NaBH4 reduction of Ti-Si-O nanotubes photoanode for high-efficiency photoelectrochemical water splitting
文献类型：期刊论文
| 作者 | Dong, Zhenbiao; Ding, Dongyan; Li, Ting; Ning, Congqin1 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2018 |
| 卷号 | 43期号:31页码:14183 |
| ISSN号 | 0360-3199 |
| 关键词 | Ti-Si alloy Si-doped TiO2 nanotubes NaBH4 reduction Ti3+/oxygen vacancy PEC water splitting |
| DOI | 10.1016/j.ijhydene.2018.06.031 |
| 英文摘要 | Photoelectrochemical (PEC) water splitting based on doping-modified one-dimensional (1D) TiO2 is a promising approach to sustainable hydrogen evolution. Here we successfully fabricated high-efficiency reduced Ti-Si-O nanotubes photoanode through anodizing two-phase Ti Si alloy and one step NaBH4 reduction, and investigated its PEC water splitting properties. It was found that Si-doped TiO2 nanotubes mainly grew at the alpha-Ti region of Ti-5Si alloy substrate, and they easily dissolved at the Ti5Si3 phase region of the alloy. Both Si element and Ti3+/oxygen vacancy (V-o) were successfully doped into the oxide nanotubes, resulting in enhanced optical absorption and facilitated separation of photogenerated electron-hole pairs. The reduced Ti-Si-O nanotubes photoanode with co-doped Si element and Ti3+/V-o could have a high photocurrent density of 1.39 mA/cm(2) at 0 V vs. Ag/AgCl. The solar to hydrogen efficiency could reach 0.88% and it was 4.89 times that of undoped TiO2. It demonstrated that co-doping of Si and Ti3+/V-o shows great potential in improving the PEC water splitting properties of undoped TiO2. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000441493800011 |
| 资助机构 | This work was supported by National Natural Science Foundation of China (No. 51572170). We thank the contributions from SEM, XRD, Raman and XPS labs at Instrumental Analysis Center of SJTU. ; This work was supported by National Natural Science Foundation of China (No. 51572170). We thank the contributions from SEM, XRD, Raman and XPS labs at Instrumental Analysis Center of SJTU. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24746]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Inst Elect Mat & Technol, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Zhenbiao,Ding, Dongyan,Li, Ting,et al. NaBH4 reduction of Ti-Si-O nanotubes photoanode for high-efficiency photoelectrochemical water splitting[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(31):14183, 14192. |
| APA | Dong, Zhenbiao,Ding, Dongyan,Li, Ting,&Ning, Congqin.(2018).NaBH4 reduction of Ti-Si-O nanotubes photoanode for high-efficiency photoelectrochemical water splitting.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(31),14183. |
| MLA | Dong, Zhenbiao,et al."NaBH4 reduction of Ti-Si-O nanotubes photoanode for high-efficiency photoelectrochemical water splitting".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.31(2018):14183. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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