Dynamic evolution processes in electrocatalysis: structure evolution, characterization and regulation

Xie, Chao; Chen, Wei; Wang, Yanyong; Yang, Yahui; Wang, Shuangyin

doi:10.1039/d3cs00756a

Chem. Soc. Rev.

2024

DOI: 10.1039/d3cs00756a

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Dynamic evolution processes in electrocatalysis: structure evolution, characterization and regulation

Chao Xie,

Wei Chen,

Yanyong Wang

et al.

Abstract: Dynamic evolution processes in electrocatalysis, including structure evolution of electrocatalysts, characterization methods and regulation strategies for dynamic evolution in electrocatalysis.

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Cited by 2 publications

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Recent advances in bifunctional carbon-based single-atom electrocatalysts for rechargeable zinc–air batteries

Chen,

Wang,

et al. 2025

Green Chem.

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Recent advances in bifunctional carbon-based single-atom electrocatalysts for rechargeable zinc–air batteries

Chen,

Wang,

et al. 2025

Green Chem.

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Assembly and Valence Modulation of Ordered Bimetallic MOFs for Highly Efficient Electrocatalytic Water Oxidation

Wu,

Sun,

Chen

et al. 2024

Molecules

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Metal synergy can enhance the catalytic performance, and a prefabricated solid precursor can guide the ordered embedding, of secondary metal source ions for the rapid synthesis of bimetallic organic frameworks (MM’-MOFs) with a stoichiometric ratio of 1:1. In this paper, Co-MOF-1D containing well-defined binding sites was synthesized by mechanical ball milling, which was used as a template for the induced introduction of Fe ions to successfully assemble the ordered bimetallic Co1Fe1-MOF-74@2 (where @2 denotes template-directed synthesis of MOF-74). Its electrocatalytic performance is superior to that of the conventional one-step-synthesized Co1Fe1-MOF-74@1 (where @1 denotes one-step synthesis of MOF-74), and the ratio of the two metal sources, Co and Fe, is close to 1:1. Meanwhile, the iron valence states (FeII and FeIII) in Co1Fe1-MOF-74@2 were further regulated to obtain the electrocatalytic materials Co1Fe1(II)-MOF-74@2 and Co1Fe1(III)-MOF-74@2. The electrochemical performance test results confirm that Co1Fe1(II)-MOF-74@2 regulated by valence state has a better catalytic performance than Co1Fe1(III)-MOF-74@2 in the oxygen evolution reaction (OER) process. This phenomenon is related to the gradual increase in the valence state of Fe ions in Co1Fe1(II)-MOF-74@2, which promotes the continuous improvement in the performance of the MOF before reaching the optimal steady state and makes the OER performance reach the optimum when the FeII/FeIII mixed-valence state reaches a certain proportion. This provides a new idea for the directed synthesis and optimization of highly efficient catalysts.

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Dynamic evolution processes in electrocatalysis: structure evolution, characterization and regulation

Abstract: Dynamic evolution processes in electrocatalysis, including structure evolution of electrocatalysts, characterization methods and regulation strategies for dynamic evolution in electrocatalysis.

Cited by 2 publications

References 235 publications

Recent advances in bifunctional carbon-based single-atom electrocatalysts for rechargeable zinc–air batteries

Recent advances in bifunctional carbon-based single-atom electrocatalysts for rechargeable zinc–air batteries

Assembly and Valence Modulation of Ordered Bimetallic MOFs for Highly Efficient Electrocatalytic Water Oxidation

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