Preparation of reproducible glassy carbon electrodes by removal of polishing impurities
Preparation of reproducible glassy carbon electrodes by removal of polishing impurities
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DOI：
10.1016/s0022-0728(02)01264-0
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发表时间：
2003-01-02
影响因子：
4.5
通讯作者：
McDermott, MT
中科院分区：
文献类型：
--
作者：
Kiema, GK;Aktay, M;McDermott, MT
本文介绍了一种简单而快速的电化学氧化过程，从玻璃碳（GC）表面去除抛光污染物。该方法包括在碱性介质中短时间（类似于10秒）氧化抛光的GC电极。利用轻敲模式扫描力显微镜（TM SFM）、X射线光电子能谱（XPS）和纳米压痕表面表征技术来跟踪抛光层的去除情况。对改性的GC表面进行了几次电化学表征，以评估除去微粒抛光层后电极反应性的变化。在阳极化GC电极上获得的电化学测量显示相对于抛光GC的更可再现的表面。(C)2002 Elsevier Science B.V.保留所有权利。
This paper describes a simple and rapid electrochemical oxidative procedure that removes polishing contaminants from glassy carbon (GC) surfaces. The method involves oxidation of polished GC electrodes in basic media for short periods of time (similar to10 s). Tapping mode scanning force microscopy (TM SFM), X-ray photoelectron spectroscopy (XPS) and nanoindentation surface characterization techniques were utilized to track the removal of the polishing layer. Several electrochemical characterizations of the modified GC surface were carried out to assess changes in electrode reactivity following removal of the microparticle polishing layer. Electrochemical measurements obtained on the anodized GC electrodes show a more reproducible surface relative to polished GC. (C) 2002 Elsevier Science B.V. All rights reserved.