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首页> 外文期刊>Electroanalysis >Influence of the Solvent on the 'Casting' Methodology for MWCNT-Modified Glassy Carbon and Platinum Electrodes
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Influence of the Solvent on the 'Casting' Methodology for MWCNT-Modified Glassy Carbon and Platinum Electrodes

机译：溶剂对MWCNT修饰的玻碳和铂电极“浇铸”方法的影响

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摘要

The choice of electrode material and surface preparation method are usually dictated by the suitability of the electrode to observe an electrochemical parameter, such as heterogeneous electron transfer rate, surface coverage, or redox potential. Thus, the glassy carbon (GC) and platinum (Pt) electrodes were modified with multiwalled carbon nanotubes (MWCNT) by direct "casting" modification using nine different aliquots of solvents. After drying at room temperature, the modified electrode showed distinct redox peaks corresponding to ferrocyanide oxidation/reduction. Using chemometrics, the cyclic voltammograms with higher current intensity were obtained for those in which ethanol, water and acetone as dispersing agents were used for GCE and dimethylformamide, water and acetone for Pt electrode modification.
机译：电极材料的选择和表面制备方法通常取决于电极是否适合观察电化学参数，例如异质电子传输速率，表面覆盖率或氧化还原电势。因此，通过使用九种不同等分的溶剂直接进行“浇铸”改性，可以用多壁碳纳米管（MWCNT）改性玻碳（GC）和铂（Pt）电极。在室温下干燥后，修饰的电极显示出明显的氧化还原峰，对应于亚铁氰化物的氧化/还原。使用化学计量学，对于乙醇，水和丙酮作为分散剂用于GCE，二甲基甲酰胺，水和丙酮用于Pt电极修饰的那些，获得了具有更高电流强度的循环伏安图。

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