| 铜纳米粒子的电化学制备及其氧化物的光电催化分解水性能 |
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| 作者姓名： | 郭欣 许頔 项民 刁鹏 |
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| 作者单位： | 北京航空航天大学材料科学与工程学院, 北京 100191 |
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| 摘 要： | 以五水硫酸铜(CuSO4·5H2O)为前驱体,聚乙烯吡咯烷酮(PVP)为包裹剂,在水溶液中采用电化学方法在氧化铟锡(ITO)表面制备得到了形貌和尺寸均一的铜纳米粒子,并研究了前躯体的浓度、包裹剂的种类和浓度以及电化学沉积电位对产物的形貌和生长密度的影响.将得到的产物经过热处理后,会在表面生成一层黑色的氧化铜,经过测试发现其对光电分解水制氢具有良好的催化作用.
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| 关 键 词： | 铜 纳米粒子 电化学制备 氧化铜 光电反应 催化 |
| 收稿时间： | 2014-03-13 |
Electrochemical preparation of copper nanoparticles and photoelectrochemical water splitting activity of copper oxide |
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| Affiliation: | School of Material Science and Engineering, Beihang University, Beijing 100191, China |
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| Abstract: | Copper nanoparticles with uniform size and morphology were prepared on indium tin oxide (ITO) substrates by an electrochemical method. CuSO4·5H2O and polyvinylpyrrolidone (PVP) were used as a precursor and a capping agent, respectively. The effect of the concentration of the precursor, the type and concentration of the capping agent, and the potential of electrochemical deposition on the morphology and density of products were studied. A CuO film was obtained by a heat treatment of the as-prepared Cu nanoparticles. Test results show that the CuO film exhibits high photoelectrochemical activity toward water splitting for hydrogen generation. |
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