Dye-sensitized cobalt catalysts for high efficient visible light hydrogen evolution
文献类型：期刊论文
| 作者 | Kong C(孔超)1,2 ; Min SX(敏世雄)1,2; Lu GX(吕功煊)1
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| 刊名 | International Journal of Hydrogen Energy
 |
| 出版日期 | 2014 |
| 卷号 | 39期号:10页码:4836-4844 |
| 关键词 | Co CoSx Cocatalyst Sensitization Hydrogen evolution Visible light |
| ISSN号 | 0360-3199 |
| 通讯作者 | 吕功煊 |
| 英文摘要 | In this work, high efficient non-noble metal cobalt cocatalysts implanted on the surface of graphene (G) by one-step photoreduction and in-situ chemical deposition methods for hydrogen evolution were reported. XRD and TEM characterizations showed that the Co and CoSx nanoparticles were deposited on the graphene surface as Co/G and CoSx/G composites. CoSx/G and Co/G nanohybrids exhibited high photocatalytic activities for hydrogen evolution sensitized by Eosin Y (EY). The amounts of H2 evolution reached 708.5 and 675.5 μmol over the EY-sensitized CoSx/G and Co/G nanohybrids irradiated under visible light with wavelength longer than 420 nm in 3 h respectively. The apparent quantum efficiency (AQE) of 8.71% over EY-Co/G was accomplished under 520 nm illumination. The fluorescence results indicated that the lifetime of excited electron was remarkably increased. Graphene might promote the photogenerated electrons transfer from excited dye to the hydrogen evolution active sites such as Co or CoSx, and consequently enhance photocatalytic hydrogen evolution efficiency. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the 973 and 863 Programs of Department of Sciences and Technology of China (2013CB632404;2012AA051501;2009CB220003);the NSF of China (grant no. 21173242) |
| 语种 | 英语 |
| WOS记录号 | WOS:000334130800009 |
| 源URL | [http://210.77.64.217/handle/362003/20451]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 10080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong C,Min SX,Lu GX. Dye-sensitized cobalt catalysts for high efficient visible light hydrogen evolution[J]. International Journal of Hydrogen Energy,2014,39(10):4836-4844. |
| APA | Kong C,Min SX,&Lu GX.(2014).Dye-sensitized cobalt catalysts for high efficient visible light hydrogen evolution.International Journal of Hydrogen Energy,39(10),4836-4844. |
| MLA | Kong C,et al."Dye-sensitized cobalt catalysts for high efficient visible light hydrogen evolution".International Journal of Hydrogen Energy 39.10(2014):4836-4844. |
入库方式： OAI收割
来源：兰州化学物理研究所
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