A new SiP QDs/TiO2 NRs composite catalyst with Al2O3 passivation layer for enhanced photoelectrochemical water splitting | |
Department | 固体润滑国家重点实验室(LSL) |
Sainan Zhang1,2; Tongtong Yu2,3; Ying Liu1; Min Feng2,3; Xiaojuan Li2; Weixiang Sun3; Daoai Wang2,3 | |
The second department | 摩擦物理与传感研究组 |
2022 | |
Source Publication | Chemical Engineering Journal |
Volume | 429Issue:无Pages:132248 |
Abstract | Silicon phosphide (SiP) is a new type of IV–V two-dimensional material with high thermal stability and adjustable bandgap, and it has broad prospects in optics, electricity, and photocatalysis. However, the practical application of SiP for photoelectrochemical (PEC) water splitting was rarely studied. Herein, for the first time, SiP quantum dots (QDs) were introduced as a hole-migration cocatalyst coupled with TiO2 nanorods (NRs) via a hydrothermal and continuous dip coating method, and then SiP QDs/TiO2 NRs/Al2O3 was obtained by deposition of Al2O3 layer through atomic layer deposition technology. The photocurrent density of SiP QDs/TiO2 NRs/ Al2O3 reached 2.14 mA cm−2 at 1.23 V versus RHE, and the IPCE value reached 65.04% at the wavelength of 375 nm under simulated solar light (100 mW cm−2); these values are nearly 3.29 and 4.88 times that of pure TiO2 NRs, respectively. The enhanced PEC properties may be attributed to the enhanced light harvesting capability and the effective transport of photogenerated holes through the synergistic effects between SiP QDs and Al2O3 passivation layer, which indicates the great potential in the hydrogen generation of solar energy. |
If | 16.744 |
Language | 英语 |
compositor | 第二作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/29907 |
Collection | 固体润滑国家重点实验室(LSL) 青岛研发中心/青岛市资源化学与新材料研究中心 |
Corresponding Author | Ying Liu; Daoai Wang |
Affiliation | 1.Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China 2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3.Qingdao Center of Resource Chemistry and New Materials, Qingdao 266100, China |
Recommended Citation GB/T 7714 | Sainan Zhang,Tongtong Yu,Ying Liu,et al. A new SiP QDs/TiO2 NRs composite catalyst with Al2O3 passivation layer for enhanced photoelectrochemical water splitting[J]. Chemical Engineering Journal,2022,429(无):132248. |
APA | Sainan Zhang.,Tongtong Yu.,Ying Liu.,Min Feng.,Xiaojuan Li.,...&Daoai Wang.(2022).A new SiP QDs/TiO2 NRs composite catalyst with Al2O3 passivation layer for enhanced photoelectrochemical water splitting.Chemical Engineering Journal,429(无),132248. |
MLA | Sainan Zhang,et al."A new SiP QDs/TiO2 NRs composite catalyst with Al2O3 passivation layer for enhanced photoelectrochemical water splitting".Chemical Engineering Journal 429.无(2022):132248. |
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张赛楠-CEJ.pdf(9257KB) | 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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