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DOI	10.1016/j.scib.2020.03.041
	An integrated thermoelectric-assisted photoelectrochemical system to boost water splitting
	Kang Y.; Chen R.; Zhen C.; Wang L.; Liu G.; Cheng H.-M.
发表日期	2020
ISSN	20959273
起始页码	1163
结束页码	1169
卷号	65 期号:14
英文摘要	Common solar-driven photoelectrochemical (PEC) cells for water splitting were designed by using semiconducting photoactive materials as working photoelectrodes to capture sunlight. Due to the thermodynamic requirement of 1.23 eV and kinetic energy loss of about 0.6 eV, a photo-voltage of 1.8 V produced by PEC cells is generally required for spontaneous water splitting. Therefore, the minimum bandgap of 1.8 eV is demanded for photoactive materials in single-photoelectrode PEC cells, and the bandgap of about 1 eV for back photoactive materials is appropriate in tandem PEC cells. All these PEC cells cannot effectively utilize the infrared light from 1250 to 2500 nm. In order to realize the full spectrum utilization of solar light, here, we develop a solar-driven PEC water splitting system integrated with a thermoelectric device. The key feature of this system is that the thermoelectric device produces a voltage as an additional bias for the PEC system by using the temperature difference between the incident infrared-light heated aqueous electrolyte in the PEC cell as the hot source and unirradiated external water as the cold source. Compared to a reference PEC system without the thermoelectric device, this system has a significantly improved overall water splitting activity of 1.6 times and may provide a strategy for accelerating the application of full spectrum solar light-driven PEC cells for hydrogen production. © 2020 Science China Press
关键词	Hydrogen Photoelectrochemical Thermoelectric Water splitting
英文关键词	Cells; Cytology; Electrolytes; Energy dissipation; Energy gap; Hydrogen production; Kinetic energy; Kinetics; Solar power generation; Aqueous electrolyte; Photoactive materials; Photoelectrochemical system; Photoelectrochemicals; Solar-light-driven; Temperature differences; Thermoelectric devices; Water splitting system; Photoelectrochemical cells
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207084
作者单位	Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, China; Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia; Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, 518055, China; Advanced Technology Institute, University of Surrey, Surrey, GU2 7XH, United Kingdom
推荐引用方式 GB/T 7714	Kang Y.,Chen R.,Zhen C.,et al. An integrated thermoelectric-assisted photoelectrochemical system to boost water splitting[J],2020,65(14).
APA	Kang Y.,Chen R.,Zhen C.,Wang L.,Liu G.,&Cheng H.-M..(2020).An integrated thermoelectric-assisted photoelectrochemical system to boost water splitting.Science Bulletin,65(14).
MLA	Kang Y.,et al."An integrated thermoelectric-assisted photoelectrochemical system to boost water splitting".Science Bulletin 65.14(2020).