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Applied Sciences
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Technology and Application of Electrochemical Impedance Spectroscopy
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Technology and Application of Electrochemical Impedance Spectroscopy

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 5072

Special Issue Editors

Prof. Dr. Pedro Manuel Gens Azevedo de Matos Faia

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Guest Editor
Department of Electrical and Computer Engineering, Coimbra University, Center of Mechanical Engineering Materials and Processes – CEMMPRE, Department of Electrical and Computer Engineering, 3030 Coimbra, Portugal
Interests: solid-state chemical sensors; sensor integration techniques; electrochemical sensor and biosensors; impedance spectroscopy technique and applications; electric and ionic materials characterization; tomographic techniques for multiphase flow visualization: electrical impedance tomography; instrumentation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Helinando Pequeno de Oliveira

E-Mail Website
Guest Editor
Institute of Materials Science (IPCM), Universidade Federal do Vale do São Francisco, Juazeiro 56326-100, Brazil
Interests: supercapacitors; conducting polymers; triboelectric nanogenerators
Special Issues, Collections and Topics in MDPI journals
Dr. Olga Yu Kurapova

E-Mail Website
Guest Editor
Department of Physical Chemistry, Institute of Chemisctry, Saint Petersburg University, 199034 Saint Petersburg, Russia
Interests: solid electrolytes; ion-conductive ceramics; ceramic–graphene composites; gas sensors; protonic conductors; fuel cells

Special Issue Information

Dear Colleagues,

Electrical impedance spectroscopy (EIS) is a powerful electrical characterization tool that has been progressively applied over the last few decades in many domains of physics, chemistry, and biotechnology, as well as materials science, electrochemistry, and device characterization. Additionally, EIS is considered an important tool to be applied in the optimization of performance of components and the investigation of materials and interfaces. It has also served as the foundation for the development of imaging techniques such as capacitive tomography or electrical impedance tomography.

Thus, this Special Issue is devoted to the application of the electrical impedance spectroscopy technique for the characterization of a wide range of materials, including electronic and ion-conductive oxides, polymers, ceramics, composites (including graphene doped materials), and magnetic materials. The characterization of such electrochemical devices as well as high and intermediate temperature gas sensors, biosensors, fuel cells, resistive, capacitive, and impedance sensors via impedance spectroscopy opens a bright prospective to significantly increase their performance.

The basic experimental setup for EIS is composed of an external alternate electrical signal (a current, i, or a voltage, v), typically with a sinusoidal shape, which is applied to the under-study device. Through EIS, it is experimentally possible to determine the mechanisms that control the kinetics of the prevailing processes in the material bulk or over the interfaces. For that, EIS data are collected through a potentiostat/galvanostat apparatus in the form of Nyquist or Bode plots. The collected data in the frequency domain are fitted by a mathematical model (that corresponds to a chosen equivalent electrical circuit, EEC) for its interpretation and analysis, fundamentally seeking a meaningful physical interpretation.

The authors are encouraged to submit their original research results on the following topics:

  • Current advances and challenges in electrochemical device development and characterization by EIS;
  • Properties tailoring and characterization of magnetic materials and of advanced materials for gas sensors, biosensors, resistive, capacitive, and impedance sensors/devices;
  • Determination of mechanisms that control the kinetics of prevailing processes in oxide, non-oxide, polymeric, and composite materials bulk or over the interfaces;
  • Investigation of corrosion processes and wearable devices by EIS;
  • Electrical spectroscopy apparatus development.

Prof. Dr. Pedro Faia
Prof. Dr. Helinando Pequeno de Oliveira
Dr. Olga Yu Kurapova
Guest Editors

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. Applied Sciences 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 2400 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

  • electric materials characterization
  • magnetic materials characterization
  • corrosion
  • electrochemical device characterization
  • resistive, capacitive, and impedance sensor/device characterization
  • biosensor characterization
  • wearable device characterization
  • interface characterization
  • equivalent electrical circuit modeling
  • energy conversion and storage
  • composites materials characterization
  • polymeric materials characterization
  • high-temperature ceramics materials characterization
  • graphene-doped materials characterization
  • ion conductors
  • mixed electronic and ionic conductivity

