文献类型：期刊文献

英文题名：Metal-Reduced WO3-x Electrodes with Tunable Plasmonic Resonance for Enhanced Photoelectrochemical Water Splitting

作者：Zhang, Xueliang Wang, Xin Yi, Xinli Liu, Lequan Ye, Jinhua Wang, Defa

第一作者：张学亮;Zhang, Xueliang

通信作者：Ye, JH[1];Wang, DF[1];Ye, JH[2];Wang, DF[2];Ye, JH[3]

机构：[1]Tianjin Univ, TJU NIMS Int Collaborat Lab, Tianjin Key Lab Composite & Funct Mat, Sch Mat Sci & Engn,Minist Educ,Key Lab Adv Ceram, Tianjin 300072, Peoples R China;[2]Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;[3]Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan;[4]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Peoples R China

第一机构：Tianjin Univ, TJU NIMS Int Collaborat Lab, Tianjin Key Lab Composite & Funct Mat, Sch Mat Sci & Engn,Minist Educ,Key Lab Adv Ceram, Tianjin 300072, Peoples R China

通信机构：corresponding author), Tianjin Univ, TJU NIMS Int Collaborat Lab, Tianjin Key Lab Composite & Funct Mat, Sch Mat Sci & Engn,Minist Educ,Key Lab Adv Ceram, Tianjin 300072, Peoples R China;corresponding author), Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China;corresponding author), Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan.

年份：2020

卷号：3

期号：4

起止页码：3569-3576

外文期刊名：ACS APPLIED ENERGY MATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000529190300052)】；

基金：Financial support from the National Natural Science Foundation of China (51572191 and 21633004) is highly appreciated.

语种：英文

外文关键词：tungsten oxide; semiconductor; metal foil; plasmonic resonance; photoelectrochemical water splitting

摘要：Photoelectrochemical (PEC) water splitting is one of the most promising green technologies for producing renewable clean hydrogen energy. Developing plasmonic semiconductors with tunable plasmonic resonance to visible light has drawn increasing attention in view of utilizing abundant low-energy photons for solar-to-chemical conversion. Herein, we demonstrate for the first time that the WO(3 )electrode can be partly reduced by various metal foils in acid solution, showing strong localized surface plasmon resonance (LSPR) in the visible-to-near-infrared (vis-NIR) region. The LSPR can be precisely tuned using metal foils with different standard electrode potentials for different reaction times, and the LSPR peak position strongly depends on the concentration of W5+ in the WO3-x electrodes. A photocurrent density of 0.79 mA.cm(-2) at 1.23 V-RHE, which is twice that of pristine one, is obtained over an optimally reduced WO3-x electrode. The enhanced PEC water splitting performance is ascribed to the increased light absorption, conductivity, and charge-carrier concentration.