Integrating a dual-silicon photoelectrochemical cell into a redox flow battery for unassisted photocharging

doi:10.1038/ncomms11474

	Integrating a dual-silicon photoelectrochemical cell into a redox flow battery for unassisted photocharging
	Liao, Shichao 1,2; Zong, Xu 1; Seger, Brian 3; Pedersen, Thomas 4; Yao, Tingting 1; Ding, Chunmei 1; Shi, Jingying 1; Chen, Jian 1; Li, Can 1
刊名	NATURE COMMUNICATIONS
	2016-05-01
卷号	7
ISSN号	2041-1723
DOI	10.1038/ncomms11474
文献子类	Article
英文摘要	Solar rechargeable flow cells (SRFCs) provide an attractive approach for in situ capture and storage of intermittent solar energy via photoelectrochemical regeneration of discharged redox species for electricity generation. However, overall SFRC performance is restricted by inefficient photoelectrochemical reactions. Here we report an efficient SRFC based on a dual-silicon photoelectrochemical cell and a quinone/bromine redox flow battery for in situ solar energy conversion and storage. Using narrow bandgap silicon for efficient photon collection and fast redox couples for rapid interface charge injection, our device shows an optimal solar-to-chemical conversion efficiency of similar to 5.9% and an overall photon-chemical-electricity energy conversion efficiency of similar to 3.2%, which, to our knowledge, outperforms previously reported SRFCs. The proposed SRFC can be self-photocharged to 0.8V and delivers a discharge capacity of 730 mAhl(-1). Our work may guide future designs for highly efficient solar rechargeable devices.
WOS关键词	ATOMIC LAYER DEPOSITION ; HYDROGEN GENERATION ; WATER OXIDATION ; SOLAR-ENERGY ; SEMICONDUCTOR ELECTRODES ; SULFIDE CATALYST ; VANADIUM REDOX ; STORAGE ; PHOTOANODES ; COUPLES
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000375456300001
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170838]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Shi, Jingying; Chen, Jian; Li, Can
作者单位	1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, State Key Lab Catalysis,iChEM, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark 4.Tech Univ Denmark, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark
推荐引用方式 GB/T 7714	Liao, Shichao,Zong, Xu,Seger, Brian,et al. Integrating a dual-silicon photoelectrochemical cell into a redox flow battery for unassisted photocharging[J]. NATURE COMMUNICATIONS,2016,7.
APA	Liao, Shichao.,Zong, Xu.,Seger, Brian.,Pedersen, Thomas.,Yao, Tingting.,...&Li, Can.(2016).Integrating a dual-silicon photoelectrochemical cell into a redox flow battery for unassisted photocharging.NATURE COMMUNICATIONS,7.
MLA	Liao, Shichao,et al."Integrating a dual-silicon photoelectrochemical cell into a redox flow battery for unassisted photocharging".NATURE COMMUNICATIONS 7(2016).