Novel Au/Cu2O multi-shelled porous heterostructures for enhanced efficiency of photoelectrochemical water splitting

被引：79
|
作者：
Wang, Baoshun [1 ]
Li, Renying [1 ]
Zhang, Zhiyun [1 ]
Zhang, Weiwei [2 ]
Yan, Xiaolu [1 ]
Wu, Xiaoling [1 ,3 ]
Cheng, Guoan [1 ,3 ]
Zheng, Ruiting [1 ,3 ]
机构：
[1] Beijing Normal Univ, Key Lab Radiat Beam Technol & Mat Modificat, Minist Educ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[2] Minzu Univ China, Sch Sci, Beijing 10081, Peoples R China
[3] Beijing Radiat Ctr, Beijing 100875, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2017年 / 5卷 / 27期
基金：
中国国家自然科学基金;
关键词：
PHOTOCATALYTIC ACTIVITY; CUPROUS-OXIDE; THIN-FILMS; CU2O; FABRICATION; GRAPHENE;
D O I：
10.1039/c7ta02254a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, we report novel Au/Cu2O multi-shelled porous heterostructures (MSPHs). The results of photoelectrochemical (PEC) examination indicate that the photocurrent density of the as-prepared Au/Cu2O MSPHs electrode reaches 150 mu A cm(-2), which is almost 7.5 times higher than 20 mu A cm(-2) of pure Cu2O MSP at a 0 V bias potential versus Ag/AgCl. The enhanced PEC efficiency of the Au/MSPHs is ascribed to the Schottky barrier at the Au-MSP NP interface and the surface plasmon resonance (SPR) effect of Au. We also found that Au nanoparticles deposited on the surface of Cu2O MSP could effectively adjust their band structure.
引用
收藏
页码：14415 / 14421
页数：7
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