Oxygen Vacancy‐Mediated Growth of Amorphous Discharge Products toward an Ultrawide Band Light‐Assisted Li–O2 Batteries
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DOI: 10.1002/adma.202107826
Abstract: Photoassisted electrochemical reaction is regarded as an effective approach to reduce the overpotential of lithium–oxygen (Li–O2) batteries. However, the achievement of both broadband absorption and long term battery cycling stability are still a formidable challenge.… read more here.
Keywords: oxygen vacancy; band light; discharge; oxygen ... See more keywords
Isolated‐Oxygen‐Vacancy Hardening in Lead‐Free Piezoelectrics
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DOI: 10.1002/adma.202202558
Abstract: Defect engineering is a well‐established approach to customize the functionalities of perovskite oxides. In demanding high‐power applications of piezoelectric materials, acceptor doping serves as the state‐of‐the‐art hardening approach, but inevitably deteriorates the electromechanical properties. Here,… read more here.
Keywords: oxygen vacancy; lead free; hardening lead; vacancy hardening ... See more keywords
Oxygen-Vacancy-Rich Piezoelectric BiO2-x Nanosheets for Augmented Piezocatalytic, Sonothermal and Enzymatic Therapies.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced materials"
DOI: 10.1002/adma.202300648
Abstract: Piezocatalytic therapy is a new-emerging reactive oxygen species (ROS) enabled therapeutic strategy that relies on built-in electric field and energy band bending of piezoelectric materials activated by ultrasound irradiation. Despite becoming a hot topic, material… read more here.
Keywords: oxygen vacancy; vacancy rich; bio2 nss; bio2 ... See more keywords
Oxygen Vacancy–Enhanced Electrocatalytic Performances of TiO2 Nanosheets toward N2 Reduction Reaction
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DOI: 10.1002/admi.201901034
Abstract: Electrocatalysts play vital roles in the enhancement of the catalytic performances of the reduction reaction from N2 to NH3 at ambient conditions. This study reports oxygen vacancy–contained TiO2 nanosheets, which are explored as efficient electrocatalysts… read more here.
Keywords: tio2 nanosheets; reduction reaction; oxygen vacancy;
Synthesis of Nitrogen‐Doped KMn8O16 with Oxygen Vacancy for Stable Zinc‐Ion Batteries
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DOI: 10.1002/advs.202106067
Abstract: The development of MnO2 as a cathode for aqueous zinc‐ion batteries (AZIBs) is severely limited by the low intrinsic electrical conductivity and unstable crystal structure. Herein, a multifunctional modification strategy is proposed to construct N‐doped… read more here.
Keywords: vacancy; oxygen vacancy; ion batteries; zinc ion ... See more keywords
An Efficient Approach Based on Tuned Nanoionics to Maximize Memory Characteristics in Ag‐Based Devices
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DOI: 10.1002/aelm.202100022
Abstract: This study demonstrates a systematic approach to modulate the oxygen vacancy concentration within a Ag/HfO2/Pt based resistive switching device and control the volatile and nonvolatile switching through tuned nanoionics. A synergistic effect of oxygen vacancy… read more here.
Keywords: oxygen vacancy; tuned nanoionics; memory; approach ... See more keywords
Oxygen‐vacancy‐rich hydrated bimetallic chloride for supercapacitor cathode with remarkable enhanced performance
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Energy Research"
DOI: 10.1002/er.5986
Abstract: In this study, a series of nickel/vanadium composites were acquired via a simple in situ growth strategy with the sodium chloride as a regulator. The phase, component, and electrochemical energy storage behavior of the as‐prepared… read more here.
Keywords: chloride; supercapacitor; oxygen vacancy; nvc 8ov ... See more keywords
Rationalizing the Effect of Oxygen Vacancy on Oxygen Electrocatalysis in Li-O2 Battery.
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DOI: 10.1002/smll.202001812
Abstract: Albeit the effectiveness of surface oxygen vacancy in improving oxygen redox reactions in Li-O2 battery, the underpinning reason behind this improvement remains ambiguous. Herein, the concentration of oxygen vacancy in spinel NiCo2 O4 is first… read more here.
Keywords: rationalizing effect; oxygen; oxygen vacancy; battery ... See more keywords
Surface Oxygen Vacancy Inducing Li-Ion-Conducting Percolation Network in Composite Solid Electrolytes for All-Solid-State Lithium-Metal Batteries.
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DOI: 10.1002/smll.202207223
Abstract: Composite solid electrolytes (CSEs) are newly emerging components for all-solid-state Li-metal batteries owing to their excellent processability and compatibility with the electrodes. Moreover, the ionic conductivity of the CSEs is one order of magnitude higher… read more here.
Keywords: percolation network; oxygen vacancy; ion;
Selective CO2 Electroreduction to Formate on Polypyrrole-Modified Oxygen Vacancy-Rich Bi2 O3 Nanosheet Precatalysts by Local Microenvironment Modulation.
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DOI: 10.1002/smll.202300001
Abstract: Challenges remain in the development of highly efficient catalysts for selective electrochemical transformation of carbon dioxide (CO2 ) to high-valued hydrocarbons. In this study, oxygen vacancy-rich Bi2 O3 nanosheets coated with polypyrrole (Bi2 O3 @PPy… read more here.
Keywords: oxygen vacancy; microenvironment; bi2; formate ... See more keywords
Oxygen Vacancy Induced Boosted Visible‐Light Driven Photocatalytic CO2 Reduction and Electrochemical Water Oxidation Over CuCo‐ZIF@Fe2O3@CC Architecture
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DOI: 10.1002/smtd.202200308
Abstract: Herein, the obtained Cu0.5Co0.5‐ZIF@Fe2O3@CC‐150 heterojunction (termed as Cu1‐xCox‐ZFC‐150) showed high hydrogen and oxygen evolution reaction (HER and OER) activities with low overpotential small Tafel slope. When employed to be the bifunctional anode and cathode, they… read more here.
Keywords: co2; oxygen vacancy; oxygen; zif fe2o3 ... See more keywords