Citation: Yanqiu LI, Fang ZHAO, Yang YANG, Jing YU. PtRu/N-doped carbon nanofiber: Preparation and hydrogen evolution performance for water electrolysis[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(5): 1003-1014. doi: 10.11862/CJIC.20250238 shu

PtRu/N-doped carbon nanofiber: Preparation and hydrogen evolution performance for water electrolysis

Yanqiu LI ¹ ,
Fang ZHAO ² ,
Yang YANG ² ,
Jing YU ^1,,

1.
College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
2.
Huaneng Yichun Thermal Power Co., Ltd, Yichun, Heilongjiang 153000, China

Corresponding author: Jing YU, jing.yu@hrbeu.edu.cn
Received Date: 18 July 2025
Revised Date: 3 April 2026

Figures(8)

Porous nitrogen-doped carbon nanofibers (PNCNFs) were fabricated via electrospinning. Subsequently, a series of PNCNFs-anchored PtRu alloy materials (PtRu/PNCNFs) was prepared via high-temperature carbonization and reduction. Nitrogen doping in carbon nanofibers introduces numerous hydrophilic groups, which can significantly enhance wettability between the material and the electrolyte and further improve ion transport and overall electrochemical performance. At the same time, PNCNF has a relatively large specific surface area by itself. The presence of a PtRu alloy increases the number of active sites to some extent. In addition, the porous structure formed at high temperatures enables uniform dispersion of the PtRu alloy on the material surface, thereby regulating the material's electronic structure, promoting electron transfer, and enhancing hydrogen evolution reaction (HER) performance. The results showed that PNCNFs treated at 500 ℃ (PtRu/PNCNFS-500) exhibited excellent HER performance in 1 mol·L^-1 KOH and in seawater solutions containing 1 mol·L^-1 KOH. At a current density of 10 mA·cm^-1, the hydrogen-evolution overpotentials of PtRu/PNCNFs-500 were 15.8 and 18.3 mV, respectively, and the Tafel slopes were 20.58 and 20.65 mV·dec^-1, which were much lower than the PNCNFs treated at 300, 400, 600 ℃, and indicated good HER stability.
- electrospinning,
- porous carbon nanofibers,
- platinum-ruthenium alloy,
- electrocatalysis,
- hydrogen evolution reaction
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