The Role of Cu(I) Species for Photocatalytic Hydrogen Generation Over CuOx/TiO2
文献类型：期刊论文
| 作者 | Lv GX(吕功煊) ; Wu YQ(吴玉琪)
|
| 刊名 | Catalysis Letters
 |
| 出版日期 | 2009 |
| 卷号 | 133页码:97-105 |
| 关键词 | Copper species Photocatalytic hydrogen production TiO2 |
| ISSN号 | 1011-372X |
| 通讯作者 | 吕功煊 |
| 中文摘要 | The fabrication of different CuOx species (Cu(0), Cu(I) and Cu(II) species) over TiO2 has been accomplished and their roles in photoinduced hydrogen generation have been investigated. The results indicate that the positive charge in CuOx center affect photo-induced charge transfer significantly. Cu(I) species seems promote photocurrent generation while the Cu(II) species inhibits the photocurrent generation. Photoactivity order follows the similar sequence. Lower temperature calcination helps the formation of Cu(I) species and higher temperature treatment leads to the formation of Cu(II) species. At the lower loading level, the Cu content increase leads to the activity increase, but over loading of copper resulted in the decrease of activities for hydrogen generation. Detail analysis indicates that too much copper loading induces more Cu(II) center formation, as a results, the activity for hydrogen generation decreases. The species of Cu(0) does no affect the activity obviously at low loading level and shows detrimental effect at high loading level. The optimal loading amount of copper is 1.0Cu (wt%). |
| 学科主题 | 环境催化与清洁能源 |
| 收录类别 | SCI |
| 资助信息 | the National Basic Research Program of China (No. 2007CB613305;2009CB220003);Solar Energy Project of Chinese Academy of Sciencesis |
| 语种 | 英语 |
| WOS记录号 | WOS:000271443200014 |
| 公开日期 | 2012-09-21 |
| 源URL | [http://210.77.64.217/handle/362003/584]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
| 通讯作者 | Lv GX(吕功煊) |
| 推荐引用方式 GB/T 7714 | Lv GX,Wu YQ. The Role of Cu(I) Species for Photocatalytic Hydrogen Generation Over CuOx/TiO2[J]. Catalysis Letters,2009,133:97-105. |
| APA | 吕功煊,&吴玉琪.(2009).The Role of Cu(I) Species for Photocatalytic Hydrogen Generation Over CuOx/TiO2.Catalysis Letters,133,97-105. |
| MLA | 吕功煊,et al."The Role of Cu(I) Species for Photocatalytic Hydrogen Generation Over CuOx/TiO2".Catalysis Letters 133(2009):97-105. |
入库方式： OAI收割
来源：兰州化学物理研究所
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