Participation of the unstable lattice oxygen of cation-exchanged δ-MnO<sub>2</sub> in the water oxidation reaction

Ham, Kahyun; Kang, Sinwoo; Kim, Yeongin; Lee, Youjin; Kim, Young-Dok; Lee, Jaeyoung

doi:10.1039/d3ta02969g

J. Mater. Chem. A

2023

DOI: 10.1039/d3ta02969g

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Participation of the unstable lattice oxygen of cation-exchanged δ-MnO₂ in the water oxidation reaction

Kahyun Ham,

Sinwoo Kang,

Yeongin Kim

et al.

Abstract: Among 3d transition metal oxides, Mn oxides function as electrocatalysts for the oxygen evolution reaction (OER) in alkaline media. At the OER potential, some Mn oxides are oxidized to a...

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Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

Zhao,

Yang,

et al. 2024

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Oxygen evolution reaction (OER) is a widely employed half‐electrode reaction in oxygen electrochemistry, in applications such as hydrogen evolution, carbon dioxide reduction, ammonia synthesis, and electrocatalytic hydrogenation. Unfortunately, its slow kinetics limits the commercialization of such applications. It is therefore highly imperative to develop highly robust electrocatalysts with high activity, long‐term durability, and low noble‐metal contents. Previously intensive efforts have been made to introduce the advancements on developing non‐precious transition metal electrocatalysts and their OER mechanisms. Electronic structure tuning is one of the most effective and interesting ways to boost OER activity and spin angular momentum is an intrinsic property of the electron. Therefore, modulation on the spin states and the magnetic properties of the electrocatalyst enables the changes on energy associated with interacting electron clouds with radical absorbance, affecting the OER activity and stability. Given that few review efforts have been made on this topic, in this review, the‐state‐of‐the‐art research progress on spin‐dependent effects in OER will be briefed. Spin engineering strategies, such as strain, crystal surface engineering, crystal doping, etc., will be introduced. The related mechanism for spin manipulation to boost OER activity will also be discussed. Finally, the challenges and prospects for the development of spin catalysis are presented. This review aims to highlight the significance of spin engineering in breaking the bottleneck of electrocatalysis and promoting the practical application of high‐efficiency electrocatalysts.

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Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

Zhao,

Yang,

et al. 2024

Small

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Participation of the unstable lattice oxygen of cation-exchanged δ-MnO₂ in the water oxidation reaction

Abstract: Among 3d transition metal oxides, Mn oxides function as electrocatalysts for the oxygen evolution reaction (OER) in alkaline media. At the OER potential, some Mn oxides are oxidized to a...

Cited by 1 publication

References 65 publications

Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

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Participation of the unstable lattice oxygen of cation-exchanged δ-MnO2 in the water oxidation reaction

Abstract: Among 3d transition metal oxides, Mn oxides function as electrocatalysts for the oxygen evolution reaction (OER) in alkaline media. At the OER potential, some Mn oxides are oxidized to a...

Cited by 1 publication

References 65 publications

Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

Recent Advancements on Spin Engineering Strategies for Highly Efficient Electrocatalytic Oxygen Evolution Reactions

Contact Info

Product

Resources

About

Participation of the unstable lattice oxygen of cation-exchanged δ-MnO₂ in the water oxidation reaction