Results 111 to 120 of about 112,711 (289)
Beilstein Journal of Nanotechnology, 2019 The prominent role of oxygen vacancies in the photocatalytic performance of bismuth tungsten oxides is well recognized, while the underlying formation mechanisms remain poorly understood.
Hong-long Shi +4 more
doaj +1 more source
Spinel oxides, with the general formula AB2O4, are a class of ternary transition metal compounds renowned for their diverse elemental composition and tunable electronic properties. Their cubic crystal structure, belonging to the Fd-3 m space group, features metal ions in both tetrahedral and octahedral coordination centers, which can be manipulated to ...
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Advanced Functional Materials, EarlyView.MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan +16 more
wiley +1 more source
工程科学学报This study undertook a thorough examination of three different morphologies (rod-shaped, cubic, and spherical) of CeO2 and La-doped catalysts on CeO2. The focus was on understanding the impact of alkaline site quantity and intensity on catalytic activity.
Shuangyan ZI +6 more
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Role of defects in determining the magnetic ground state of ytterbium titanate
Nature Communications, 2019 Exploring the role of structural defect is essential to understand the exotic quantum spin phenoma in rare earth pyrochlores. Here the authors show oxygen vacancies can stabilise the spin liquid phase and reveal the ferromagnetic ground state when oxygen
D. F. Bowman +13 more
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Advanced Functional Materials, EarlyView.A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni +10 more
wiley +1 more source
Advanced Functional Materials, EarlyView.An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone +11 more
wiley +1 more source
Oxygen vacancy mediated bismuth-based photocatalysts
Advanced Powder MaterialsSunlight-driven photocatalysis, which can produce clean fuels and mitigate environmental pollution, has received extensive research attention due to its potential for addressing both energy shortages and environmental crises. Bismuth (Bi)-based photocatalysts with broad spectrum solar-light absorption and tunable structures, exhibit promising ...
Jiaqi Tian +5 more
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Advanced Functional Materials, EarlyView.Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth +8 more
wiley +1 more source