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Sea urchin-like CoTe-CoP heterostructure catalyst for efficient hydrogen evolution in all-pH range

海胆状CoTe-CoP异质结构催化剂在全pH范围内高效析氢

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  • Special Topic: Advanced Energy Catalytic Materials
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Abstract

The development of robust and pH-adaptable hydrogen evolution reaction (HER) catalysts is of great significance to achieve a mass-scale hydrogen production. The interface engineering is one of the most effective strategies due to its unique properties. Herein, the sea urchin-like heterostructure catalyst CoTe-CoP/NF is constructed successfully. The synergy of CoTe and CoP not only optimizes the electronic structure and exposes more active sites, but also effectively improves the hydrophilicity and aerophobicity of the catalyst. Meanwhile, density functional theory calculations further unveil that the interaction between CoTe and CoP efficiently reduces the dissociation energy barrier of water, and simultaneously enhances H* adsorption. All these results endow CoTe-CoP/NF excellent HER performance and catalytic stability at full pH range. The CoTe-CoP/NF electrode only needs 51, 53, and 75 mV overpotentials at 10 mA cm−2 for HER in acidic, alkaline, and neutral media, respectively. In short, this work provides an interface engineering strategy to construct high-performance HER catalysts in all-pH range.

摘要

研发长效稳定、pH适应性强的析氢反应(HER)催化剂对实现大 规模制氢具有重要意义. 界面工程是研发高效HER催化剂的有效策略 之一. 本文成功构建了海胆状异质结构催化剂CoTe-CoP/NF. CoTe和 CoP的协同作用不仅优化了电子结构、暴露了更多的活性位点, 而且 有效地提高了催化剂的亲水性和疏气性. 密度泛函理论计算表明: CoTe与CoP之间的相互作用有效地降低了水的解离能垒, 同时增强了 对H*的吸附. 这些结果使得CoTe-CoP/NF在整个pH范围内具有优异的 HER性能和催化稳定性. 在酸性、碱性和中性介质中, CoTe-CoP/NF电 极驱动10 mA cm−2的电流密度仅需51、53和75 mV的过电位. 总之, 本 工作为在全pH范围内构建高性能HER催化剂提供了一种界面工程新 策略.

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Acknowledgements

This work is supported by Outstanding Talent Fund from Beijing University of Chemical Technology.

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Author notes

  1. These authors contributed equally to this work.

Authors and Affiliations

  1. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China

    Shaoke Zhu  (朱少柯), Minghui Xing  (邢明辉), Zhankuan Lu  (路站宽), Zelong Qiao  (乔泽龙), Shitao Wang  (王世涛) & Dapeng Cao  (曹达鹏)

  2. Department of Chemical and Biological Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China

    Qinglan Zhao  (赵青蓝) & Minhua Shao  (邵敏华)

  3. Energy Institute, and Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China

    Minhua Shao  (邵敏华)

  4. Qingdao International Academician Park Research Institute, Qingdao, 266000, China

    Jimmy Yun  (甑崇礼)

  5. School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia

    Jimmy Yun  (甑崇礼)

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  1. Shaoke Zhu  (朱少柯)
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  2. Minghui Xing  (邢明辉)
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  6. Qinglan Zhao  (赵青蓝)
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  8. Jimmy Yun  (甑崇礼)
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  9. Dapeng Cao  (曹达鹏)
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Contributions

Author contributions Cao D proposed the original idea and designed the experiment. Zhu S and Xing M performed the experiments. Lu Z and Qiao Z performed the DFT calculations. Wang S, Zhao Q, Shao M and Yun J discussed and analyzed the results. Zhu S, Xing M and Lu Z wrote the first draft. Cao D revised the original manuscript. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Jimmy Yun  (甑崇礼) or Dapeng Cao  (曹达鹏).

Additional information

Supplementary information Experimental details and supporting data are available in the online version of the paper.

Dapeng Cao is a fellow of the Royal Society of Chemistry (FRSC), and a professor and director of the Division of Molecular and Materials Simulation at Beijing University of Chemical Technology (BUCT). He received his PhD degree from BUCT in 2002, and was a research scientist at NanoMaterials Technology Pte. Ltd. in Singapore (2002–2003), and a postdoctoral researcher at the University of California at Riverside (2003–2005). His research interests are focused on the designed synthesis and applications of energy/catalysis materials and porous materials.

Shaoke Zhu is a master student majoring in materials and chemical engineering at BUCT, supervised by Prof. Dapeng Cao. Her research focuses on the synthesis of catalytic materials for hydrogen evolution and oxygen evolution reactions.

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Zhu, S., Xing, M., Lu, Z. et al. Sea urchin-like CoTe-CoP heterostructure catalyst for efficient hydrogen evolution in all-pH range. Sci. China Mater. (2024). https://doi.org/10.1007/s40843-024-2820-0

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