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Electrochemistry of Organic Compounds and Their Applications

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A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (10 March 2024) | Viewed by 7795

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Special Issue Editor

Dr. Przemysław Ledwoń

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Guest Editor

Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
Interests: conjugated polymers; electrochemistry; spectroelectrochemistry; electrochromism; photovoltaics

Special Issue Information

Dear Colleagues,

Electroactive organic compounds are an important and often studied group of materials for multiple applications including photovoltaics, electrochromic devices, sensors, organic light emitting diodes, and energy storage. The wide range of potential applications of π-conjugated polymers and low molecular weight systems requires the use of many characterization techniques, including the use of electrochemical and spectroelectrochemical methods.

This Special Issue, entitled “Electrochemistry of Organic Compounds and Their Applications,” mainly focuses on electrochemical studies of organic compounds and their applications. The aim of this Special Issue is to report electrochemical properties of new organic compounds or new research on known materials. This may include such research areas as the synthesis and characteristisation of new organic compounds, detailed electrochemical and spectroelectrochemical studies, and practical applications of electroactive organic materials.

It is my pleasure to invite you to submit a manuscript for this Special Issue. Original research manuscripts and reviews are welcome.

Dr. Przemysław Ledwoń
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. Materials 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 2600 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

organic electronics
conjugated polymers
electrochemistry
cyclic voltammetry
electrochromism
sensors
semiconductors
photovoltaics
OLEDs
spectroelectrochemistry
DSSC

Published Papers (4 papers)

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Research

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13 pages, 4155 KiB

Open AccessEditor’s ChoiceArticle

Cyclic Voltammetry of C.I. Disperse Orange 62 in an Aqueous Electrolyte

by Thomas Bechtold, Noemí Aguiló-Aguayo and Tung Pham

Materials 2023, 16(21), 6901; https://doi.org/10.3390/ma16216901 - 27 Oct 2023

Viewed by 735

Abstract

Disperse dyes are an important group of colorants for dyeing polyester fibers. Approximately 30.000 tons of disperse dyes are released into the waste water annually from spent dyebaths. Therefore, methods for decolorizing such dyes are of general interest. The reductive after-treatment of disperse dyes using reducing agents, such as Na₂S₂O₄, is a widely used process to improve rub fastness through dye reduction. Electrochemical dye reduction could be an alternative process for reductive dye treatment. In this work C.I. Disperse Orange 62 was used as a representative dye to study the direct cathodic reduction of a disperse dye with cyclic voltammetry. As anticipated for dispersed organic matter, relatively low current densities were observed, which strongly depend on the state of dispersion of the dye. The current density was increased by using dispersions prepared through dye precipitation from DMF solution and by the use of N-cetyl-N,N,N,-trimethyl-ammonium bromide as a cationic surfactant. The results demonstrate the successful cathodic reduction of a dispersed organic dye; however, the low solubility of the reaction products in the aqueous electrolyte hinders an efficient cathodic dye reduction. Full article

(This article belongs to the Special Issue Electrochemistry of Organic Compounds and Their Applications)

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16 pages, 3622 KiB

Open AccessArticle

V-Porphyrins Encapsulated or Supported on Siliceous Materials: Synthesis, Characterization, and Photoelectrochemical Properties

by Zhannur K. Myltykbayeva, Anar Seysembekova, Beatriz M. Moreno, Rita Sánchez-Tovar, Ramón M. Fernández-Domene, Alejandro Vidal-Moya, Benjamín Solsona and José M. López Nieto

Materials 2022, 15(21), 7473; https://doi.org/10.3390/ma15217473 - 25 Oct 2022

Cited by 1 | Viewed by 1165

Abstract

Metalloporphyrin-containing mesoporous materials, named VTPP@SBA, were prepared via a simple anchoring of vanadyl porphyrin (5,10,15,20-Tetraphenyl-21H,23H-porphine vanadium(IV) oxide) through a SBA-15-type mesoporous material. For comparison, vanadyl porphyrin was also impregnated on SiO₂ (VTPP/SiO₂). The characterization results of catalysts by XRD, FTIR, DR-UV-vis, and EPR confirm the incorporation of vanadyl porphyrin within the mesoporous SBA-15. These catalysts have also been studied using electrochemical and photoelectrochemical methods. Impedance measurements confirmed that supporting the porphyrin in silica improved the electrical conductivity of samples. In fact, when using mesoporous silica, current densities associated with oxidation/reduction processes appreciably increased, implying an enhancement in charge transfer processes and, therefore, in electrochemical performance. All samples presented n-type semiconductivity and provided an interesting photoelectrocatalytic response upon illumination, especially silica-supported porphyrins. This is the first time that V-porphyrin-derived materials have been tested for photoelectrochemical applications, showing good potential for this use. Full article

(This article belongs to the Special Issue Electrochemistry of Organic Compounds and Their Applications)

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Review

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25 pages, 6583 KiB

Open AccessReview

Application and Research Progress of Covalent Organic Frameworks for Solid-State Electrolytes in Lithium Metal Batteries

by Yufeng Qiao, Xiaoyue Zeng, Haihong Wang, Jianlin Long, Yanhong Tian, Jinle Lan, Yunhua Yu and Xiaoping Yang

Materials 2023, 16(6), 2240; https://doi.org/10.3390/ma16062240 - 10 Mar 2023

Cited by 4 | Viewed by 1902

Abstract

Covalent organic frameworks (COFs) are a class of crystalline porous organic polymers with periodic networks that are constructed from small molecular units via covalent bonds, which have low densities, high porosity, large specific surface area, and ease of functionalization. The one-dimension nanochannels in COFs offer an effective means of transporting lithium ions while maintaining a stable structure over a wide range of temperatures. As a new category of ionic conductors, COFs exhibit unparalleled application potential in solid-state electrolytes. Here, we provide a comprehensive summary of recent applications and research progress for COFs in solid-state electrolytes of lithium metal batteries and discuss the possible development directions in the future. This review is expected to provide theoretical guidance for the design of high-performance solid-state electrolytes. Full article

(This article belongs to the Special Issue Electrochemistry of Organic Compounds and Their Applications)

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20 pages, 918 KiB

Open AccessReview

Electrochemically Produced Copolymers of Pyrrole and Its Derivatives: A Plentitude of Material Properties Using “Simple” Heterocyclic Co-Monomers

by Tomasz Jarosz and Przemyslaw Ledwon

Materials 2021, 14(2), 281; https://doi.org/10.3390/ma14020281 - 7 Jan 2021

Cited by 14 | Viewed by 3061

Abstract

Polypyrrole is a classical, well-known conjugated polymer that is produced from a simple heterocyclic system. Numerous pyrrole derivatives exhibit biological activity, and the repeat unit is a common building block present in the chemical structure of many polymeric materials, finding wide application, primarily in optoelectronics and sensing. In this work, we focus on the variety of copolymers and their material properties that can be produced electrochemically, even though all these systems are obtained from mixtures of the “simple” pyrrole monomer and its derivatives with different conjugated and non-conjugated species. Full article

(This article belongs to the Special Issue Electrochemistry of Organic Compounds and Their Applications)

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