Hierarchically nanostructured nitrogen-doped porous carbon multilayer confining Fe particles for high performance hydrogen evolution  

作　　者：Ying Wang Li Jin Shiyang Hua Zhe Zhao Zhijia Xiao Chunyan Qu Jiayuan Huang Gaoshan Huang Xinyi Ke Zihan Lu Ji Tan Xuanyong Liu Yongfeng Mei 

机构地区：[1]College of Mathematics and Physics,Shanghai University of Electric Power,Shanghai,200090,China [2]Department of Materials Science&State Key Laboratory of Molecular Engineering of Polymers,Fudan University,Shanghai,200438,China [3]Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception,Institute of Optoelectronics,Fudan University,Shanghai,200438,China [4]International Institute of Intelligent Nanorobots and Nanosystems,Fudan University,Shanghai,200438,China [5]Yiwu Research Institute of Fudan University,Yiwu,322000,Zhejiang,China [6]State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai,200050,China [7]Wuhan Institute of Marine Electric Propulsion,Wuhan,430064,China

出　　处：《Journal of Materiomics》2023年第6期1113-1121,共9页无机材料学学报（英文）

基　　金：supported by the National Key Technologies R&D Program of China(2021YFA0715302 and 2021YFE0191800);the National Natural Science Foundation of China(61975035 and 52203328);the Science and Technology Commission of Shanghai Municipality(22ZR1405000 and 20501130700);the China Postdoctoral Science Foundation(2022TQ0066 and 2022TQ0067);the Open Fund of the State Key Laboratory on Integrated Optoelectronics(IOSKL2020KF03).

摘　　要：Precise assembly of active component with sophisticated confinement in electrocatalyst are promising to increase the active site exposure for enhanced hydrogen evolution reaction(HER).Here,PCN-333 films with mesopores are firstly assembled on titanium carbide MXene with the assistance of atomic layer deposited oxide nanomembrane.With the whereafter pyrolysis process,the composite is converted to Ndoped porous carbon multi-layer containing Fe nanoparticles.The strong confinement of Fe active particle in carbon as well as great contact between metal and carbon effectively enhance active site exposure.Furthermore,this multi-layer porous structure provides high specific surface area and plentiful mesopores for electrolyte penetration.Due to the structural advantage,the composite can be well functioned in both acid and alkaline electrolytes with excellent HER performance,e.g.,low overpotential/Tafel slope.The present work may have great potential in developing high efficiency transition-metal based electrocatalysts.

关 键 词：Hierarchical nanostructure Metal organic framework MXene Atomic layer deposition Hydrogen evolution reaction 

分 类 号：TQ116.2[化学工程—无机化工]