Hierarchical TiO2nanowire/microflower photoanode modified with Au nanoparticles for efficient photoelectrochemical water splitting
文献类型：期刊论文
| 作者 | Wang, Chuanyi; Duan, Yanyan; Zhang, Mei; Wang F(王富); Xu, Tao; Zhou, Shaochen; Chen ZH(陈志鸿); Luo, Jianmin |
| 刊名 | Catalysis Science and Technology
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:5页码:1395-1403 |
| ISSN号 | 2044-4753 |
| 产权排序 | 2 |
| 通讯作者 | Wang F(王富) |
| 中文摘要 | An efficient photoelectrochemical water splitting system is developed based on a hierarchical TiO2nanowire/microflower (H-TiO2) photoanode, which is synthesized via a one-step hydrothermal process. The H-TiO2structure is formed via three primary self-assembly processes and simultaneously offers excellent ultraviolet light absorption capacity and large specific surface area. The H-TiO2photoanode achieves a 1.3 fold enhancement in photocurrent density compared to its TiO2nanowire-based counterpart at 1.23 V vs. reversible hydrogen electrode (the theoretical potential for water electrolysis). More strikingly, by incorporating the surface plasmon resonance (SPR) effect from Au nanoparticles (NPs), the resulting Au/H-TiO2-based photoanodes (Au/H-TiO2) exhibit an about two-fold enhancement in photocurrent density under both simulated sunlight and visible-light illumination. Moreover, the maximum photoconversion efficiency of Au/H-TiO2gives three fold enhancement compared to that in the absence of Au NPs. Significantly, Au NPs incorporated on the H-TiO2surface also serve as co-catalysts like Pt under white-light illumination, reducing the onset potential by about 0.15 V and the current saturation potential by about 0.18 V. The enhanced photoactivity under white light is due to the co-action of electron transfer from the efficient carrier separation of H-TiO2(ultraviolet part) and Au to H-TiO2under the SPR effect (visible part). The present study provides a new strategy for designing and fabricating TiO2-based devices with favorable energy conversion efficiency for photoelectrochemical water splitting. © 2018 The Royal Society of Chemistry. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | SENSITIZED SOLAR-CELLS ; VISIBLE-LIGHT ; NANOTUBE ARRAYS ; NANOWIRE ARRAYS ; HYDROGEN GENERATION ; PHOTOCATALYTIC PERFORMANCE ; OXIDATION ; SEMICONDUCTOR ; NANOCRYSTALS ; NANORODS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000427157000018 |
| 源URL | [http://ir.sia.cn/handle/173321/21570]  |
| 专题 | 沈阳自动化研究所_广州中国科学院沈阳自动化研究所分所 |
| 作者单位 | 1.830011, China 2.Laboratory of Environmental Science and Technology, Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 3.Shenyang Institute of Automation, Chinese Academy of Sciences, Guangzhou 4.60115, United States 5.IL 6.Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb 7.511458, China |
| 推荐引用方式 GB/T 7714 | Wang, Chuanyi,Duan, Yanyan,Zhang, Mei,et al. Hierarchical TiO2nanowire/microflower photoanode modified with Au nanoparticles for efficient photoelectrochemical water splitting[J]. Catalysis Science and Technology,2018,8(5):1395-1403. |
| APA | Wang, Chuanyi.,Duan, Yanyan.,Zhang, Mei.,Wang F.,Xu, Tao.,...&Luo, Jianmin.(2018).Hierarchical TiO2nanowire/microflower photoanode modified with Au nanoparticles for efficient photoelectrochemical water splitting.Catalysis Science and Technology,8(5),1395-1403. |
| MLA | Wang, Chuanyi,et al."Hierarchical TiO2nanowire/microflower photoanode modified with Au nanoparticles for efficient photoelectrochemical water splitting".Catalysis Science and Technology 8.5(2018):1395-1403. |
入库方式： OAI收割
来源：沈阳自动化研究所
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