Plasmon-induced local electric field improved hydrogen evolution reaction on Ag/Mo_(2)C nanosheets  

作　　者：HuangJingWei Li Xin Zi Jun Wu Xinli Wang Li Zhu Qiyou Wang Jianfu Han Junwei Fu Hongmei Li Kai Huang Yu Chen Min Liu 

机构地区：[1]School of Physics,State Key Laboratory of Powder Metallurgy,Hunan Joint International Research Center for Carbon Dioxide Resource Utilization,Central South University,Changsha 410083,China [2]School of Metallurgy and Environment,Central South University,Changsha 410083,China [3]Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China [4]Nano-Institute Munich,Faculty of Physics,Ludwig-Maxilimians-Universität München,München 80539,Germany [5]Hunan Institute of Advanced Sensing and Information Technology,Xiangtan University,Xiangtan 411105,China

出　　处：《Nano Research》2025年第1期270-277,共8页纳米研究（英文版）

基　　金：China Postdoctoral Science Foundation(Nos.2023M731175 and GZB20230232);the National Natural Science Foundation of China(Nos.22376222,52372253,22002189,and 52202125);the Science and Technology lnnovation Program of Hunan Province(No.2023RC1012);the National Science Foundation of Hunan Province(No.2021JJ30864);Central South University Research Programme of Advanced Interdisciplinary Studies(No.2023QYJC012);Central South University Innovation-Driven Research Programme(No.2023CXQD042);supported by State Key Laboratory of Powder Metallurgy,Central South University,Changsha,China.

摘　　要：Electrocatalytic water splitting offers a promising way for hydrogen production with near-zero emissions.Carbides,such as molybdenum carbides(Mo_(2)C),are promising materials for hydrogen evolution reaction(HER)but still suffer from poor intrinsic water activation properties.Here,we developed a plasmon-induced local electric field(PILEF)strategy to solve this barrier.Silver(Ag)nanoparticles decorated Mo_(2)C nanosheets(Ag/Mo_(2)C)were successfully prepared by electrostatic adsorption.The visible light excited the PILEF on Ag/Mo_(2)C remarkably reducing the activation energy by 92.7 kJ·mol^(-1)from 147.3 kJ·mol^(-1)of Mo_(2)C to 54.6 kJ·mol^(-1).As a result,the plasmonic Ag/Mo_(2)C significantly enhances~2.3-fold of the current density from 2.8 mA·cm^(-2)of Mo_(2)C to 6.5 mA·cm^(-2)at-3 V vs.RHE and reduces the overpotential by 104 mV from 403 mV of dark state to 299 mV of light state at the current density of 10 mA·cm^(-2),achieving better performance than reported catalysts.This research demonstrates that PILEF enhances HER activities,offering a potential strategy for boosting the intrinsic activities of catalysts.

关 键 词：sliver particles plasmon effect field effect hydrogen evolution reaction(HER) ELECTROCATALYSIS 

分 类 号：TB383[一般工业技术—材料科学与工程]