Enabling an integrated tantalum nitride photoanode to approach the theoretical photocurrent limit for solar water splitting
文献类型：期刊论文
| 作者 | Xiong, Fengqiang1; Fu, Ping1,2; Wang, Zhiliang1,2; Chen, Zheng1,2; Li, Can1; Shi, Jingying1; Liu, Guiji1,2; Ye, Sheng1; Yan, Pengli1 |
| 刊名 | ENERGY & ENVIRONMENTAL SCIENCE
 |
| 出版日期 | 2016 |
| 卷号 | 9期号:4页码:1327-1334 |
| ISSN号 | 1754-5692 |
| DOI | 10.1039/c5ee03802b |
| 文献子类 | Article |
| 英文摘要 | The feasibility of photoelectrochemical (PEC) water-splitting cells relies on the development of high-performance photoanodes. Significant progress has been made in the discovery of narrow bandgap semiconductors as promising photoanodes. However, the rational design of photoanode architecture that brings the potentials of narrow bandgap semiconductors into fruition for efficient PEC water oxidation still remains a key challenge. Herein, we show a highly efficient photoanode system consisting of a tantalum nitride (Ta3N5) semiconductor for light harvesting, hole-storage layers (Ni(OH)(x)/ferrhydrite) that mediate interfacial charge transfer from Ta3N5 to coupled molecular catalysts (Co cubane and Ir complex) for water oxidation and a TiOx blocking layer that reduces the surface electron-hole recombination. The integrated Ta3N5 photoanode exhibits a record photocurrent of 12.1 mA cm(-2) at 1.23 V vs. the reversible hydrogen electrode (RHE), which is nearly its theoretical photocurrent limit under sunlight (12.9 mA cm(-2)), suggesting that almost each pair of photogenerated charge carriers in Ta3N5 has been efficiently extracted and collected for solar water splitting. |
| WOS关键词 | HOLE-STORAGE-LAYER ; CHARGE-TRANSPORT ; TA3N5 PHOTOANODE ; OXYGEN EVOLUTION ; PHOTOELECTRODES ; SPECTROSCOPY ; PHOTOVOLTAGE ; ELECTRODES ; EFFICIENCY |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000374351200019 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170798]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Li, Can; Shi, Jingying |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy,Collaborat Innovat C, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiong, Fengqiang,Fu, Ping,Wang, Zhiliang,et al. Enabling an integrated tantalum nitride photoanode to approach the theoretical photocurrent limit for solar water splitting[J]. ENERGY & ENVIRONMENTAL SCIENCE,2016,9(4):1327-1334. |
| APA | Xiong, Fengqiang.,Fu, Ping.,Wang, Zhiliang.,Chen, Zheng.,Li, Can.,...&Yan, Pengli.(2016).Enabling an integrated tantalum nitride photoanode to approach the theoretical photocurrent limit for solar water splitting.ENERGY & ENVIRONMENTAL SCIENCE,9(4),1327-1334. |
| MLA | Xiong, Fengqiang,et al."Enabling an integrated tantalum nitride photoanode to approach the theoretical photocurrent limit for solar water splitting".ENERGY & ENVIRONMENTAL SCIENCE 9.4(2016):1327-1334. |
入库方式： OAI收割
来源：大连化学物理研究所
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