Micro-Scale Devices for Electrochemical Energy Storage and Electroanalytical Sensing

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C:Chemistry".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 2948

Special Issue Editor


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Guest Editor
Department of Electricity and Energy, Akdeniz University, 07070 Antalya, Turkey
Interests: fabrication and characterization multifunctional nanomaterials; electrochemical characterization; electrochemical sensors; biosensors; electrochemical energy storage and conversion systems

Special Issue Information

Dear Colleagues,

Electroanalytical chemistry utilizes microscale investigations since they can be multiplexed and downsized without losing functionality. Electrochemistry also offers a growing trend toward the miniaturization of analytical tools, with superior characteristics, including high sensitivity, portability, cheap, low-energy demand, and excellent compatibility with advanced micromachining and microfabrication approaches. Many requirements for on-site and in situ measurements can be met by electrochemical tools thanks to their portability and low power requirements. We can employ convenient downsized electrochemical devices to replace conventional weighty electrodes and cumbersome cells thanks to modern microfabrication technology. These hand-held, micro-powered, micro-scale electrochemical devices are incredibly powerful for acquiring the needed analytical information in a swifter, more "user-friendly", and more affordable way than typical laboratory-based tools.

Moreover, the development of sustainable self-powered micro-devices has become a new trend in microelectronics, which has raised demand for micropower modules that can be integrated with these systems. The recent technical trend toward portable and small electronic gadgets has resulted in an increase in demand for micropower sources and micro-scale energy storage systems. Nanorobotics, microelectromechanical systems, wearable personal electronics, remote and mobile environmental sensors, and maintenance-free implantable biosensors will all require micro-scale energy storage devices in the future.

This Special Issue aims to bring together contributions that could highlight the potential of micro-scale electrochemical devices to be employed as electrochemical (bio)sensors or electrochemical energy storage systems. I am pleased to invite you to submit your article to the Special Issue of “Micro-Scale Devices for Electrochemical Energy Storage and Electroanalytical Sensing” in Micromachines. The aim is to have a collection of at least 10 articles, and the Special Issue may be printed in book form if this number is reached. This invitation is extended to contributions in the form of original research articles, review articles, and the case study investigation that combine theoretical research and experimental applications related to the design, modeling, fabrication, calibration, characterization, and use of micro-scale electrochemical devices. Moreover, submissions on real applications and simulations of micro-scale electrochemical devices in different application areas are also invited to this Special Issue. The research/application areas may include (but are not limited to) the following:

  • Environmental monitoring;
  • Food analysis;
  • Micro-scale electrochemical energy storage systems (micro-supercapacitors, micro-scale metal-ion batteries, etc.);
  • Biomedical applications;
  • Clinical diagnostics;
  • Micro-scale electrochemical (bio)sensors.

I look forward to receiving your valuable contributions.

Dr. Ceren Karaman
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. Micromachines is an international peer-reviewed open access monthly 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

  • electrochemistry
  • miniaturization
  • portable systems
  • Lab-on-a-Chip
  • micro-supercapacitors
  • electrochemical sensors
  • microelectronics
  • micropower units
  • microelectromechanical systems
  • microelectrochemical sensors

Published Papers (2 papers)

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Research

11 pages, 5422 KiB  
Article
A Flexible Six-in-One Microsensor Embedded in a Vanadium Redox Flow Battery for Long-Term Monitoring
by Chi-Yuan Lee, Chia-Hung Chen, Yu-Chun Chen and Kai-Siang Fan
Micromachines 2023, 14(5), 1032; https://doi.org/10.3390/mi14051032 - 11 May 2023
Viewed by 1256
Abstract
The vanadium redox flow battery (VRFB) can be used as a supporting technology for energy storage corresponding to wind and solar power generation. An aqueous vanadium compound solution can be used repeatedly. As the monomer is large, the flow uniformity of electrolytes in [...] Read more.
The vanadium redox flow battery (VRFB) can be used as a supporting technology for energy storage corresponding to wind and solar power generation. An aqueous vanadium compound solution can be used repeatedly. As the monomer is large, the flow uniformity of electrolytes in the battery is better, the service life is long, and the safety is better. Hence, large-scale electrical energy storage can be achieved. The instability and discontinuity of renewable energy can then be solved. If the VRFB precipitates in the channel, there will be a strong impact on the flow of vanadium electrolyte, and the channel could even be blocked as a result. The factors which influence its performance and life include electrical conductivity, voltage, current, temperature, electrolyte flow, and channel pressure. This study used micro-electro-mechanical systems (MEMS) technology to develop a flexible six-in-one microsensor which can be embedded in the VRFB for microscopic monitoring. The microsensor can perform real-time and simultaneous long-term monitoring of the physical parameters of VRFB, such as electrical conductivity, temperature, voltage, current, flow, and pressure to keep the VRFB system in the best operating condition. Full article
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11 pages, 3036 KiB  
Article
Analysis of Electrochemically Active Substances in Malvaceae Leaves via Electroanalytical Sensing Technology for Species Identification
by Qiong Wang, Weiting Ye, Dongling Li, Jiangwei Zhu, Chenghang Liu, Chengte Lin, Li Fu and Zenglai Xu
Micromachines 2023, 14(2), 248; https://doi.org/10.3390/mi14020248 - 18 Jan 2023
Viewed by 1195
Abstract
Electrochemical analysis has become a new method for plant analysis in recent years. It can not only collect signals of electrochemically active substances in plant tissues, but can also be used to identify plant species. At the same time, the signals of electrochemically [...] Read more.
Electrochemical analysis has become a new method for plant analysis in recent years. It can not only collect signals of electrochemically active substances in plant tissues, but can also be used to identify plant species. At the same time, the signals of electrochemically active substances in plant tissues can also be used to investigate plant phylogeny. In this work, we collected electrochemical finger patterns in Malvaceae leaves based on the established methodological strategy. After the second derivative treatment, the collected electrochemical fingerprints can show more obvious differences. Three different recognition models were used to attempt electrochemical fingerprinting. The results show that linear support vector classification can be used to identify species with high accuracy by combining the electrochemical fingerprint signals collected in the phosphoric acid buffer solution and acetic acid buffer solution. In addition, the fingerprint information collected by the electrochemical sensor is further used for phylogenetic investigation. The 18 species were divided into three clusters. Species of the same genus have been clustered together. Dendrogram obtained by electrochemical fingerprinting was used to compare previously reported results deduced from morphological and complete chloroplast genomes. Full article
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