Electrooxidation of Formamidine Disulfide Simultaneously Investigated by On‐Line High Performance Liquid Chromatography and Cyclic Voltammetry

ChemistryOpen

Na Feng¹  Dr. Wei Zhang²  Dr. Yang Liu²  Dr. Hainan Luo²  Dr. Fengli Li²  Baoying Zhang²  Yuyan Zhao² 

[1] College of Chemical Engineering Yangzhou Polytechnic Institute Yangzhou China;College of Chemistry Chemical Engineering and Materials Science Zaozhuang University Zaozhuang China;

关键词: formamidine disulfide;    electro-oxidation reactions;    forced convection;    HPLC;    platinum electrodes;   

DOI  :  10.1002/open.202100197

来源: DOAJ

【 摘 要 】

Abstract The electro‐oxidation of formamidine disulfide, an important sulfur‐containing compound, was simultaneously investigated with on‐line high‐performance liquid chromatography and cyclic voltammetry. Using a home‐made microporous sampler located at the electrode interface, the solution on the electrode surface was in situ sampled and analyzed. The electrochemical scanning was synchronously performed, which allowed the electro‐oxidation products to be detected at a given potential. The main products on the surface of platinum electrode were found to be thiourea, formamidine sulfinic acid, cyanamide, and elemental sulfur. Forced convection arising from the sampling played an important role in the electrochemical oxidation. The extraction of electrode surface solution promoted the renewal of reactant and its intermediates, which induced the change of cyclic voltammetry curve. The forced convection also contributed to the redox peak current of the species on the cyclic voltammetry curves through the change of concentration of reactant and its intermediates. This technique can help to explore the reaction mechanism of complex electrochemical reactions.

【 授权许可】

Unknown