分级多孔木材衍生炭基电催化剂的构筑及其析氢性能研究

曹欣雨; 李佳蔚; 李镰岑; 张如玉; 许以昊; 路家兴; 王国容; 姚远; 钱光付

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Study on Fabrication of Wood-derived Carbon Electrocatalysts with Hierarchical Porous Structure and Its Hydrogen Evolution Performance

Received:April 10, 2026 Revised:June 03, 2026

DOI：10.11981/j.issn.1000-6842.2026.03.207

Key Words:wood-derived carbon;hierarchical porous structure;templating-activation synergistic pore-formation;core-shell structure;hydrogen evolution reaction

Fund Project:

广西自然科学基金

2025GXNSFAA069629

2024GXNSFBA010252

广西清洁纸浆与造纸及污染控制重点实验室开放项目

2022GXZZKF75

广西自然科学基金（2025GXNSFAA069629，2024GXNSFBA010252）；广西清洁纸浆与造纸及污染控制重点实验室开放项目（2022GXZZKF75）。

Author Name	Affiliation	Postcode
Cao Xinyu^*	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Li Jiawei	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Li Liancen	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Zhang Ruyu	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Xu Yihao	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Lu Jiaxing	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Wang Guorong	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Yao Yuan	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004
Qian Guangfu^*	1School of Light Industry and Food Engineering， Guangxi University， Nanning， Guangxi Zhuang Autonomous Region， 530004 2Guangxi Key Lab of Clean Pulp & Papermaking and Pollution Control， Nanning， Guangxi Zhuang Autonomous Region， 530004	530004

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Abstract:

In this study， using natural pine wood as the carbon source， a one-step pore-formation strategy combining ZnCl₂ templating with KOH activation was employed to construct a hierarchical porous wood-derived carbon electrocatalyst （Ni@NiCo-PCW） featuring a nickel （Ni） core and a nickel-cobalt （NiCo） shell structure. The results demonstrated that ZnCl₂ solution molar concentration played a key role in regulating the hierarchical porous structure. Under the optimum pore-forming conditions of ZnCl₂ solution with molar concentration of 0.5 mol/L and KOH solution with molar concentration of 0.1 mol/L， a well-connected hierarchical porous system of macro-， meso-， and micro-pores was successfully constructed. Owing to the ample exposure of active sites resulting from the high specific surface area， the rapid gas-liquid mass transfer rate afforded by the hierarchical porous structure， and the uniformly distributed catalyst active sites， Ni@NiCo-PCW-0.5 fabricated under this condition exhibited outstanding HER activity in both alkaline and neutral electrolytes， with potentials of only -14.11 mV and -39.03 mV at a current density of -10 mA/cm²， respectively. Meanwhile， Ni@NiCo-PCW-0.5 could operate stably for 168 h at current densities of -1 000 mA/cm² （alkaline electrolyte） and -200 mA/cm² （neutral electrolyte）.

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