Studies on iron (Fe3+/Fe2+)-complex/bromine (Br-2/Br-) redox flow cell in sodium acetate solution

	Studies on iron (Fe3+/Fe2+)-complex/bromine (Br-2/Br-) redox flow cell in sodium acetate solution
	Wen, YH ; Zhang, HM ; Qian, P ; Zhou, HT ; Zhao, P ; Yi, BL ; Yang, YS
刊名	journal of the electrochemical society
	2006
卷号	153 期号:5 页码:a929-a934
英文摘要	the formal potential of the fe(iii)/fe(ii) couple shifts markedly in the negative direction by complexation with ethylenediamine tetraacetate (edta), oxalate, and citrate. the potentials of the complexes with edta and oxalate are less ph-dependent than with citrate. but, the relatively high ph of around 6.0 is favorable electrochemically due to high corresponding currents. complexation of fe(iii)/fe(ii) couple can provide fast electrode kinetics except for the complex with citrate. but, the solubility of the complex with citrate is up to 0.8 m. charge-discharge measurements were conducted with the iron-complex/br-2 redox cells. the results show that performance of the cells with 0.1 m fe(iii)/fe(ii)-oxalate or fe(iii)/fe(ii)-citrate is relatively poor due to slow kinetics for the fe(iii)/fe(ii)-citrate and the unstability of the ferric form for the fe(iii)/fe(ii)-oxalate, whereas performance of the iron-citrate/br-2 cell is improved considerably by increasing concentration of the fe(iii)-citrate complex. also, energy efficiencies of up to approximately 80 and 70% could be obtained for the cell with 0.1 m fe(iii)/fe(ii)-edta and 0.8 m fe(iii)/fe(ii)-citrate, respectively. the preliminary study shows that novel br-2/iron-complex cells are technically feasible in redox flow batteries but need further investigation. (c) 2006 the electrochemical society.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; materials science, coatings & films
研究领域[WOS]	electrochemistry ; materials science
关键词[WOS]	electrochemical energy-storage ; photovoltaic systems ; batteries ; couples ; phenanthroline ; performance ; complexes ; ligands
收录类别	SCI
语种	英语
WOS记录号	WOS:000236516000021
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140097]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Full Cell R&D Ctr, Dalian 116023, Liaoning, Peoples R China 2.Res Inst Chem Def, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wen, YH,Zhang, HM,Qian, P,et al. Studies on iron (Fe3+/Fe2+)-complex/bromine (Br-2/Br-) redox flow cell in sodium acetate solution[J]. journal of the electrochemical society,2006,153(5):a929-a934.
APA	Wen, YH.,Zhang, HM.,Qian, P.,Zhou, HT.,Zhao, P.,...&Yang, YS.(2006).Studies on iron (Fe3+/Fe2+)-complex/bromine (Br-2/Br-) redox flow cell in sodium acetate solution.journal of the electrochemical society,153(5),a929-a934.
MLA	Wen, YH,et al."Studies on iron (Fe3+/Fe2+)-complex/bromine (Br-2/Br-) redox flow cell in sodium acetate solution".journal of the electrochemical society 153.5(2006):a929-a934.