期刊
ADVANCED MATERIALS INTERFACES
卷 4, 期 12, 页码 -出版社
WILEY
DOI: 10.1002/admi.201700005
关键词
carbon nanofibers; electrocatalyst; hydrogen evolution reaction; Pt-Cu alloy
资金
- National Natural Science Foundation of China (NSFC) [51373154, 51573166]
- Zhejiang Sci-Tech University
Well-dispersed Pt-Cu alloy nanoparticles (NPs) with a diameter of only approximate to 2 nm encapsulated in carbon nanofibers (CNFs) are synthesized using electrospinning technology followed by a graphitization process in a chemical vapor deposition furnace. Distinctly, even with a small amount of Pt, the Pt-Cu/CNFs-1:2 catalyst possesses outstanding hydrogen evolution reaction (HER) activity, including small overpotential, long-term stability, and a high exchange current density as well as large double layer capacitance (C-dl). The excellent HER performance of the Pt-Cu/CNFs-1:2 catalyst is attributed to the synergistic interaction between Pt and Cu, the uniform distribution of the alloy NPs and the use of CNFs with 3D architectures. This development may provide a simple, efficient, and green synthesis method to design bi- or multimetal alloys for use as the cathode electrocatalysts for the HER or other electrocatalytic devices.
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