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A study of the Fe(III)/Fe(II)-triethanolamine complex redox couple for redox flow battery application
Wen, YH; Zhang, HM; Qian, P; Zhou, HT; Zhao, P; Yi, BL; Yang, YS
关键词Redox Flow Battery Anolyte Iron-triethanolamine Complex Bromine
刊名ELECTROCHIMICA ACTA
2006-05-05
DOI10.1016/j.electacta.2005.10.040
51期:18页:3769-3775
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]PHOTOVOLTAIC SYSTEMS ; CYCLIC VOLTAMMETRY ; ENERGY ANALYSIS ; CELL ; PERFORMANCE ; KINETICS ; STORAGE
英文摘要The electrochemical behavior of the Fe(III)/Fe(II)-triethanolamine(TEA) complex redox couple in alkaline medium and influence of the concentration of TEA were investigated. A change of the concentration of TEA mainly produces the following two results. (1) With an increase of the concentration of TEA, the solubility of the Fe(III)-TEA can be increased to 0.6 M, and the solubility of the Fe(II)-TEA is up to 0.4 M. (2) In high concentration of TEA with the ratio of TEA to NaOH ranging from 1 to 6, side reaction peaks on the cathodic main reaction of the Fe(Ill)-TEA complex at low scan rate can be minimized. The electrode process of Fe(III)-TEA/Fe(II)-TEA is electrochemically reversible with higher reaction rate constant than the uncomplexed species. Constant current charge-discharge shows that applying anodic active materials of relatively high concentrations facilitates the improvement of cell performance. The open-circuit voltage of the Fe-TEA/Br-2 cell with the Fe(III)-TEA of 0.4 M, after full charging, is nearly 2.0 V and is about 32% higher than that of the all-vanadium batteries, together with the energy efficiency of approximately 70%. The preliminary exploration shows that the Fe(III)-TEA/Fe(II)-TEA couple is electrochemically promising as negative redox couple for redox flow battery (RFB) application. (c) 2005 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000237647300024
引用统计
被引频次:50[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140065
专题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, Peoples R China
2.Med Res Inst Chem Def, Beijing 100083, Peoples R China
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Wen, YH,Zhang, HM,Qian, P,et al. A study of the Fe(III)/Fe(II)-triethanolamine complex redox couple for redox flow battery application[J]. ELECTROCHIMICA ACTA,2006,51(18):3769-3775.
APA Wen, YH.,Zhang, HM.,Qian, P.,Zhou, HT.,Zhao, P.,...&Yang, YS.(2006).A study of the Fe(III)/Fe(II)-triethanolamine complex redox couple for redox flow battery application.ELECTROCHIMICA ACTA,51(18),3769-3775.
MLA Wen, YH,et al."A study of the Fe(III)/Fe(II)-triethanolamine complex redox couple for redox flow battery application".ELECTROCHIMICA ACTA 51.18(2006):3769-3775.
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