Local compressive strain-induced anti-corrosion over isolated Ru-decorated Co3O4 for efficient acidic oxygen evolution

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Nature Communications Pub Date : 2024-11-04 DOI:10.1038/s41467-024-53763-8

Shouwei Zuo, Zhi-Peng Wu, Deting Xu, Rafia Ahmad, Lirong Zheng, Jing Zhang, Lina Zhao, Wenhuan Huang, Hassan Al Qahtani, Yu Han, Luigi Cavallo, Huabin Zhang

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Abstract

Enhancing corrosion resistance is essential for developing efficient electrocatalysts for acidic oxygen evolution reaction (OER). Herein, we report the strategic manipulation of the local compressive strain to reinforce the anti-corrosion properties of the non-precious Co₃O₄ support. The incorporation of Ru single atoms, larger in atomic size than Co, into the Co₃O₄ lattice (Ru-Co₃O₄), triggers localized strain compression and lattice distortion on the Co-O lattice. A comprehensive exploration of the correlation between this specific local compressive strain and electrocatalytic performance is conducted through experimental and theoretical analyses. The presence of the localized strain in Ru-Co₃O₄ is confirmed by operando X-ray absorption studies and supported by quantum calculations. This local strain, presented in a shortened Co-O bond length, enhances the anti-corrosion properties of Co₃O₄ by suppressing metal dissolutions. Consequently, Ru-Co₃O₄ shows satisfactory stability, maintaining OER for over 400 hours at 30 mA cm⁻² with minimal decay. This study demonstrates the potential of the local strain effect in fortifying catalyst stability for acidic OER and beyond.

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孤立的 Ru 装饰 Co3O4 上局部压缩应变诱导的抗腐蚀作用，可实现高效的酸性氧演化

增强耐腐蚀性对于开发用于酸性氧进化反应（OER）的高效电催化剂至关重要。在此，我们报告了如何战略性地操纵局部压缩应变来增强非贵金属 Co3O4 支持物的抗腐蚀性能。在 Co3O4 晶格（Ru-Co3O4）中加入原子尺寸大于 Co 的 Ru 单原子，会引发 Co-O 晶格的局部应变压缩和晶格畸变。通过实验和理论分析，我们全面探讨了这种特定局部压缩应变与电催化性能之间的相关性。Ru-Co3O4 中局部应变的存在得到了操作性 X 射线吸收研究的证实和量子计算的支持。这种局部应变表现为 Co-O 键长度的缩短，通过抑制金属溶解增强了 Co3O4 的抗腐蚀性能。因此，Ru-Co3O4 表现出令人满意的稳定性，在 30 mA cm-2 电流条件下，其 OER 可维持 400 小时以上，衰减极小。这项研究证明了局部应变效应在增强酸性 OER 及其他催化剂稳定性方面的潜力。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.