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Systematic design of superaerophobic nanotube-array electrode comprised of transition-metal sulfides for overall water splitting

Author

Listed:
  • Haoyi Li

    (Tsinghua University)

  • Shuangming Chen

    (University of Science and Technology of China)

  • Ying Zhang

    (Beijing University of Chemical Technology)

  • Qinghua Zhang

    (Beijing National Laboratory for Condensed Matter Physics)

  • Xiaofan Jia

    (University of Virginia)

  • Qi Zhang

    (Tsinghua University)

  • Lin Gu

    (Beijing National Laboratory for Condensed Matter Physics)

  • Xiaoming Sun

    (Beijing University of Chemical Technology)

  • Li Song

    (University of Science and Technology of China)

  • Xun Wang

    (Tsinghua University)

Abstract

Great attention has been focused on the design of electrocatalysts to enable electrochemical water splitting—a technology that allows energy derived from renewable resources to be stored in readily accessible and non-polluting chemical fuels. Herein we report a bifunctional nanotube-array electrode for water splitting in alkaline electrolyte. The electrode requires the overpotentials of 58 mV and 184 mV for hydrogen and oxygen evolution reactions respectively, meanwhile maintaining remarkable long-term durability. The prominent performance is due to the systematic optimization of chemical composition and geometric structure principally—that is, abundant electrocatalytic active sites, excellent conductivity of metallic 1T’ MoS2, synergistic effects among iron, cobalt, nickel ions, and the superaerophobicity of electrode surface for fast mass transfer. The electrode is also demonstrated to function as anode and cathode, simultaneously, delivering 10 mA cm−2 at a cell voltage of 1.429 V. Our results demonstrate substantial improvement in the design of high-efficiency electrodes for water electrolysis.

Suggested Citation

  • Haoyi Li & Shuangming Chen & Ying Zhang & Qinghua Zhang & Xiaofan Jia & Qi Zhang & Lin Gu & Xiaoming Sun & Li Song & Xun Wang, 2018. "Systematic design of superaerophobic nanotube-array electrode comprised of transition-metal sulfides for overall water splitting," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04888-0
    DOI: 10.1038/s41467-018-04888-0
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    Cited by:

    1. Yang Hu & Yao Zheng & Jing Jin & Yantao Wang & Yong Peng & Jie Yin & Wei Shen & Yichao Hou & Liu Zhu & Li An & Min Lu & Pinxian Xi & Chun-Hua Yan, 2023. "Understanding the sulphur-oxygen exchange process of metal sulphides prior to oxygen evolution reaction," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    2. Libo Zhu & Jian Huang & Ge Meng & Tiantian Wu & Chang Chen & Han Tian & Yafeng Chen & Fantao Kong & Ziwei Chang & Xiangzhi Cui & Jianlin Shi, 2023. "Active site recovery and N-N bond breakage during hydrazine oxidation boosting the electrochemical hydrogen production," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    3. Liang, Dandan & Zhang, Lijuan & He, Weihua & Li, Chao & Liu, Junfeng & Liu, Shaoqin & Lee, Hyung-Sool & Feng, Yujie, 2020. "Efficient hydrogen recovery with CoP-NF as cathode in microbial electrolysis cells," Applied Energy, Elsevier, vol. 264(C).
    4. Yang, Yang & Li, Jun & Yang, Yingrui & Lan, Linghan & Liu, Run & Fu, Qian & Zhang, Liang & Liao, Qiang & Zhu, Xun, 2022. "Gradient porous electrode-inducing bubble splitting for highly efficient hydrogen evolution," Applied Energy, Elsevier, vol. 307(C).
    5. Darband, Ghasem Barati & Aliofkhazraei, Mahmood & Shanmugam, Sangaraju, 2019. "Recent advances in methods and technologies for enhancing bubble detachment during electrochemical water splitting," Renewable and Sustainable Energy Reviews, Elsevier, vol. 114(C), pages 1-1.
    6. Xin Kang & Fengning Yang & Zhiyuan Zhang & Heming Liu & Shiyu Ge & Shuqi Hu & Shaohai Li & Yuting Luo & Qiangmin Yu & Zhibo Liu & Qiang Wang & Wencai Ren & Chenghua Sun & Hui-Ming Cheng & Bilu Liu, 2023. "A corrosion-resistant RuMoNi catalyst for efficient and long-lasting seawater oxidation and anion exchange membrane electrolyzer," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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