Encapsulating Ru doped Co/CO_(2)P nanoparticles into delignified and TEMPO oxidized wood carbon enabling efficient pH-universal hydrogen evolution reaction

作     者：Jiahui Li Peng Huang Zhijie Zhang Cuihua Tian Yu Liao Tai Yang Yan Qing Yiqiang Wu 

作者机构：College of Materials Science and EngineeringCentral South University of Forestry and TechnologyChangsha 410004HunanChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学(英文版))

年 卷 期：2025年第104卷第5期

页      面：452-461页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：financially supported by the National Natural Science Foundation of China(32101452) the Research Foundation of Education Bureau of Hunan Province(22B0283) the Hunan Provincial Natural Science Foundation(2022JJ40865) the Talents Research Funding of Central South University of Forestry and Technology(2021YJ007) the Scientific Innovation Fund for Graduate of Central South University of Forestry and Technology(2024CX02005) 

主　　题：Carbonized wood substrate Delignification TEMPO oxidization Hydrogen evolution reaction DFT calculation 

摘      要：High-performance catalyst is significant for the sustainable hydrogen(H_(2))production by electrocatalytic water *** porous structure and active groups of substrate can promote the interaction of substrate and active metal particles,enabling excellent catalytic properties and ***,the optimization strategy of delignification and 2,2,6,6-tetramethylpyperidine-1-oxyl(TEMPO)oxidization was developed to modify the porous structure and active groups of wood substrate,and Ru doped Co/CO_(2)P(Ru-Co/CO_(2)P)nanoparticles were encapsulated into the optimized wood carbon substrate(Ru-Co/CO_(2)P@TDCW)for the efficient pH-universal hydrogen evolution reaction(HER).The nanopore and carboxyl groups were produced by delignification and TEMPO oxidation,which accelerated the dispersion and deposition of Ru-Co/CO_(2)P *** RuCo alloy and RuCoP nanoparticles were produced with the doping of Ru,and more Ru-Co/CO_(2)P nanoparticles were anchored by the delignified and TEMPO oxidized wood carbon(TDCW).As anticipated,the Ru-Co/CO_(2)P@TDCW catalyst exhibited excellent pH-universal HER activity,and only 16.6,93,and 43 mV of overpotentials were required to deliver the current density of 50 mA cm^(-2)in alkaline,neutral,and acidic electrolytes,outperforming the noble Pt/C/TDCW catalyst *** addition,Ru-Co/CO_(2)P@TDCW catalyst presented excellent stability for more than 600 h working at 100 mA cm^(-2)in alkaline solution(1.0 M KOH).Density function theory(DFT)results revealed that energy barriers for the dissociation of H_(2)O and the formation of H_(2)were decreased by the doping of Ru,and the conductivity and efficiency of electron migration were also *** work demonstrated a strategy to optimize the structure and properties of wood carbon substrate,providing a promising strategy to synthesize high-efficiency catalyst for H_(2)production.