| Promoted photoinduced charge separation and directional electron transfer over dispersible xanthene dyes sensitized graphene sheets for efficient solar H-2 evolution | |
| Department | OSSO国家重点实验室 |
Min SX(敏世雄)1,2 ; Lu GX(吕功煊)1; Lv GX(吕功煊)
| |
| The second department | erc国家工程研究中心 |
| 2013 | |
| Source Publication | International Journal of Hydrogen Energy
 |
| ISSN | 0360-3199 |
| Volume | 38Issue:5Pages:2106-2116 |
| Abstract | Directional electron transfer and effective charge separation facilitated by graphene sheets have provided an inspiring approach to enhance the efficiencies of photoelectric conversion and photocatalysis. Herein, we demonstrated the feasibility of constructing a highperformance of the dye-sensitized H2 evolution system using dispersible grapheme sheets as both efficient electron transfer carrier and catalyst scaffold. Among the xanthene dyes sensitized H2 evolution catalysts in this study, photocatalyst of Rose Bengal (RB) sensitized graphene decorated with Pt is the most active one and exhibits the highest apparent quantum efficiency (AQE) of 18.5% at wavelength of 550 nm and rather long-term stability for H2 evolution. Dispersible graphene sheets can not only capture electrons from the excited dye and then transfer them to the decorated catalysts efficiently for improving charge separation with a small energy loss, but also afford large interfaces for highly dispersing catalyst nanoparticles with more active sites, thereby significantly enhancing the H2 evolution efficiency than graphite oxide (GO) and multiwall carbon nanotubes (MWCNTs). This work proposes a potential strategy to develop efficient photocatalytic systems for solar-energy-conversion and provides a new insight into mechanistic study of photoinduced electron transfer by effective synergetic combination of dispersible grapheme sheets with an efficient dye and a H2 evolution catalyst. |
| Keyword | Dispersible Graphene Sheets Rose Bengal Sensitization Electron Transfer Charge Separation H-2 Evolution Visible Light Illumination |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1016/j.ijhydene.2012.11.124 |
| Funding Organization | the National Science Foundation of China (21173242);973 Program;863 Program of Department of Sciences and Technology of China (Grant Nos. 2007CB613305;2009CB22003;2009AA05Z117) |
| Indexed By | SCI |
| If | 2.930 |
| Language | 英语 |
| Funding Project | 环境催化与清洁能源研究组;环境催化与氢能源研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4931 |
| 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.Chinese Acad Sci, Grad Sch, Beijing 10080, Peoples R China |
| Recommended Citation GB/T 7714 | Min SX,Lu GX,Lv GX. Promoted photoinduced charge separation and directional electron transfer over dispersible xanthene dyes sensitized graphene sheets for efficient solar H-2 evolution[J]. International Journal of Hydrogen Energy,2013,38(5):2106-2116. |
| APA | Min SX,Lu GX,&吕功煊.(2013).Promoted photoinduced charge separation and directional electron transfer over dispersible xanthene dyes sensitized graphene sheets for efficient solar H-2 evolution.International Journal of Hydrogen Energy,38(5),2106-2116. |
| MLA | Min SX,et al."Promoted photoinduced charge separation and directional electron transfer over dispersible xanthene dyes sensitized graphene sheets for efficient solar H-2 evolution".International Journal of Hydrogen Energy 38.5(2013):2106-2116. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2013,38(5),2106-2116（1416KB） | 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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