Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction as high current density catalysts for Li–O2 batteries

Huang, Renshu; Chen, Jinli; Chen, Xingfa; Yu, Tianqi; Yu, Huyi; Li, Kaien; Li, Bin; Yin, Shibin

doi:10.1016/j.cjsc.2023.100171

Chinese Journal of Structural Chemistry

2023

DOI: 10.1016/j.cjsc.2023.100171

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Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction as high current density catalysts for Li–O2 batteries

Renshu Huang,

Jinli Chen,

Xingfa Chen

et al.

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2024

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Cited by 4 publications

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Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries

Wang,

Fang,

et al. 2024

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Li‐O2 batteries urgently needs high discharge capacity and stable cycling performance, requiring effective and reliable bifunctional catalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Herein, Hovenia acerba Lindl‐like heterostructure composed of cobalt sulfide and tin dioxide supported on carbon substrate (CoS/SnO2@C) is prepared via CO2 laser irradiation technology. The half‐wave potential of CoS/SnO2@C for the ORR is 0.88 V, while the overpotential of the OER at 10 mA cm−2 is as low as 270 mV. The Li‐O2 batteries employing the bifunctional CoS/SnO2@C catalyst displays a high discharge specific capacity of 3332.25 mAh g−1 and long cycling life of 226 cycles. Additionally, theory calculations demonstrate that the construction of heterostructure decreases energy barrier of the rate‐determining step (RDS) for both ORR and OER. Notably, SnO2 behaves as the electronic promoter to optimize the electronic structure of heterostructure interface and triggers charge redistribution of CoS, which weakens the adsorption strength of the *O‐intermediates and allows to break the linear scaling relationship, thus further enhancing the catalytic performance of CoS/SnO2@C. This research furnishes directions for the design of heterogeneous catalysts, highlighting its great potential for application in rechargeable Li‐O2 batteries.

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Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries

Wang,

Fang,

et al. 2024

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Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Yu,

Huang,

Liu

et al. 2024

Chinese Journal of Structural Chemistry

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Mn-modulated Co–N–C oxygen electrocatalysts for robust and temperature-adaptative zinc-air batteries

Ding,

Wang,

Dai

et al. 2024

Chinese Journal of Structural Chemistry

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Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction as high current density catalysts for Li–O2 batteries

Cited by 4 publications

References 44 publications

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries

Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Mn-modulated Co–N–C oxygen electrocatalysts for robust and temperature-adaptative zinc-air batteries

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Synergized oxygen vacancies with Mn2O3@CeO2 heterojunction as high current density catalysts for Li–O2 batteries

Cited by 4 publications

References 44 publications

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO2@C as a Bifunctional Oxygen Catalyst for Li‐O2 Batteries

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO2@C as a Bifunctional Oxygen Catalyst for Li‐O2 Batteries

Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Mn-modulated Co–N–C oxygen electrocatalysts for robust and temperature-adaptative zinc-air batteries

Contact Info

Product

Resources

About

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries

Electronic Promoter Breaks the Linear Scaling Relationship: Ultra‐Rapid High‐Temperature Synthesis of Heterostructured CoS/SnO₂@C as a Bifunctional Oxygen Catalyst for Li‐O₂ Batteries