文献类型：期刊文献

英文题名：Synergizing the plasmonic and semiconductor properties of W18O49 for enhanced hydrogen evolution under broadband excitation

作者：Xu, Zehong[1,2,3]; Liu, Weilong[1,2,3]; Yue, Wenhui[1,2,3]; Li, Mengyuan[1,2,3]; Wu, Shiqun[1,2,3]; Wang, Lingzhi[1,2,3]; Xu, Yikai[1]; Li, Chunchun[4]; Ye, Ziwei[1,2,3]; Zhang, Jinlong[1,2,3]

机构：[1] State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] Key Laboratory for Advanced Materials, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [3] Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [4] School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2025

外文期刊名：Nano Materials Science

收录：EI(收录号：20252418613328)

语种：英文

外文关键词：Electric excitation - Electrons - Heterojunctions - Hot electrons - Hydrogen evolution reaction - Hydrogen production - Infrared devices - Plasmonics - Sulfur compounds - Surface plasmon resonance - Tungsten compounds

摘要：WO2.72, with its broad localized surface plasmon resonance (LSPR) response, holds significant potential for harvesting visible and near-infrared (NIR) solar radiation. However, due to its relatively low free electron density, its LSPR excitation intensity is inherently weaker compared to conventional plasmonic metals. In this study, we enhanced the LSPR response of WO2.72 by coupling it with Au nanoparticles. Upon LSPR excitation, this hybrid structure enables efficient generation of hot electrons, which can be extracted by the surface-deposited CdS layer to drive hydrogen evolution reactions. Importantly, the incorporation of the CdS layer also leads to the formation of an S-scheme heterojunction between CdS and WO2.72 due to their well-matched band structures. The formation of S-scheme heterojunction not only promotes more efficient UV-excited generation of photo electrons in WO2.72 and CdS, but also prevents the mutual cancellation of hot electrons and photogenerated electrons due to interfacial band bending. This synergy ensures efficient generation and utilization of both hot electrons and photogenerated electrons, giving rise to an excellent hydrogen evolution rate of 165.5 ?mmol ?g?1 ?h?1 under the irradiation of the stimulated sunlight. ? 2025 Chongqing University