Facile synthesis of ZnO nanopencil arrays for photoelectrochemical water splitting

被引：72

作者：

Lv, Rui ^{[1
,2
]}

Wang, Tuo ^{[1
,2
]}

Su, Fengli ^{[1
,2
]}

Zhang, Peng ^{[1
,2
]}

Li, Changjiang ^{[1
,2
]}

Gong, Jinlong ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol Minist Educ, Tianjin, Peoples R China

[2] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

来源：

NANO ENERGY | 2014年 / 7卷

基金：

中国国家自然科学基金;

关键词：

ZnO nanoarrays; Photoelectrochemical cell; Water splitting; Hydrogen production; Nanopencils; PHOTOCATALYTIC HYDROGEN EVOLUTION; ZINC-OXIDE NANOPARTICLES; TIO2 NANOTUBE ARRAYS; DOPED ZNO; NANOWIRE ARRAYS; THIN-FILMS; GROWTH; NANOROD; CDS; NANOSTRUCTURES;

D O I：

10.1016/j.nanoen.2014.04.020

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：

This paper describes the downward growth of ZnO nanopencil arrays on F-doped SnO2 glass substrates by an aqueous chemical method. The ZnO nanopencil arrays have a unique structure with an abrupt shrinkage in diameter between the tip and the pencil-holder. The ZnO nanopencil arrays yield an elevated photocurrent of similar to 1.3 nnA/cm(2) at 1 V versus Ag/AgCl under 100 mW/cm(2) illumination (AM 1.5), which is almost 2 times larger than that of the ZnO nanorod arrays. The enhanced photocurrent is attributed to an increased density of oxygen vacancies that could enhance the charge transportation by reducing the electron-hole recombination. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：143 / 150

页数：8

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