首页|In situ construction of Ni-based N doped porous carbon induced by sulfurization or phosphorization for synergistically enhanced photo/electrocatalytic hydrogen evolution

In situ construction of Ni-based N doped porous carbon induced by sulfurization or phosphorization for synergistically enhanced photo/electrocatalytic hydrogen evolution

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Herein,two novel 3D porous Ni-based N doped carbon heterojunctions(NiS2@NC or Ni2P@NC)were suc-cessfully prepared through in situ carbonization and sulfurization or phosphorization by using flower-like Ni-based zeolite imidazolium framework as a precursor.Physiochemical and photoelectrochemical prop-erties were investigated to explore photoinduced charge separation and transfer in the heterojunction.Meanwhile,the photo/electrocatalytic hydrogen evolution performances were evaluated systematically.In contrast to the controlled Ni-ZIF and Ni@NC composites,the expected flower-like NiS2@NC compounds show significantly enhanced photo/electrocatalytic hydrogen evolution performances,which is 13.8 times that of Ni-ZIF and 1.8 times that of Ni@NC.Furthermore,a phosphorus-decorated composite(Ni2P@NC)was synthesized for better comparison,which also displays apparently improved photo/electrocatalytic hydrogen evolution activities.The findings present that the synergistic effect of S doping and semicon-ducting NiS2 formation take responsibility for the enhancement of H2 generation over the NiS2@NC hy-brids.This work can provide a new strategy to construct efficient ZIFs-based photo/electrocatalysts with high performance of H2 production.

Solar utilizationZeolite imidazolium frameworkCarbonDopingHeterojunctionHydrogen evolution

Desheng Xu、J.Ke、Hengyu Liu、Yafan Bi、Jie Liu

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School of Chemistry()neering,Wuhan Institute of Technology,Wuhan 430205,China

Department of Envir()gineering,North China Electric Power University,Baoding 071003,China

Knowledge Innovation Program of Wuhan-Shuguang ProjectScience Research Foundation of Wuhan Institute of TechnologyInnovative Team program of Natural Science Foundation of Hubei ProvinceNatural Science Foundation of Hebei ProvinceFundamental Research Universities

2022020801020366K2019392021CFA032E20225020712022MS110

2024

10.1016/j.jmst.2023.09.015

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.179(12)
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