An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance
文献类型：期刊论文
| 作者 | Jiang, Xuhong1,3,4; Sun, Mengmeng1,2,3,5; Chen, Zhuoyuan1,2,3,5; Jing, Jiangping1,2,3; Feng, Chang5
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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| 出版日期 | 2020-03-05 |
| 卷号 | 816页码:11 |
| 关键词 | Electrode materials Thin films Chemical synthesis Phase transitions Photoconductivity and photovoltaics Heterojunctions |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2019.152533 |
| 通讯作者 | Chen, Zhuoyuan(zychen@qdio.ac.cn) |
| 英文摘要 | The microstructure of semiconductor materials is of vital importance to its photoelectrochemical performance because the well-optimized special architecture offers rapid electron transport pathways for the photogenerated electrons and provides large areas for light harvesting. In the present paper, an ultrafine hyperbranched TiO2 nanolawn (TiO2 UFHBNL) photoanode was prepared through a facile one-step solvothermal method under employing a suitable dosage of H2O and diethylene glycol (DEG). Along with varying the dosages of H2O and DEG in the solvothermal process, both the crystal structure and morphology of the prepared TiO2 nanosubstrate changed gradually. With the increase of the dosage of H2O and DEG from 5 mL: 35 mL-10 mL: 30 mL and further to 20 mL: 20 mL, the crystal phase of the TiO2 nanosubstrate transforms from amorphous state to anatase phase and eventually to anatase-rutile mixed phases. And, the morphology of TiO2 nanosubstrate changes from thick nanotrees to UFHBNL architecture and then to nanoparticles. The TiO2 UFHBNL photoanode with the ultrafine hyperbranched architecture (diameter of 5-10 nm) after the CdS nanoparticles (5 nm) decoration shows an extremely enhanced photoelectrochemical performance. The ultrafine hyperbranched TiO2 substrate also induces the super-refinement of the deposited CdS nanoparticles (5 nm) on the sub-branches. A maximum photocurrent density of 5.6 and 3.8 mA cm(-2) are obtained under AM1.5 light and visible light illumination, respectively. The highly efficient photoelectrochemical performance is attributed to the decreased charge transfer barrier which contributes to fast charge transport and decreased recombination efficiency of the carriers. This strategy is beneficial for designing the high-performance photoanodes with the ultrafine hyperbranched architecture. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[41676069] ; National Natural Science Foundation of China[41576114] ; Key Research and Development Program of Shandong Province[2019GHY112085] ; Key Research and Development Program of Shandong Province[2019GHY112066] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[614290101011703] ; Qingdao Applied Basic Research Plan Program (Applied Basic Research)[19-6-2-79-cg] ; Qingdao Applied Basic Research Plan Program (Applied Basic Research)[14-2-4-4-jch] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000503725300012 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/164136]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Chen, Zhuoyuan |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Shandong, Peoples R China 3.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Shandong, Peoples R China 4.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China 5.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Xuhong,Sun, Mengmeng,Chen, Zhuoyuan,et al. An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,816:11. |
| APA | Jiang, Xuhong,Sun, Mengmeng,Chen, Zhuoyuan,Jing, Jiangping,&Feng, Chang.(2020).An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance.JOURNAL OF ALLOYS AND COMPOUNDS,816,11. |
| MLA | Jiang, Xuhong,et al."An ultrafine hyperbranched CdS/TiO2 nanolawn photoanode with highly efficient photoelectrochemical performance".JOURNAL OF ALLOYS AND COMPOUNDS 816(2020):11. |
入库方式： OAI收割
来源：海洋研究所
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