Published Papers (2 papers)

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Research

16 pages, 6029 KiB  
Article
Phase Formation and the Electrical Properties of YSZ/rGO Composite Ceramics Sintered Using Silicon Carbide Powder Bed
by Artem Glukharev, Oleg Glumov, Ivan Smirnov, Evgeniy Boltynjuk, Olga Kurapova and Vladimir Konakov
Appl. Sci. 2022, 12(1), 190; https://doi.org/10.3390/app12010190 - 24 Dec 2021
Cited by 3 | Viewed by 2452
Abstract
Fully stabilized zirconia/graphene composites are very promising advanced structural materials having mixed ion–electron conductivity for energy storage and energy conversion applications. The existing methods of the composite manufacturing have a number of disadvantages that limit their practical use. Thus, the search for new [...] Read more.
Fully stabilized zirconia/graphene composites are very promising advanced structural materials having mixed ion–electron conductivity for energy storage and energy conversion applications. The existing methods of the composite manufacturing have a number of disadvantages that limit their practical use. Thus, the search for new sintering methods is an actively developing area. In this work, we report for the first time the application of the SiC powder bed sintering technique for fully stabilized zirconia (YSZ) composite fabrication. The reduced graphene oxide (rGO) was used as a graphene derivative. As a result, well-formed ceramics with high density and crystallinity, the maximal microhardness of 13 GPa and the values of the ionic conductivity up to 10−2 S/cm at 650 °C was obtained. The effects of the sintering conditions and rGO concentration on the microstructure and conductivities of ceramics are discussed in detail. The suggested powder bed sintering technique in a layered graphite/SiC/graphite powder bed allowed well-formed dense YSZ/rGO ceramics fabrication and can become a suitable alternative to existing methods for various oxide ceramic matrix composite fabrication: both conventional sintering and non-equilibrium (SPS, flash sintering) approaches. Full article
(This article belongs to the Special Issue Technology and Application of Electrochemical Impedance Spectroscopy)
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20 pages, 6374 KiB  
Article
Electrochemical Characterization of Novel Polyantimonic-Acid-Based Proton Conductors for Low- and Intermediate-Temperature Fuel Cells
by Olga Yu. Kurapova, Pedro M. Faia, Artem A. Zaripov, Vasily V. Pazheltsev, Artem A. Glukharev and Vladimir G. Konakov
Appl. Sci. 2021, 11(24), 11877; https://doi.org/10.3390/app112411877 - 14 Dec 2021
Cited by 4 | Viewed by 1925
Abstract
The development of novel proton-conducting membrane materials for electrochemical power units, i.e., low temperature fuel cells (FCs), efficiently working up to 300 °C, is a critical problem related to the rapid shift to hydrogen energy. Polyantimonic acid (PAA) is characterized by high conductivity, [...] Read more.
The development of novel proton-conducting membrane materials for electrochemical power units, i.e., low temperature fuel cells (FCs), efficiently working up to 300 °C, is a critical problem related to the rapid shift to hydrogen energy. Polyantimonic acid (PAA) is characterized by high conductivity, sufficient thermal stability and can be regarded as a prospective proton-conducting material. However, the fabrication of bulk PAA-based membranes with high proton conductivity remains a challenging task. In the present work, for the first time, the authors report the investigation on proton conductivity of bulk PAA-based membranes in the temperature range 25–250 °C, both in dry air and in moisturized air. Using PAA powder and fluoroplastic as a binder, fully dense cylindrical membranes were formed by cold uniaxial pressing. The structures of the PAA-based membranes were investigated by SEM, EDX, XRD and Raman techniques. STA coupled with in situ thermo-XRD analysis revealed that the obtained membranes corresponded with Sb2O5·3H2O with pyrochlore structure, and that no phase transitions took place up to 330 °C. PAA-based membranes possess a high-grain component of conductivity, 5 × 10−2 S/cm. Grain boundary conductivities of 90PAA and 80PAA membranes increase with relative humidity content and their values change non-linearly in the range 25–250 °C. Full article
(This article belongs to the Special Issue Technology and Application of Electrochemical Impedance Spectroscopy)
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