an epitaxial SrTiO3 (STO) thin film is studied to understand the role of oxygen vacancies in determining the dielectric properties of STO. As the gate-voltage sweep range is… read more here.

Keywords: conductance; oxygen vacancies; graphene; thin film ... See more keywords
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Engineering Oxygen Vacancies in a Polysulfide-Blocking Layer with Enhanced Catalytic Ability.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.201907444

Abstract: The practical application of the lithium-sulfur (Li-S) battery is seriously restricted by its shuttle effect, low conductivity, and low sulfur loading. Herein, first-principles calculations are conducted to verify that the introduction of oxygen vacancies in… read more here.

Keywords: oxygen vacancies; oxygen; catalytic ability; engineering oxygen ... See more keywords
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Modulating Oxygen Vacancies in Lead Chromate for Photoelectrocatalytic Water Splitting.

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Published in 2023 at "Advanced materials"

DOI: 10.1002/adma.202300914

Abstract: Although modulating oxygen vacancies in semiconductors has attracted broad interest in photocatalysis and photoelectrocatalysis, identifying the intrinsic roles of oxygen vacancies on photoelectrocatalytic properties is often elusive. Herein, we regulated the oxygen vacancies in a… read more here.

Keywords: lead chromate; energy levels; modulating oxygen; water ... See more keywords
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Tracking the Influence of Thermal Expansion and Oxygen Vacancies on the Thermal Stability of Ni‐Rich Layered Cathode Materials

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Published in 2020 at "Advanced Science"

DOI: 10.1002/advs.201902413

Abstract: Abstract The ever‐growing demand for high‐energy lithium‐ion batteries in portable electronics and electric vehicles has triggered intensive research efforts over the past decade. An efficient strategy to boost the energy and power density of lithium‐ion… read more here.

Keywords: thermal expansion; oxygen vacancies; cathode materials; cathode ... See more keywords
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Surface Oxygen Vacancies: Dynamics of Photo‐Induced Surface Oxygen Vacancies in Metal‐Oxide Semiconductors Studied Under Ambient Conditions (Adv. Sci. 22/2019)

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Published in 2019 at "Advanced Science"

DOI: 10.1002/advs.201970132

Abstract: Surface oxygen vacancy defects are some of the most reactive sites but are notoriously difficult to detect, often healing upon exposure to air. In article number https://doi.org/10.1002/advs.201901841, Ivan P. Parkin, Stefan A. Maier, and co‐workers… read more here.

Keywords: surface; ambient conditions; photo induced; surface oxygen ... See more keywords
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Tunneling Spintronics across MgO Driven by Double Oxygen Vacancies

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Published in 2017 at "Advanced electronic materials"

DOI: 10.1002/aelm.201600390

Abstract: Tunneling spintronic devices are foreseen to play an important role in emerging technologies, from data read-out and storage to processing, including neuromorphic computing. A counterintuitive suspicion is that double oxygen vacancies within the commonly used… read more here.

Keywords: mgo; oxygen; spintronic performance; double oxygen ... See more keywords
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Revealing the Effects of Trace Oxygen Vacancies on Improper Ferroelectric Manganite with In Situ Biasing

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Published in 2019 at "Advanced Electronic Materials"

DOI: 10.1002/aelm.201800827

Abstract: Multiferroic materials, which exhibit multiple orderings, are promising for next generation data‐storage device applications. YMnO3, in particular, because of the coexistence of the ferroelectricity and (anti)ferromagnetism within one single material, has drawn special attentions to… read more here.

Keywords: chemistry; oxygen vacancies; revealing effects; situ biasing ... See more keywords
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Refilling Nitrogen to Oxygen Vacancies in Ultrafine Tungsten Oxide Clusters for Superior Lithium Storage

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Published in 2019 at "Advanced Energy Materials"

DOI: 10.1002/aenm.201902148

Abstract: Morphological engineering of nanosized transitional metal oxides shows great promise for performance improvement, yet limited efforts have been attempted to engineer the atomic structure. Oxygen vacancy (VO) can boost charge transfer leading to enhanced performance;… read more here.

Keywords: storage; tungsten oxide; spectroscopy; oxygen ... See more keywords
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Large Dimensional CeO2 Nanoflakes by Microwave‐Assisted Synthesis: Lamellar Nano‐Channels and Surface Oxygen Vacancies Promote Catalytic Activity

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Published in 2018 at "ChemCatChem"

DOI: 10.1002/cctc.201800784

Abstract: Large nano‐structured flakes of CeO2 (20–80 nm in thickness, up to 5.6 μm in diameter) were synthesized by a combination of microwave (MW), ultraviolet (UV) and ultrasound (US), with or without pressure (P). The CeO2 structures were… read more here.

Keywords: ce3; oxygen vacancies; ceo2 nanoflakes; surface oxygen ... See more keywords
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Rapid Surface Reconstruction of Amorphous Co(OH)2/WOx with Rich Oxygen Vacancies to Promote Oxygen Evolution.

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Published in 2021 at "ChemSusChem"

DOI: 10.1002/cssc.202102020

Abstract: Herein, a transition metal dissolution-oxygen vacancy strategy, based on dissolution of highly oxidized transition metal species in alkaline electrolyte, was suggested to construct high-performance amorphous Co(OH) 2 /WO x (a-CoW) catalyst for OER. The surface… read more here.

Keywords: oxygen; surface reconstruction; oxygen vacancies; rapid surface ... See more keywords
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Photoactivity and Stability Co-Enhancement: When Localized Plasmons Meet Oxygen Vacancies in MgO.

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Published in 2018 at "Small"

DOI: 10.1002/smll.201803233

Abstract: Durability is still one of the key obstacles for the further development of photocatalytic energy-conversion systems, especially low-dimensional ones. Encouragingly, recent studies show that nanoinsulators such as SiO2 and MgO exhibit substantially enhanced photocatalytic durability… read more here.

Keywords: photoactivity; localized plasmons; photoactivity stability; mgo photoactivity ... See more keywords