Kinetic comparison between ferric ion and decamethyferrocene at the liquid/liquid interface as studied by scanning electrochemical microscopy

Kinetic comparison between ferric ion and decamethyferrocene at the liquid/liquid interface as studied by scanning electrochemical microscopy
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通过扫描电化学显微镜研究三价铁离子和十甲基二茂铁在液/液界面处的动力学比较

DOI:
10.1016/j.cclet.2009.08.014
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发表时间:
2010
影响因子:
9.1
通讯作者:
CunWu Dong
CunWu Dong
中科院分区:
化学1区
文献类型:
--
作者:
XiuHui Liu;JunYing Ma;WenTing Wang;XiaoQuan Lu;CunWu Dong

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首次用扫描电化学显微镜(SECM)研究了十甲基二茂铁(DMFe)在硝基苯(NB)中与铁离子在水相中的电子转移过程。与Fe(CN)63−-DMFe体系相比,Fe~(3+)-DMFe体系的驱动力较大,但ET速率较低,这可能是由于重组能的影响。此外,还探讨了常见离子对反应速率常数的影响,结果表明Fe(CN)63−和DMFe之间的ET机理更加复杂。
Comparison in electron transfer (ET) processes from decamethyferrocene (DMFe) in nitrobenzene (NB) to ferric ion in aqueous phase was investigated for the first time by the scanning electrochemical microscopy (SECM). As compared with the system of Fe(CN)63−–DMFe, the ET rate obtained from Fe3+–DMFe was lower in spite of larger driving force, which may arise from the effect of reorganization energy. Otherwise, the effect of common ion on rate constants was also probed and results suggested additional complexity of the ET mechanism between Fe(CN)63−and DMFe.
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