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题名:
A Systematic Study of the Mass Transport, Kinetic and Thermodynamic Properties of the Fe-III/II Process at Glassy Carbon and Boron-Doped Diamond Electrodes
作者: Lin, Mingyue1,3,4; Li, Jiezhen1; Pan, Dawei3; Bond, Alan M.1,2; Zhang, Jie1,2
刊名: ELECTROCHIMICA ACTA
ISSN号: 0013-4686
出版日期: 2017-09-01
卷号: 249, 页码:421-430
关键词: Fe-III/II process ; electron transfer kinetics ; Fourier transformed alternating current ; voltammetry ; medium effect ; electrode heterogeneity
DOI: 10.1016/j.electacta.2017.07.155
产权排序: 第3完成单位
通讯作者: Bond, Alan M.(Monash Univ, Sch Chem, Clayton, Vic 3800, Australia) ; Zhang, Jie(Monash Univ, Sch Chem, Clayton, Vic 3800, Australia)
英文摘要: The heterogeneous electron transfer kinetics (k(0) values), mass transport and thermodynamic properties (E-0 values) associated with the Fe-III/II process have been determined in aqueous solutions containing 0.1 M HCl, HClO4, bis(trifluoromethanesulfonyl) imide (HNTf2) or 0.05 M silicotungstic acid (H-4[alpha-SiW12O40]) supporting electrolytes. The diffusion coefficient (D) values for Fe-III and Fe-II are dependent on the radius of the electrolyte anion and follow the order D(SiW12O404-) < D(NTf2-) < D (ClO4-) < D(Cl-). The k(0) values are found to be smaller at boron doped diamond (BDD) electrodes than glassy carbon (GC) electrodes, and influenced by the ion-pairing between electrolyte anions and FeIII and FeII. Based on the formal potential value, HNTf2 is found to be a more innocent electrolyte than commonly used HClO4 with regard to determine the true k(0) values of the outer-sphere [Fe(H2O)(6)](3+/2+) process. Fourier transformed large amplitude alternating current voltammetry, which provides favorable signal to background ratio, was used to determine k(0) values associated with the Fe-III/II process in H-4[alpha-SiW12O40] and HNTf2 electrolyte media at GC electrodes and probe the implications of the heterogeneity of the BDD electrode surface on the electrode kinetic determination in H-4[alpha-SiW12O40] electrolyte media. (C) 2017 Elsevier Ltd. All rights reserved.
研究领域[WOS]: Electrochemistry
项目资助者: University of Chinese Academy of Sciences ; Monash University ; Australian Research Council
关键词[WOS]: THIN-FILM ELECTRODES ; ALTERNATING-CURRENT VOLTAMMETRY ; CYCLIC VOLTAMMETRY ; IONIC LIQUIDS ; ELECTROCHEMICAL-BEHAVIOR ; DISK ELECTRODE ; REDOX COUPLE ; SURFACE ; REDUCTION ; CHEMISTRY
文章类型: Article
收录类别: SCI ; ISTP
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000410675100048
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内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/23435
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
2.Monash Univ, ARC Ctr Excellence Electrochem Sci, Clayton, Vic 3800, Australia
3.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res YIC, Shandong Prov Key Lab Coastal Environm Proc,YICCA, Yantai 264003, Shandong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Lin, Mingyue,Li, Jiezhen,Pan, Dawei,et al. A Systematic Study of the Mass Transport, Kinetic and Thermodynamic Properties of the Fe-III/II Process at Glassy Carbon and Boron-Doped Diamond Electrodes[J]. ELECTROCHIMICA ACTA,2017,249:421-430.
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