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Article Navigation >  Green Energy&Environment  > 2017  >  2(2): 151-159
Fenglei Lyu, Qingfa Wang, Han Zhu, Mingliang Du, Li Wang, Xiangwen Zhang. A host-guest approach to fabricate metallic cobalt nanoparticles embedded in silk-derived N-doped carbon fibers for efficient hydrogen evolution. Green Energy&Environment, 2017, 2(2): 151-159. doi: 10.1016/j.gee.2017.01.007
Citation: Fenglei Lyu, Qingfa Wang, Han Zhu, Mingliang Du, Li Wang, Xiangwen Zhang. A host-guest approach to fabricate metallic cobalt nanoparticles embedded in silk-derived N-doped carbon fibers for efficient hydrogen evolution. Green Energy&Environment, 2017, 2(2): 151-159. doi: 10.1016/j.gee.2017.01.007
shu

A host-guest approach to fabricate metallic cobalt nanoparticles embedded in silk-derived N-doped carbon fibers for efficient hydrogen evolution

doi: 10.1016/j.gee.2017.01.007
  • a.

    Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 135 Yaguan Road, Tianjin 300072, China

  • b.

    Department of Materials Engineering, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China

More Information
  • Corresponding author: E-mail address: qfwang@tju.edu.cn (Qingfa Wang); E-mail address: zhuhanfj@zstu.edu.cn (Han Zhu)
  • Received date 05 December 2016, Accepted date 28 January 2017, RevRecd date 20 January 2017, Available online 03 February 2017, Publish date 30 April 2017,
    Abstract
  • Hydrogen evolution reaction (HER) plays a key role in generating clean and renewable energy. As the most effective HER electrocatalysts, Pt group catalysts suffer from severe problems such as high price and scarcity. It is highly desirable to design and synthesize sustainable HER electrocatalysts to replace the Pt group catalysts. Due to their low cost, high abundance and high activities, cobalt-incorporated N-doped nanocarbon hybrids are promising candidate electrocatalysts for HER. In this report, we demonstrated a robust and eco-friendly host-guest approach to fabricate metallic cobalt nanoparticles embedded in N-doped carbon fibers derived from natural silk fibers. Benefiting from the one-dimensional nanostructure, the well-dispersed metallic cobalt nanoparticles and the N-doped thin graphitized carbon layer coating, the best Co-based electrocatalyst manifests low overpotential (61 mV@10 mA/cm2) HER activity that is comparable with commercial 20% Pt/C, and good stability in acid. Our findings provide a novel and unique route to explore high-performance noble-metal-free HER electrocatalysts.

     

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