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Group VI transition metal dichalcogenides as antifouling transducers for electrochemical oxidation of catechol-containing structures
Electrochemistry Communications ( IF 5.4 ) Pub Date : 2020-03-29 , DOI: 10.1016/j.elecom.2020.106718
Daniel Rojas , Flavio Della Pelle , Michele Del Carlo , Dario Compagnone , Alberto Escarpa

In this work, we present a comprehensive study comparing the electrochemical performance of MX2 nanosheet-based electrodes (where M: Mo or W; X: S or Se). The nanosheets, obtained via a sonochemical strategy, were characterized using SEM and Raman spectroscopy to confirm the success of the exfoliation process. The electrochemical properties have been studied using a redox probe and flavonoids with an o-diphenol target moiety since the latter is involved in redox processes of high significance. It was revealed that selenides exhibit a better performance employing redox probes (higher k0 and lower RCT) and higher oxidation currents for oxidation of catechol-containing flavonoids (CCF). It is worthy of note that MX2 materials also have enhanced antifouling properties toward flavonoids compared with carbon-based electrodes.



中文翻译:

六族过渡金属二卤化物作为防污剂,用于电化学氧化含邻苯二酚的结构

在这项工作中,我们提供了一项全面的研究,比较了基于MX 2纳米片的电极(其中M:Mo或W; X:S或Se)的电化学性能。通过声化学策略获得的纳米片,使用SEM和拉曼光谱进行表征,以确认剥离过程的成功。已经使用氧化还原探针和具有邻二酚目标部分的类黄酮研究了电化学性质,因为后者参与了高度重要的氧化还原过程。结果表明,硒化物使用氧化还原探针表现出更好的性能(较高的k 0和较低的R CT)和更高的氧化电流,以氧化含邻苯二酚的类黄酮(CCF)。值得注意的是,与基于碳的电极相比,MX 2材料还具有增强的针对类黄酮的防污性能。

更新日期:2020-04-20
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