Electrochemical synthesis of lepidocrocite thin films on gold substrate -: EQCM, IRRAS, SEM and XRD study

被引:48
作者
Antony, H [1 ]
Peulon, S [1 ]
Legrand, L [1 ]
Chaussé, K [1 ]
机构
[1] Univ DEvry Val DEssonne, CNRS, Lab Anal & Environm, CEA,UMR 8587, F-91025 Evry, France
关键词
lepidocrocite; thin film; electrochemical synthesis; IRRAS; orientation;
D O I
10.1016/j.electacta.2004.07.043
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Lepidocrocite thin films have been electrochemically synthesised on polycrystalline Au substrates following two ways, direct synthesis and synthesis via green rust (GR). The direct synthesis consists in oxidising Fe(II) species in a 0.4 M NaCl/0.02 M Met-Imidazole/0.01 M FeCl2 solution at pH 7.5. The synthesis via GR consists in converting a green rust thin film into lepidocrocite thin film by galvanostatic oxidation. The thin films have been characterised by means of electrochemical quartz crystal microbalance, scanning electron microscopy, X-ray diffraction and infrared reflection-absorption spectroscopy. (C) 2004 Published by Elsevier Ltd.
引用
收藏
页码:1015 / 1021
页数:7
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