ZnO/ZnS heterostructures for hydrogen production by photoelectrochemical water splitting

被引：35

作者：

Sanchez-Tovar, R. ^{[1
]}

Fernandez-Domene, R. M. ^{[1
]}

Montanes, M. T. ^{[1
]}

Sanz-Marco, A. ^{[1
]}

Garcia-Anton, J. ^{[1
]}

机构：

[1] Univ Politecn Valencia, IEC, Dept Ingn Quim & Nucl, ETSI Ind, Camino Vera S-N, E-46022 Valencia, Spain

来源：

RSC ADVANCES | 2016年 / 6卷 / 36期

关键词：

HYDRODYNAMIC CONDITIONS; RAMAN-SPECTROSCOPY; SENSITIZED ZNO; TIO2; NANOTUBES; ZINC; PHOTOCATALYST; ANODIZATION; EVOLUTION; GROWTH; ARRAYS;

D O I：

10.1039/c6ra03501a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work studies the photoelectrochemical behavior of novel ZnO/ZnS heterostructures obtained by means of anodization in water and glycerol/water/NH4F electrolytes with different Na2S additions under controlled hydrodynamic conditions. For this purpose different techniques such as Field Emission Scanning Electronic Microscopy (FE-SEM) with EDX, Raman spectroscopy and photoelectrochemical water splitting tests under standard AM 1.5 conditions have been carried out. The obtained results showed that the hydrodynamic conditions promoted an ordered nanotubular morphology which facilitates electron-hole separation and consequently, the photoelectrochemical activity for water splitting is enhanced. Additionally, the effect of glycerol in the anodization solutions seems to be beneficial for increasing the dark current photostability.

引用

页码：30425 / 30435

页数：11

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