Chemically modified multiwall carbon nanotube composite electrodes: An assessment of fabrication strategies
Chemically modified multiwall carbon nanotube composite electrodes: An assessment of fabrication strategies
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DOI：
10.1016/j.electacta.2014.11.129
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发表时间：
2015-01-10
影响因子：
6.6
通讯作者：
Patel, Bhavik Anil
中科院分区：
文献类型：
--
作者：
Fagan-Murphy, Aidan;Allen, Marcus C.;Patel, Bhavik Anil
化学修饰电极已被广泛用于增强使用传统基础导电材料不容易检测的分析物的电化学监测。我们研究了不同的制备方法，以普鲁士蓝（PB）化学修饰多壁碳纳米管（MWCNT）复合电极。制备了复合电极，其中普鲁士蓝与多壁碳纳米管混合，其中普鲁士蓝涂覆在多壁碳纳米管复合电极上，并且其中通过在多壁碳纳米管表面上产生PB来修饰多壁碳纳米管。我们的研究结果表明，多壁碳纳米管修饰的PB电极提供了良好的灵敏度检测谷胱甘肽和特殊的稳定性，而多壁碳纳米管涂层PB电极提供了优异的灵敏度，但稳定性差。这些发现提供了重要的意义上的制造，适用性和使用的化学修饰电极的电分析。(C)2014爱思唯尔有限公司版权所有。
Chemically modified electrodes have been widely used to enhance electrochemical monitoring of analytes that are not easily detected using traditional base conductive materials. We have investigated different fabrication approaches to chemically modify multi-wall carbon nanotube (MWCNT) composite electrodes with Prussian blue (PB). Composite electrodes were made where Prussian blue was mixed with MWNCTs, where Prussian blue was coated on MWCNT composite electrodes and where MWCNTs were modified by generating PB on the surface of MWCNTs. Our findings indicate that MWCNT modified PB electrodes provided good sensitivity for the detection of glutathione and exceptional stability; whilst MWCNT coated PB electrodes provided excellent sensitivity but poor stability. Such findings provide important implications on the fabrication, suitability and use of chemically modified electrodes for electroanalysis. (C) 2014 Elsevier Ltd. All rights reserved.