General synthesis of Pt and Ni co-doped porous carbon nanofibers to boost HER performance in both acidic and alkaline solutions  

作　　者：Jiaqi Xu Mengxiao Zhong Na Song Ce Wang Xiaofeng Lu 

机构地区：[1]Alan G.MacDiarmid Institute,College of Chemistry,Jilin University,Changchun 130012,China

出　　处：《Chinese Chemical Letters》2023年第2期263-267,共5页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 5197307, 219875084);the Project of the Education Department of Jilin Province, China (No. JJKH20211047KJ)。

摘　　要：It is essential to develop efficient electrocatalysts to generate hydrogen from water electrolysis for hydrogen economy. In this work, platinum(Pt) and nickel(Ni) co-doped porous carbon nanofibers(Pt/NiPCNFs) with low Pt content were prepared via an electrospinning, carbonization and galvanic replacement reaction. Because of the high electrical conductivity, abundant electrochemical active sites and synergistic effect between Pt and Ni nanoparticles, the optimized Pt/Ni-PCNFs catalyst shows an excellent HER activity with overpotentials of 20 m V in 0.5 mol/L H_(2)SO_(4) and 46 m V in 1 mol/L KOH at a current density of10 m A/cm^(2). Furthermore, over 35-h long-term stability has been achieved without significant attenuation.This work provides a simple route to prepare highly efficient electrocatalysts for water splitting and has great prospects in the field of renewable energy.

关 键 词：ELECTROSPINNING PLATINUM Nickel Porous carbon nanofibers Hydrogen evolution reaction 

分 类 号：TQ116.2[化学工程—无机化工] TQ426TQ340.64