多层级孔结构氮掺杂硫化镍的电化学制备及高效产氢研究  

Electrochemical preparation of hierarchical porous nitrogen doped Ni_(3)S_(2)for efficient hydrogen evolution

作　　者：徐长福 张珍 林鹏 张京涛 陈颖 Xu Changfu;Zhang Zhen;Lin Peng;Zhang Jingtao;Chen Ying(School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,Guangdong,China;Guangdong Construction Materials Research Institute Co.,Ltd.,Guangzhou 510160,Guangdong,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006 [2]广东省建筑材料研究院有限公司,广东广州510160

出　　处：《工业催化》2023年第9期34-41,共8页Industrial Catalysis

基　　金：国家自然科学基金项目(51602353);广州市荔湾区科技计划项目(202201059)。

摘　　要：利用简易方法制备同时具有丰富活性位点和优异本征活性的硫化镍电催化剂以实现高效电解水产氢对于可持续的氢能经济至关重要。利用简单两步电化学沉积法在泡沫镍基底上构建出一种新型的具有多层级孔结构的氮掺杂硫化镍电催化剂(Ni-S-N/Ni/NF)。该Ni-S-N/Ni/NF催化剂不仅拥有大量活性位点并且展现出增强的本征活性,在1 mol·L^(-1)氢氧化钾电解液中表现出优异的析氢性能,仅需84 mV过电位即可实现10 mA·cm^(-2)的电流密度。该工作有望为高性能硫化镍催化剂的制备提供有益借鉴。The preparation of nickel sulfide electrocatalysts with abundant active sites and excellent intrinsic activity by simple methods toward efficient hydrogen production is crucial for sustainable hydrogen energy economy.In this study,we used a simple two-step electrochemical deposition method to construct a novel nitrogen doped nickel sulfide electrocatalyst(named Ni-S-N/Ni/NF)with multi-level pore structure on nickel foam used as substrate.The Ni-S-N/Ni/NF catalyst not only has a large number of active sites,but also exhibits enhanced intrinsic activity and excellent hydrogen evolution performance in 1 M KOH electrolyte,achieves current density of 10 mA·cm^(-2)under overvoltage of only 84 mV.This work is expected to provide valuable reference for the preparation of high-performance nickel sulfide catalysts.

关 键 词：催化化学 电催化剂 硫化物 制氢 泡沫镍 

分 类 号：TQ426.6[化学工程] O646.5[理学—物理化学]