Understanding the Catalytic Kinetics of Polysulfide Redox Reactions on Transition Metal Compounds in Li–S Batteries

ACS Nano, Journal Year: 2022, Volume and Issue: 16(10), P. 15734 - 15759

Published: Oct. 12, 2022

Because of their high energy density, low cost, and environmental friendliness, lithium–sulfur (Li–S) batteries are one the potential candidates for next-generation energy-storage devices. However, they have been troubled by sluggish reaction kinetics insoluble Li2S product capacity degradation because severe shuttle effect polysulfides. These problems overcome introducing transition metal compounds (TMCs) as catalysts into interlayer modified separator or sulfur host. This review first introduces mechanism redox reactions. The methods studying TMC in Li–S provided. Then, recent advances TMCs (such oxides, sulfides, selenides, nitrides, phosphides, carbides, borides, heterostructures) some helpful design modulation strategies highlighted summarized. At last, future opportunities toward presented.

Language: Английский

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Designing a Built-In Electric Field for Efficient Energy Electrocatalysis

ACS Nano, Journal Year: 2022, Volume and Issue: 16(12), P. 19959 - 19979

Published: Dec. 15, 2022

To utilize intermittent renewable energy as well achieve the goals of peak carbon dioxide emissions and neutrality, various electrocatalytic devices have been developed. However, reactions, e.g., hydrogen evolution reaction/oxygen reaction in overall water splitting, polysulfide conversion lithium–sulfur batteries, formation/decomposition lithium peroxide lithium–oxygen nitrate reduction to degrade sewage, suffer from sluggish kinetics caused by multielectron transfer processes. Owing merits accelerated charge transport, optimized adsorption/desorption intermediates, raised conductivity, regulation microenvironment, ease combine with geometric characteristics, built-in electric field (BIEF) is expected overcome above problems. Here, we give a Review about very recent progress BIEF for efficient electrocatalysis. First, construction strategies characterization methods (qualitative quantitative analysis) are summarized. Then, up-to-date overviews engineering electrocatalysis, attention on electron structure optimization microenvironment modulation, analyzed discussed detail. In end, challenges perspectives proposed. This gives deep understanding design electrocatalysts next-generation storage devices.

Language: Английский

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Innovative strategies in design of transition metal-based catalysts for large-current-density alkaline water/seawater electrolysis

Materials Today Physics, Journal Year: 2022, Volume and Issue: 26, P. 100727 - 100727

Published: May 21, 2022

Language: Английский

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A review of hetero-structured Ni-based active catalysts for urea electrolysis

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(17), P. 9308 - 9326

Published: Jan. 1, 2022

Hetero-structured Ni-based active catalysts for urea electrolysis were reviewed, and challenges faced the integration of components to fully make use their strengths up each other's weaknesses.

Language: Английский

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Ni3S2-embedded NiFe LDH porous nanosheets with abundant heterointerfaces for high-current water electrolysis

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 442, P. 136105 - 136105

Published: April 1, 2022

Language: Английский

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Metal nitrides for seawater electrolysis

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 53(1), P. 163 - 203

Published: Nov. 29, 2023

The current strategies and basic mechanisms of metal nitrides for hydrogen production from seawater are reviewed.

Language: Английский

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Atomic manganese coordinated to nitrogen and sulfur for oxygen evolution

Nano Research, Journal Year: 2022, Volume and Issue: 15(7), P. 6019 - 6025

Published: April 25, 2022

Language: Английский

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Core–shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation

Chinese Chemical Letters, Journal Year: 2023, Volume and Issue: 35(8), P. 109181 - 109181

Published: Oct. 11, 2023

Language: Английский

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Improved OER catalytic performance of NiFe-LDH with hydrothermal carbonization microspheres

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 941, P. 168994 - 168994

Published: Jan. 21, 2023

Language: Английский

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Highly Reversible Zinc‐Air Batteries at −40 °C Enabled by Anion‐Mediated Biomimetic Fat

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(2)

Published: Sept. 24, 2023

Abstract The wide application of portable electrical equipment, aerial vehicles, smart robotics, etc. has boosted the development advanced batteries with safety, high energy density, and environmental adaptability. Inspired by fat layer on animal bodies, biomimetic is constructed as electrolytes solid‐state zinc‐air to achieve excellent cycling performance at low temperatures. Via tailored anion‐H 2 O interaction, antifreezing gel electrolytes, multi‐performance interface compatibility, temperature adaptability, stable power supply simultaneously, build robust Zn|electrolyte interface, thus promoting uniform interfacial electric fields Zn deposition. Excellent long‐term cyclability 120 h a current density 50 mA cm −2 are exhibited 25 °C. Moreover, −40 °C, record‐long life 205 large 10 achieved.

Language: Английский

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