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Spectroelectrochemical investigation of electrodeposited polypyrrole complexes with sulfonated polyelectrolytesстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 июня 2021 г.
- Авторы: Gribkova O.L., Kabanova V.A., Iakobson O.D., Nekrasov A.A.
- Журнал: Electrochimica Acta
- Том: 382
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 138307
- DOI: 10.1016/j.electacta.2021.138307
- Аннотация: Films of polypyrrole(PPy)-polyelectrolyte(PE) complexes have high potential as active material in bio- sensing and biomedical applications due to high hydrophilicity and biocompatibility, as well as, as an electroactive polymer matrix in electrode materials for rechargeable lithium batteries and supercapac- itors. Comparative study is presented on the influence of PE structure on the properties of PPy-PE complexes. PPy films were prepared by pyrrole electrochemical polymerization in cyclic voltammetry, potentio- and galvanostatic regimes in aqueous solutions of acid or salt forms of sulfonated polyelec- trolytes (PEs) with different flexibility of the polymer backbone. Electrochemical polymerization of pyr- role in these conditions results in obtaining high-quality polymer films efficiently rechargeable in aqueous and nonaqueous media. The films obtained were characterized by cyclic voltammetry, UV-Vis-NIR spec- troelectrochemistry in aqueous and nonaqueous media, as well as, by Raman spectroelectrochemistry in aqueous medium. Gaussian deconvolution of the Raman spectra in the range of 850–1150 cm −1 allowed one to trace peculiarities of polaron-bipolaron transitions depending on the PE structure. It was shown that the films of PPy complexes with the salt forms of rigid-chain PEs had redox numbers comparable to those of the complexes with the flexible-chain PEs, but they were more stable during CV cycling in nonaqueous medium.
- Добавил в систему: Кабанова Варвара Алексеевна