节点文献
Co-SrTiO3上光催化分解水制氢的性能研究
Performance of Photocatalytic Decomposition of Water into Hydrogen over Co-SrTiO3
【Abstract】 The activity of Co-SrTiO3 for photocatalytic decomposition of water into hydr ogen was studied, and the reason for improvement of activity of supported cataly sts by first reduction in H2 at a higher temperature and then reoxidation in oxy gen at a lower temperature was analyzed. The mechanism of the photocatalysis of Co-SrTiO3-R-O and Ni-SrTiO3-R-O catalyst was investigated. The metal, Ni o r Co deposited at the interface between the P-type semiconductor, NiO or CoO, a nd the N-type semiconductor, SiTiO3, which may act as the trapped site of elect ron and hole from the N-type semiconductor and the P-type semiconductor respec tively, suppresses the recombination of electron and hole in the bulk of semicon ductor, and furthermore increase the catalytic activity of the catalyst. A highe r activity of Co-SrTiO3-R-O for water decomposition than that of Ni-SrTiO3- R-O is mainly due to CoO having a narrower band gap and a wider range of light absorbance, compared with NiO.
- 【文献出处】 无机化学学报 ,Chinese Journal of Inorganic Chemistry , 编辑部邮箱 ,2003年09期
- 【分类号】TQ116.2
- 【被引频次】30
- 【下载频次】397