Overoxidized poly(3,4-ethylenedioxythiophene)-overoxidized polypyrrole composite films with enhanced electrocatalytic ability for rutin and luteolin determination

IF 4.3 3区工程技术 Q2 ENGINEERING, CHEMICAL

Frontiers of Chemical Science and Engineering Pub Date : 2023-03-13 DOI:10.1007/s11705-022-2262-z

Rongqian Meng, Jianke Tang, Hong Yang, Lijun Guo, Yongbo Song, Qiaoling Li, Yulan Niu

{"title":"Overoxidized poly(3,4-ethylenedioxythiophene)-overoxidized polypyrrole composite films with enhanced electrocatalytic ability for rutin and luteolin determination","authors":"Rongqian Meng, Jianke Tang, Hong Yang, Lijun Guo, Yongbo Song, Qiaoling Li, Yulan Niu","doi":"10.1007/s11705-022-2262-z","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, a simple and effective method was proposed to improve the electrocatalytic ability of overoxidized poly(3,4-ethylenedioxythiophene)-overoxidized polypyrrole composite films modified on glassy carbon electrode for rutin and luteolin determination. The composite electrode was prepared by cyclic voltammetry copolymerization with LiClO<sub>4</sub>-water as the supporting electrolyte. The peak current of rutin and luteolin on the composite electrode gradually decreased or even disappeared with the increase in the positive potential limit. After incubation in NaOH-ethanol solution with a volume ratio of 1:1, the composite electrodes prepared at positive potential limit greater than 1.5 V exhibited enhanced differential pulse voltammetry peak currents, reduced charge transfer resistance, larger effective specific surface area and higher electron transfer rate constant. The composite electrode prepared in the potential range of 0–1.7 V showed optimal electrocatalytic performance. The X-ray photoelectron spectroscopy results indicated that the content of −SO<sub>2</sub>/−SO and −C=N− groups in the composite film increased significantly after incubation. Further, the Raman spectra and Fourier transform infrared spectra revealed that the thiophene ring structure changed from benzene-type to quinone-type, and the quinone-type pyrrole ring was formed. The electrocatalytic mechanism of the composite film was proposed based on the experimental results and further verified by Density Functional Theory calculation.</p><figure><div><div><div><picture><source><img></source></picture></div></div></div></figure></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"17 6","pages":"735 - 748"},"PeriodicalIF":4.3000,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers of Chemical Science and Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11705-022-2262-z","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, a simple and effective method was proposed to improve the electrocatalytic ability of overoxidized poly(3,4-ethylenedioxythiophene)-overoxidized polypyrrole composite films modified on glassy carbon electrode for rutin and luteolin determination. The composite electrode was prepared by cyclic voltammetry copolymerization with LiClO₄-water as the supporting electrolyte. The peak current of rutin and luteolin on the composite electrode gradually decreased or even disappeared with the increase in the positive potential limit. After incubation in NaOH-ethanol solution with a volume ratio of 1:1, the composite electrodes prepared at positive potential limit greater than 1.5 V exhibited enhanced differential pulse voltammetry peak currents, reduced charge transfer resistance, larger effective specific surface area and higher electron transfer rate constant. The composite electrode prepared in the potential range of 0–1.7 V showed optimal electrocatalytic performance. The X-ray photoelectron spectroscopy results indicated that the content of −SO₂/−SO and −C=N− groups in the composite film increased significantly after incubation. Further, the Raman spectra and Fourier transform infrared spectra revealed that the thiophene ring structure changed from benzene-type to quinone-type, and the quinone-type pyrrole ring was formed. The electrocatalytic mechanism of the composite film was proposed based on the experimental results and further verified by Density Functional Theory calculation.

查看原文本刊更多论文

超氧化聚(3,4-乙烯二氧噻吩)-超氧化聚吡咯复合膜电催化测定芦丁和木犀草素的性能增强

本研究提出了一种简单有效的方法来提高玻碳电极修饰过氧化聚(3,4-乙烯二氧噻吩)-过氧化聚吡咯复合膜测定芦丁和木犀草素的电催化能力。以liclo4 -水为支撑电解质，采用循环伏安法共聚制备复合电极。复合电极上的芦丁和木犀草素的峰值电流随着正电位极限的增大而逐渐减小甚至消失。在体积比为1:1的naoh -乙醇溶液中孵育后，在大于1.5 V的正电位极限下制备的复合电极，其差分脉冲伏安峰值电流增强，电荷转移电阻减小，有效比表面积增大，电子转移速率常数增大。在0 ~ 1.7 V电势范围内制备的复合电极电催化性能最佳。x射线光电子能谱结果表明，复合膜中−SO2/−SO和−C=N−基团的含量显著增加。拉曼光谱和傅里叶变换红外光谱显示，噻吩环结构由苯型转变为醌型，并形成醌型吡咯环。根据实验结果提出了复合膜的电催化机理，并通过密度泛函理论计算进一步验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Frontiers of Chemical Science and Engineering ENGINEERING, CHEMICAL-

CiteScore

7.60

自引率

6.70%

发文量

868

审稿时长

1 months

期刊介绍： Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.