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Application and Development of Polymeric Materials in Electrochemistry

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Chemistry".

Deadline for manuscript submissions: 30 April 2026 | Viewed by 626

Special Issue Editor


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Guest Editor
Department of Textile System Engineering, Kyungpook National University, Daegu, Reoublic of Korea
Interests: composite; electrochemistry; conductive polymers; conjugated polymers

Special Issue Information

Dear Colleagues,

Polymer materials, with their advantages of structural designability, chemical stability, and functional tunability, have become a key support material for the development of electrochemistry. Their applications span core devices, including batteries, supercapacitors, electrochemical sensors, and fuel cells. They can serve as electrode binders to ensure structural integrity and separators to enable selective ion transport. They can also directly participate in electrochemical processes in the form of conductive polymers and polymer-based electrolytes, significantly improving device performance, safety, and flexibility. Currently, the modification (e.g., nanocomposites and copolymers) and functional design of polymer materials are becoming important approaches to overcome bottlenecks in the energy density, cycle life, and cost of electrochemical devices, driving innovative developments in electrochemical technology in areas such as energy storage, intelligent sensing, and clean energy conversion. This Special Issue seeks to collect research related to polymer materials for electrochemical applications. Submissions are welcome.

Prof. Dr. Jongho Kim
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 250 words) can be sent to the Editorial Office for assessment.

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Keywords

  • polymeric materials
  • electrochemistry
  • electrolytes
  • conductive polymers
  • energy storage

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Published Papers (1 paper)

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Research

17 pages, 2687 KB  
Article
Electrochemical Sensing of Lead Ions Using Ionophore-Modified Raspberry-like Fe3O4–Au Nanostructures via Differential Pulse Voltammetry
by Giang Huong Dau, Tin Phan Nguy, Tram Thi Ngoc Do, Thanh Van Pham and Lien Thi Ngoc Truong
Polymers 2025, 17(22), 3015; https://doi.org/10.3390/polym17223015 - 13 Nov 2025
Viewed by 515
Abstract
This study presents the design and application of an electrochemical sensor for selective detection of lead ions (Pb2+) based on ionophore-modified raspberry-like Fe3O4–Au nanostructures. The material was engineered with a magnetic Fe3O4 core, coated [...] Read more.
This study presents the design and application of an electrochemical sensor for selective detection of lead ions (Pb2+) based on ionophore-modified raspberry-like Fe3O4–Au nanostructures. The material was engineered with a magnetic Fe3O4 core, coated with polyethyleneimine (PEI) to facilitate nucleation, and subsequently decorated with Au nanoparticles, providing a raspberry-like (Fe3O4@PEI@AuNPs) nanostructure with high surface area and excellent electrochemical conductivity. Surface functionalization with Lead Ionophore IV (ionophore thiol) introduced Pb2+-selective binding sites, whose presence and structural evolution were verified by TEM and Raman spectroscopy. The Fe3O4 core endowed strong magnetic properties, enabling facile manipulation and immobilization onto screen-printed carbon electrodes (SPCEs) via physical adsorption, while the Au nanoparticles enhanced electron transfer, supplied thiol-binding sites for stable ionophore anchoring, and increased the effective electroactive surface area. Operational conditions were systematically optimized, with acetate buffer (HAc/NaAc, pH 5.7) and chronoamperometric preconcentration (CA) at −1.0 V for 175 s identified as optimal for differential pulse voltammetry (DPV) measurements. Under these conditions, the sensor exhibited a linear response toward Pb2+ from 0.025 mM to 2.00 mM with superior sensitivity and reproducibility compared to conventional AuNP-modified SPCEs. Furthermore, the ionophore-modified Fe3O4–Au nanostructure-based sensor demonstrated outstanding selectivity for Pb2+ over competing heavy metal ions (Cd2+, Hg2+, Cr3+), owing to the specific coordination interaction of Lead Ionophore IV with target ions. These findings highlight the potential of raspberry-like Fe3O4@PEI@AuNP nanostructures as a robust and efficient electrochemical platform for the sensitive and selective detection of toxic heavy metal ions. Full article
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