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Advanced Applications of Electrochemical Materials for Sensors and Catalysts
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Advanced Applications of Electrochemical Materials for Sensors and Catalysts

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

Deadline for manuscript submissions: 20 November 2026 | Viewed by 4107

Special Issue Editors

Dr. Mingzhi Jiao

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Guest Editor
State and Local Joint Engineering Laboratory of Perception Mine, School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: semiconductor sensing chip; MEMS based intelligent gas sensor micro nano manufacturing technology; battery thermal management
Special Issues, Collections and Topics in MDPI journals
Dr. Jianxin Yi

E-Mail Website
Guest Editor
Department of Safety Science and Engineering, University of Science and Technology of China, Hefei, China
Interests: gas sensors; fire detection
Special Issues, Collections and Topics in MDPI journals
Dr. Tao Wang

E-Mail Website
Guest Editor
Shanghai Key Laboratory of Intelligent Sensing and Detection Technology, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
Interests: MEMS sensors; gas sensors; pattern recognition; machine learning; IoT
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, sensors are applied everywhere in society, from industry process control to environmental monitoring to smart home infrastructure. Catalysts are also hot topics. They are found in the petroleum industry, waste deep treatment facilities, and car exhaust treatment devices. Electrochemical materials such as TiO2, ZnO, and 2D materials can be employed in both areas. For example, TiO2 has excellent photoelectrochemical properties, which provide it with superior performance in photocatalysts and toxic gas removal applications. ZnO nanowires can be employed as sensing materials for room-temperature NO2 gas sensors. Graphene or MoS2 composites have been reported to be excellent room-temperature gas sensors or electrochemical catalysts. Many interesting and significant results are emerging in applications of electrochemical materials for sensors and catalysts. This Special Issue aims to report on some exciting work being conducted in this field. Topics of interest include, but are not limited to, the following:

  1. Metal oxides or 2D materials for gas sensors;
  2. Various electrochemical materials for photocatalysts or electrocatalysts;
  3. Application research based on electrochemical material-based gas sensor device or catalyst.

We look forward to receiving your contributions.

Dr. Mingzhi Jiao
Dr. Jianxin Yi
Dr. Tao Wang
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 250 words) can be sent to the Editorial Office for assessment.

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

  • gas sensors
  • photocatalysis
  • electrocatalysis
  • semiconductor
  • 2D materials

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Published Papers (2 papers)

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Research

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15 pages, 6574 KB  
Article
Structural Engineering of Bimetallic CoCe-ZIF Derives Catalysts with Optimized Electronic Structure for Enhanced Oxygen Electrocatalysis
by Linxiang Zhou, Chaoyang Shi, Huaqi Wang, Danyang Wei, Haodong Jin, Haoqi Li, Zhiwei Meng and Mingli Xu
Materials 2025, 18(10), 2251; https://doi.org/10.3390/ma18102251 - 13 May 2025
Viewed by 908
Abstract
Developing efficient and durable non-precious metal catalysts for oxygen electrocatalysis in fuel cells and zinc–air batteries remains an urgent issue to be addressed. Herein, a bimetallic CoCe-NC catalyst is synthesized through pyrolysis of Co/Ce co-doped metal–organic frameworks (MOFs), retaining the inherently high surface [...] Read more.
Developing efficient and durable non-precious metal catalysts for oxygen electrocatalysis in fuel cells and zinc–air batteries remains an urgent issue to be addressed. Herein, a bimetallic CoCe-NC catalyst is synthesized through pyrolysis of Co/Ce co-doped metal–organic frameworks (MOFs), retaining the inherently high surface area of MOFs to maximize the exposure of Co-N and Ce-N active sites. The electronic interaction between Co and Ce atoms effectively modulates the adsorption/desorption behavior of oxygen-containing intermediates, thereby enhancing intrinsic catalytic activity. In alkaline media, the CoCe-NC catalyst exhibits E1/2 = 0.854 V electrocatalytic capability comparable to commercial Pt/C, along with superior methanol resistance and durability. Notably, CoCe-NC demonstrates an overpotential 84 mV lower than Pt/C at 300 mA cm−2 in a GDE half-cell. When the catalyst is employed as a cathode in zinc–air batteries, it demonstrates an open-circuit voltage of 1.47 V, a peak power density of 202 mW cm−2, and exceptional cycling durability. Full article
(This article belongs to the Special Issue Advanced Applications of Electrochemical Materials for Sensors and Catalysts)
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Review

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25 pages, 4924 KB  
Review
Recent Progress in Low-Power-Consumption Metal Oxide Semiconductor Gas Sensors
by Yu Zhang, Renbo Li, Ruqi Guo, Mingzhi Jiao, Gang Wang and Zhikai Zhao
Materials 2025, 18(21), 4864; https://doi.org/10.3390/ma18214864 - 24 Oct 2025
Viewed by 2933
Abstract
Metal oxide semiconductor (MOS) gas sensors offer several advantages, including low cost, high accuracy, and ease of miniaturization. Thus, they are excellent candidates for environmental monitoring and food spoilage detection applications, particularly in the safe Internet of Things field or for portable instruments. [...] Read more.
Metal oxide semiconductor (MOS) gas sensors offer several advantages, including low cost, high accuracy, and ease of miniaturization. Thus, they are excellent candidates for environmental monitoring and food spoilage detection applications, particularly in the safe Internet of Things field or for portable instruments. Typically, there are two general routes for realizing low-power-consumption MOS gas sensors: room-temperature MOS gas sensors or MEMS MOS gas sensors. The review focuses on the detection of four typical gases, namely methane, hydrogen, carbon monoxide, and nitrogen dioxide, systematically summarizing and analyzing the most recent results of low-power-consumption MOS gas sensors. The 2D materials, MOS composites, and 3D structured composites exhibit excellent room-temperature gas detection capabilities. The mechanism of the room-temperature gas sensors is also discussed in detail. Another route is MEMS MOS gas sensors. First, the progress of the micro-hotplate research is introduced. Then, several of the latest reported MEMS MOS gas sensors are shown and compared. The gas sensing mechanism of these MEMS MOS gas sensors is also given. The paper will provide a valuable guide for researchers in the MOS gas sensor field, particularly for those working towards low-power-consumption MOS gas sensors. Full article
(This article belongs to the Special Issue Advanced Applications of Electrochemical Materials for Sensors and Catalysts)
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