中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution

文献类型:期刊论文

作者Lv GX(吕功煊); Lv GX(吕功煊); Wu YQ(吴玉琪); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊)
刊名Journal of Photochemistry and Photobiology A: Chemistry
出版日期2006
卷号181期号:2-3页码:263–267
关键词Photocatalytic reactivity stability Co2+-modified TiO2 Photoelectrochemistry H2 production
ISSN号1010-6030
通讯作者吕功煊
中文摘要In this paper, the long-term stability of photocatalytic activity of Co2+ doped P25-TiO2 nanoparticles for hydrogen production from aqueous ethanol solution is discussed using a photoelectrochemical method in detail. It was found that after a long-term photoreaction, the photocatalytic activity of Co2+ ion modified P25-TiO2 photocatalyst for hydrogen production has decreased by a factor of ca. 50%, and still was very high compared to that of pure P25-TiO2 photocatalyst. And the steady anodic photocurrent appeared to have an obvious decrease after photoreaction (from 2.75×10−4 to 1.5×10−4 A), but the character of photocurrent response was still similar to photoreaction before. Moreover, the most important reason for the decrease of photocatalytic activity is the removal of CoOx active species (x > 1) from the surface of TiO2 photocatalyst after a long-term photoreaction. In addition, a new CoOx intermediate species (x < 1, photooxidative potential at −0.36V versus SCE) emerged on the surface of TiO2 photocatalyst during photoreaction.
收录类别SCI
资助信息the Nation Natural Science Foundation of China (Project number, 90210027);the China Nation Key Basic Research Special Funds (Project numbers, 2003CB214500;G200000264)
语种英语
公开日期2013-12-05
源URL[http://210.77.64.217/handle/362003/4454]  
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); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊); Lv GX(吕功煊)
推荐引用方式
GB/T 7714
Lv GX,Lv GX,Wu YQ,et al. The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution[J]. Journal of Photochemistry and Photobiology A: Chemistry,2006,181(2-3):263–267.
APA 吕功煊.,吕功煊.,Wu YQ.,吕功煊.,吕功煊.,...&吕功煊.(2006).The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution.Journal of Photochemistry and Photobiology A: Chemistry,181(2-3),263–267.
MLA 吕功煊,et al."The long-term photocatalytic stability of Co2+-modified P25-TiO2 powders for the H2 production from aqueous ethanol solution".Journal of Photochemistry and Photobiology A: Chemistry 181.2-3(2006):263–267.

入库方式: OAI收割

来源:兰州化学物理研究所

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