A Dual Plasmonic Photoelectrode System for Visible-Light Photocatalysis

被引：3
|
作者：
Nishi, Hiroyasu [1 ]
Miyake, Koji [1 ]
Kao, Kun-Che [1 ]
Tatsuma, Tetsu [1 ]
机构：
[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
来源：
CHEMNANOMAT | 2020年 / 6卷 / 04期
基金：
日本学术振兴会;
关键词：
plasmon resonance; Au nanoparticle; photocatalysis; photoanode; photocathode; INDUCED CHARGE SEPARATION; GOLD NANOPARTICLES; METAL; WATER; TIO2; HYDROGEN; IRRADIATION; GENERATION; AU/TIO2;
D O I：
10.1002/cnma.201900751
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Plasmonic photocathodes based on plasmon-induced charge separation (PICS) were prepared by depositing an Au nanoparticle (AuNP) ensemble on a transparent electrode and coating it with compact TiO2. Its PICS efficiency was improved by coating it further with porous TiO2 or introducing a NiO blocking layer as an underlayer of the AuNP ensemble. The former photocathode was modified further with Pt co-catalyst nanoparticles, and combined with a PICS photoanode fabricated by depositing a AuNP ensemble on compact TiO2 and coating it with a Ni(OH)(2) charge accumulation layer. The dual plasmonic photoelectrode system thus obtained exhibited a higher efficiency than the sum of the efficiencies of the single photoanode and single photocathode.
引用
收藏
页码：529 / 532
页数：4
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