超声喷雾热分解WO<sub>3</sub>薄膜的光电化学制氢研究

苏进展; 李明涛; 郭烈锦

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超声喷雾热分解WO₃薄膜的光电化学制氢研究

氢能研究 | 更新时间：2025-12-08

- 超声喷雾热分解WO₃薄膜的光电化学制氢研究
- Characterization of Ultrasonic Spray Pyrolysis Deposited WO₃ Thin Film for Photoelectrochemical Splitting of Water
- 西安交通大学学报 2008年42卷第5期页码：617-621+625
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2007-08-23. 作者简介: 苏进展(1983-),男,博士生;郭烈锦(联系人),男,教授,博士生导师. 基金项目: 国家重点基础研究发展规划资助项目(2003CB214500)
- DOI：
  中图分类号： O649
- 网络首发：2008-05-10，
  
  纸质出版：2008
- 稿件说明：
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苏进展, 李明涛, 郭烈锦. 超声喷雾热分解WO₃薄膜的光电化学制氢研究[J]. 西安交通大学学报, 2008,42(5):617-621+625.

苏进展, 李明涛, 郭烈锦. Characterization of Ultrasonic Spray Pyrolysis Deposited WO₃ Thin Film for Photoelectrochemical Splitting of Water[J]. 2008, 42(5): 617-621+625.
苏进展, 李明涛, 郭烈锦. 超声喷雾热分解WO₃薄膜的光电化学制氢研究[J]. 西安交通大学学报, 2008,42(5):617-621+625. DOI：

苏进展, 李明涛, 郭烈锦. Characterization of Ultrasonic Spray Pyrolysis Deposited WO₃ Thin Film for Photoelectrochemical Splitting of Water[J]. 2008, 42(5): 617-621+625. DOI：

摘要

以H

在93 ℃水浴中溶解H

得到的溶液作为超声喷雾热分解反应的前驱液制备WO

薄膜

考查了H

添加量及前驱液浓度对薄膜结构和光电化学制氢性能的影响.结果表明

增加前驱液中H

的添加量和降低前驱液浓度都能使薄膜表面由网状结构分裂成颗粒堆积结构

低浓度前驱液制备的薄膜表面经热处理后会结晶出尺寸较大的颗粒.前驱液浓度越高或H

添加量越多

则平带电位变得越负.光电转换效率(IPCE)测量结果表明

对于所有样品

在电极电位(饱和甘汞电极)为0.5 V时

光照产生光电流的起始波长都为450 nm.在强度较弱的单色光照射下

光电效率随H

添加量的增加和前驱液浓度的降低都先增大后减小.氙灯直接照射下的光电流测试结果表明

添加量对光电流的影响不大

而前驱液浓度的降低增大了光电流.

Abstract

films were deposited by ultrasonic spray pyrolysis using the precursor obtained by dissolving tungsten acid in hydrogen peroxide aqueous solution in 366 K water bath. The effect on the structure and photoelectrochemical properties of WO

films by varying amount of hydrogen peroxide and concentration of precursor was investigated. It is found that increase in amount of hydrogen peroxide and decrease in concentration of precursor lead to more cracks on the network-like film surface to transform

it into a particle-assembled structure

while the particles in the films deposited with low concentration precursor crystallize to large grains after annealing process. The flat-band potential shifts negatively with both increasing hydrogen peroxide and precursor concentration. The incident photon to current efficiency(IPCE)first increases and then decreases with the increasing hydrogen peroxide and decreasing precursor concentration. The same photocurrent onset wavelength for all the films is observed as 450 nm with the illumination light wavelength scan from long length to short. The photocurrent-voltage feature under high intensity illumination from Xe lamp reveals that photocurrent increases with lower concentration of precursor

while the photocurrent changes little with different amount of hydrogen peroxide.

关键词

Keywords

references

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超声喷雾热分解WO3薄膜的光电化学制氢研究

Characterization of Ultrasonic Spray Pyrolysis Deposited WO3 Thin Film for Photoelectrochemical Splitting of Water

DOI：

摘要

Abstract

关键词

Keywords

references

超声喷雾热分解WO₃薄膜的光电化学制氢研究

Characterization of Ultrasonic Spray Pyrolysis Deposited WO₃ Thin Film for Photoelectrochemical Splitting of Water