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Zinc ion induced three-dimensional Co9S8 nano-neuron network for efficient hydrogen evolution

Author

Listed:
  • Dong, Bin
  • Xie, Jing-Yi
  • Wang, Nan
  • Gao, Wen-Kun
  • Ma, Yu
  • Chen, Tian-Shu
  • Yan, Xin-Tong
  • Li, Qing-Zhong
  • Zhou, Yu-Lu
  • Chai, Yong-Ming

Abstract

As the cost-effective and nontoxic alternative for hydrogen evolution reaction (HER), Co9S8 has attracted much attention. This paper explores the regulation of Zn doping impacted the unique nanostructure and electrocatalytic performance on Co9S8. Herein, utilizing copper foam (CF) as substrate, a series of different nanostructure of (Zn-)Co9S8@CF has been synthesized by accurately varying the ratio of Zn2+ to Co2+. Compared with aggregated pure Co9S8 and other different ratios contrast samples, Zn–Co9S8@CF-(1-1) with a zinc to cobalt ratio of 1 possesses highly dispersity which can be attributed to the novel nano-neuron network structure. The electrochemical measurements for HER demonstrate that Zn–Co9S8@CF-(1-1) not only reveals superior activity with small overpotentials to achieve a current density of 10 mA cm−2 in acidic (278 mV) and alkaline (273 mV) media, but also exhibits long-time durability in the solution with a wide range of pH. The excellent performance of Zn–Co9S8@CF-(1-1) can be attributed to the unique reticular structure which can facilitate exposure of numerous active sites and favorable long-term stability. The substrate of three-dimensional CF can provide the remarkable conductivity. This work provides a precise and effective approach to regulate three-dimensional nanostructure of Zn-doped electrocatalysts for HER.

Suggested Citation

  • Dong, Bin & Xie, Jing-Yi & Wang, Nan & Gao, Wen-Kun & Ma, Yu & Chen, Tian-Shu & Yan, Xin-Tong & Li, Qing-Zhong & Zhou, Yu-Lu & Chai, Yong-Ming, 2020. "Zinc ion induced three-dimensional Co9S8 nano-neuron network for efficient hydrogen evolution," Renewable Energy, Elsevier, vol. 157(C), pages 415-423.
    • Handle: RePEc:eee:renene:v:157:y:2020:i:c:p:415-423
    DOI: 10.1016/j.renene.2020.05.057
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    References listed on IDEAS

    as
    1. Yan, Kai-Li & Chi, Jing-Qi & Xie, Jing-Yi & Dong, Bin & Liu, Zi-Zhang & Gao, Wen-Kun & Lin, Jia-Hui & Chai, Yong-Ming & Liu, Chen-Guang, 2018. "Mesoporous Ag-doped Co3O4 nanowire arrays supported on FTO as efficient electrocatalysts for oxygen evolution reaction in acidic media," Renewable Energy, Elsevier, vol. 119(C), pages 54-61.
    2. Qi Lu & Gregory S. Hutchings & Weiting Yu & Yang Zhou & Robert V. Forest & Runzhe Tao & Jonathan Rosen & Bryan T. Yonemoto & Zeyuan Cao & Haimei Zheng & John Q. Xiao & Feng Jiao & Jingguang G. Chen, 2015. "Highly porous non-precious bimetallic electrocatalysts for efficient hydrogen evolution," Nature Communications, Nature, vol. 6(1), pages 1-8, May.
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    Cited by:

    1. Jin, Zhiliang & Jiang, Xudong & Liu, Yanan, 2022. "Graphdiyne(CnH2n-2) based NiS S-scheme heterojunction for efficient photocatalytic hydrogen production," Renewable Energy, Elsevier, vol. 201(P1), pages 854-863.
    2. Guo, Xin & Fan, Linlin & Liu, Yafeng & Jin, Zhiliang, 2024. "In situ XPS confirmed the efficient charge transfer of the CdS/GDY/ZnMoO4 heterojunction based on graphdiyne(CnH2n-2) for photocatalytic hydrogen production," Renewable Energy, Elsevier, vol. 222(C).
    3. Zhao, Meng-Jie & Li, Er-Mei & Deng, Ning & Hu, Yingjie & Li, Chao-Xiong & Li, Bing & Li, Fang & Guo, Zhen-Guo & He, Jian-Bo, 2022. "Indirect electrodeposition of a NiMo@Ni(OH)2MoOx composite catalyst for superior hydrogen production in acidic and alkaline electrolytes," Renewable Energy, Elsevier, vol. 191(C), pages 370-379.

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