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Molecules
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Developments in Conducting Polymers: Applications for Electrochemistry
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Developments in Conducting Polymers: Applications for Electrochemistry

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Macromolecular Chemistry".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 4596

Special Issue Editor

Dr. Maria Manuela Silva

E-Mail Website
Guest Editor
Centro de Química e Departamento de Química, Universidade do Minho, Gualtar, 4710-057 Braga, Portugal
Interests: solid polymer electrolytes; natural polymers; batteries; smart windows; electrochromic devices
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Conducting polymers have emerged as a fascinating class of materials at the intersection of chemistry, materials science, and electrochemistry. These organic compounds possess a unique blend of properties, combining the flexibility and processability of polymers with the electrical conductivity of metals, while still retaining the structural characteristics of polymers.

Furthermore, over the past few decades, conducting polymers have garnered significant attention from researchers and technologists due to their diverse range of applications in the field of electrochemistry.

This Special Issue aims to gather the latest advances of applications and illustrate the versatility and significance of conducting polymers in the field of electrochemistry. Some of the notable applications for conducting polymers in electrochemistry include sensors, energy storage, electrochromic devices, and actuators, among others.

Dr. Maria Manuela Silva
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • conducting polymers
  • sensors
  • electrochemical applications
  • batteries

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Published Papers (3 papers)

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Research

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22 pages, 26866 KiB  
Article
Facile Synthesis of Novel Conducting Copolymers Based on N-Furfuryl Pyrrole and 3,4-Ethylenedioxythiophene with Enhanced Optoelectrochemical Performances Towards Electrochromic Application
by Huixian Li, Xiaomeng Sun, Datai Liu, Xinchang Liu, Xianchao Du, Shuai Li, Xiaojing Xing, Xinfeng Cheng, Dongqin Bi and Dongfang Qiu
Molecules 2025, 30(1), 42; https://doi.org/10.3390/molecules30010042 - 26 Dec 2024
Viewed by 587
Abstract
In this article, a series of novel conducting copolymers P(FuPy-co-EDOT) are prepared via cyclic voltammetry electropolymerization method by using N-furfuryl pyrrole (FuPy) and 3,4-ethylenedioxythiophene (EDOT) as comonomers. The molecular structure, surface morphology, electrochemical, and optical properties of the resulting copolymers are [...] Read more.
In this article, a series of novel conducting copolymers P(FuPy-co-EDOT) are prepared via cyclic voltammetry electropolymerization method by using N-furfuryl pyrrole (FuPy) and 3,4-ethylenedioxythiophene (EDOT) as comonomers. The molecular structure, surface morphology, electrochemical, and optical properties of the resulting copolymers are characterized in detail upon varying the feed ratios of FuPy/EDOT in the range of 1/1 to 1/9. The results demonstrate that the prepared P(FuPy-co-EDOT) copolymers with a higher proportion of EDOT units (FuPy/EDOT: 2/8~1/9) possess good redox activity, tunable optical absorption performances, and low band gaps (1.75~1.86 eV). Spectroelectrochemistry studies indicate that the resulting copolymers with increased EDOT units show strengthened electrochromic characteristics, exhibiting a red-to-green-to-blue multicolor reversible transition, especially for the P(FuPy1-co-EDOT9) copolymer films. They also show increased optical contrast (9~34%), fast response time (0.8~2.4 s), and good coloring efficiency (110~362 cm2 C−1). Additionally, the complementary bilayer P(FuPy-co-EDOT)/PEDOT electrochromic devices (ECDs) are also assembled and evaluated to hold excellent electrochromic switching performances with relatively high optical contrast (25%), rapid response time (0.9 s), and satisfactory coloring efficiency (416 cm2 C−1). Together with the superior open circuit memory and cycling stability, they can be used as a new type of electrochromic material and have considerable prospects as promising candidates for electrochromic devices. Full article
(This article belongs to the Special Issue Developments in Conducting Polymers: Applications for Electrochemistry)
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12 pages, 2682 KiB  
Article
Fabrication of Ternary Titanium Dioxide/Polypyrrole/Phosphorene Nanocomposite for Supercapacitor Electrode Applications
by Seungho Ha and Keun-Young Shin
Molecules 2024, 29(10), 2172; https://doi.org/10.3390/molecules29102172 - 7 May 2024
Cited by 1 | Viewed by 1421
Abstract
In this paper, we report a titanium dioxide/polypyrrole/phosphorene (TiO2/PPy/phosphorene) nanocomposite as an active material for supercapacitor electrodes. Black phosphorus (BP) was fabricated by ball milling to induce a phase transition from red phosphorus, and urea-functionalized phosphorene (urea-FP) was obtained by urea-assisted [...] Read more.
In this paper, we report a titanium dioxide/polypyrrole/phosphorene (TiO2/PPy/phosphorene) nanocomposite as an active material for supercapacitor electrodes. Black phosphorus (BP) was fabricated by ball milling to induce a phase transition from red phosphorus, and urea-functionalized phosphorene (urea-FP) was obtained by urea-assisted ball milling of BP, followed by sonication. TiO2/PPy/phosphorene nanocomposites can be prepared via chemical oxidative polymerization, which has the advantage of mass production for a one-pot synthesis. The specific capacitance of the ternary nanocomposite was 502.6 F g−1, which was higher than those of the phosphorene/PPy (286.25 F g−1) and TiO2/PPy (150 F g−1) nanocomposites. The PPy fully wrapped around the urea-FP substrate provides an electron transport pathway, resulting in the enhanced electrical conductivity of phosphorene. Furthermore, the assistance of anatase TiO2 nanoparticles enhanced the structural stability and also improved the specific capacitance of the phosphorene. To the best of our knowledge, this is the first report on the potential of phosphorene hybridized with conducting polymers and metal oxides for practical supercapacitor applications. Full article
(This article belongs to the Special Issue Developments in Conducting Polymers: Applications for Electrochemistry)
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Review

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46 pages, 13682 KiB  
Review
Recent Advances in the Tunable Optoelectromagnetic Properties of PEDOTs
by Ling Zhu, Qi Liu, Yuqian Zhang, Hui Sun, Shuai Chen, Lishan Liang, Siying An, Xiaomei Yang and Ling Zang
Molecules 2025, 30(1), 179; https://doi.org/10.3390/molecules30010179 - 4 Jan 2025
Viewed by 1904
Abstract
Conducting polymers represent a crucial class of functional materials with widespread applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have garnered significant attention due to their distinctive optical, electronic, and magnetic properties, as well as their exceptional tunability. These properties [...] Read more.
Conducting polymers represent a crucial class of functional materials with widespread applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have garnered significant attention due to their distinctive optical, electronic, and magnetic properties, as well as their exceptional tunability. These properties often exhibit intricate interdependencies, manifesting as synergistic, concomitant, or antagonistic relationships. In optics, PEDOTs are renowned for their high transparency and unique photoelectric responses. From an electrical perspective, they display exceptional conductivity, thermoelectric, and piezoelectric performance, along with notable electrochemical activity and stability, enabling a wide array of electronic applications. In terms of magnetic properties, PEDOTs demonstrate outstanding electromagnetic shielding efficiency and microwave absorption capabilities. Moreover, these properties can be precisely tailored through molecular structure modifications, chemical doping, and composite formation to suit various application requirements. This review systematically examines the mechanisms underlying the optoelectromagnetic properties of PEDOTs, highlights their tunability, and outlines prospective research directions. By providing critical theoretical insights and technical references, this review aims to advance the application landscape of PEDOTs. Full article
(This article belongs to the Special Issue Developments in Conducting Polymers: Applications for Electrochemistry)
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