H2O2在具有纳米结构的Rh微电极上的电催化氧化

CORC > 厦门大学 > 2012年第18卷

	H2O2在具有纳米结构的Rh微电极上的电催化氧化; The Oxidation of Hydrogen Peroxide on Nanostructured Rhodium Microelectrodes
	PhilipN.Bartlett ; ThomasF.Esterle ; Philip N. Bartlett ; Thomas F. Esterle
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract9916.shtml
	2012-12-03
关键词	H2O2 Rh 微电极纳米孔易溶液晶模板电沉积 hydrogen peroxide rhodium microelectrode nanoporous lyotropic liquid crystal templated electrodeposition
英文摘要	在含有C12EO8(Octaethyleneglycol Monododecyl Ether)的H1溶致液晶相中Pt微电极上电沉积Rh介孔膜. 该电极在中性、低浓度（CH2O2 <10 mmol•L-1）条件下，对H2O2有较好的氧化还原响应及稳定性. 由于电流磁滞效应，H2O2在Rh介孔膜微电极上的氧化与电位相关，且遵循与Rh(OH)3有关的CEE（Chemical Reaction-Electron Transfer Reaction- Electron Transfer Reaction）反应机制. H2O2浓度较大时，孔电极表面其结合点位趋于饱和或在孔内溶液酸化的反应限制，电流可呈现一个平台. Rh介孔膜厚度小于200 nm的电极，H2O2浓度校正曲线符合膜孔反应一维扩散模型.; Mesoporous Rh films were deposited onto platinum microelectrodes from the H1 lyotropic liquid crystalline phase of C12EO8 (octaethyleneglycol monododecyl ether). The electrodes show well defined voltammetry for the oxidation and the reduction of hydrogen peroxide at low concentrations (<10 mmol•L-1) with excellent stability for operation at neutral pH. Based on the hysteresis in the current and the potential dependence the oxidation of hydrogen peroxide occurs through a CEE mechanism involving Rh(OH)3 on the mesoporous Rh electrode surface. At higher hydrogen peroxide concentrations the current reaches a plateau that is due to either saturation of the binding sites for hydrogen peroxide or limitation of the reaction due to acidification of the solution within the pores. For the thin films (below 200 nm) the hydrogen peroxide calibration curves we fitted to a one dimensional model for diffusion and reaction within the pores.; This work was supported by the EPSRC Grant EP/E0473X/1; This work was supported by the EPSRC Grant EP/E0473X/1; 作者联系地址：南安普顿大学化学系, 英国南安普顿 SO17 1BJ 1Now at: Department d’Enginyeria Quimica, Universitat Rovira i Virgili, Avinguda Pa?sos Catalans 26, 43007 Tarragona, Spain; Author's Address: Chemistry, University of Southampton, Southampton, SO17 1BJ, UK; 通讯作者E-mail：pnb@soton.ac.uk
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/58523]
专题	2012年第18卷
推荐引用方式 GB/T 7714	PhilipN.Bartlett,ThomasF.Esterle,Philip N. Bartlett,等. H2O2在具有纳米结构的Rh微电极上的电催化氧化, The Oxidation of Hydrogen Peroxide on Nanostructured Rhodium Microelectrodes[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract9916.shtml,2012.
APA	PhilipN.Bartlett,ThomasF.Esterle,Philip N. Bartlett,&Thomas F. Esterle.(2012).H2O2在具有纳米结构的Rh微电极上的电催化氧化.http://electrochem.xmu.edu.cn/CN/abstract/abstract9916.shtml.
MLA	PhilipN.Bartlett,et al."H2O2在具有纳米结构的Rh微电极上的电催化氧化".http://electrochem.xmu.edu.cn/CN/abstract/abstract9916.shtml (2012).