| Dye-sensitized cobalt catalysts for high efficient visible light hydrogen evolution | |
| Department | OSSO国家重点实验室 |
Kong C(孔超)1,2 ; Min SX(敏世雄)1,2; Lu GX(吕功煊)1; Lv GX(吕功煊)
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| 2014 | |
| Source Publication | International Journal of Hydrogen Energy
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| ISSN | 0360-3199 |
| Volume | 39Issue:10Pages:4836-4844 |
| Abstract | 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. |
| Keyword | Co Cosx Cocatalyst Sensitization Hydrogen Evolution Visible Light |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1016/j.ijhydene.2014.01.089 |
| Funding Organization | the 973 and 863 Programs of Department of Sciences and Technology of China (2013CB632404;2012AA051501;2009CB220003);the NSF of China (grant no. 21173242) |
| Indexed By | SCI |
| If | 3.313 |
| Language | 英语 |
| Funding Project | 环境催化与氢能源组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/20451 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Lv GX(吕功煊) |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Kong C,Min SX,Lu GX,et al. 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,&吕功煊.(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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2014,39(10),4836-484（1446KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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