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Inventions
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Innovative Approaches for Fabricating Membrane Electrode Assemblies for Fuel Cells...
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Innovative Approaches for Fabricating Membrane Electrode Assemblies for Fuel Cells and Water Electrolysis Applicaions

A special issue of Inventions (ISSN 2411-5134). This special issue belongs to the section "Inventions and Innovation in Energy and Thermal/Fluidic Science".

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 3297

Special Issue Editor

Dr. Shaik Gouse Peera

E-Mail Website
Guest Editor
Department of Environmental Science and Engineering, Keimyung University, 1095, Dalgubeol-daero, Dalseo-gu, Daegu 42601, Republic of Korea
Interests: fuel cells; electrochemistry; oxygen reduction reaction; oxygen evolution reaction; water electrolysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fuel cells and water electrolysis are both important technologies that have the potential to significantly impact the energy sector and help address environmental challenges. Fuel cells are devices that convert chemical energy into electrical energy through the electrochemical reaction process. They have several advantages over traditional energy sources, including high efficiency, low emissions, and quiet operation. Fuel cells can use a variety of fuels, including hydrogen, natural gas, and methanol, and can be used in a wide range of applications, from powering cars and buses to providing electricity to buildings. On the other hand, “water electrolysis” is a process that splits water molecules into hydrogen and oxygen gases using electricity. The hydrogen produced through electrolysis can be used as a fuel for fuel cells, or it can be stored and transported for use in other applications. Water electrolysis is a promising technology for producing hydrogen, as it can be powered by renewable energy sources such as solar and wind power, which can make the hydrogen production process more sustainable and reduce carbon emissions.

Membrane electrode assemblies (MEAs) play a crucial role in both proton exchange membrane (PEM) fuel cells and water electrolysis cells as they serve as the heart of these devices. The performance and durability of PEM fuel cells and water electrolysis cells depend largely on the quality and performance of the MEA. The catalyst-coated electrodes must be carefully engineered to optimize performance, and the proton exchange membrane must be durable and able to withstand harsh operating conditions.

This Special Issue invites research articles and review papers that deal with: innovative strategies to engineer catalyst layers and gas distribution layers; catalyst ink formulation; and novel strategies to enhance MEA performance in PEM and AEM fuel cells and electrolyser cells.

Dr. Shaik Gouse Peera
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. Inventions 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 1800 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

  • PEM fuel cells
  • AEM fuel cells
  • PEM water electrolysis cell
  • membrane electrode assembly (MEAs)
  • ionomer distribution and optimization
  • gas diffusion layer
  • catalyst ink optimization
  • catalyst directly coated membrane
  • modelling of GDL
  • mass transport improvements
  • catalyst layer thickness reduction
  • MEA degradation studies
  • membranes for PEM and AEM
  • electrocatalyst
  • oxygen reduction reaction, Oxygen evolution reaction
  • unitized regenerative fuel cells
  • effect of solvent
  • hot press

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Published Papers (2 papers)

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Research

15 pages, 2896 KB  
Article
Platinum Atom-Functionalized Carbon Nanotubes as Efficient Sensors for CO and CO2: A Theoretical Investigation
by Natalia P. Boroznina, Sergey V. Boroznin, Irina V. Zaporotskova, Pavel A. Zaporotskov, Dmitry F. Sergeev, Govindhasamy Murugadoss, Nachimuthu Venkatesh and Shaik Gouse Peera
Inventions 2025, 10(5), 86; https://doi.org/10.3390/inventions10050086 - 26 Sep 2025
Abstract
This study presents a theoretical investigation of platinum-modified single-wall carbon nanotubes (SWCNTs) of types (6.0) and (6.6) for their potential application as gas sensor materials. Quantum chemical calculations using density functional theory (DFT) were performed to evaluate the interaction mechanisms with carbon monoxide [...] Read more.
This study presents a theoretical investigation of platinum-modified single-wall carbon nanotubes (SWCNTs) of types (6.0) and (6.6) for their potential application as gas sensor materials. Quantum chemical calculations using density functional theory (DFT) were performed to evaluate the interaction mechanisms with carbon monoxide (CO) and carbon dioxide (CO2) molecules. The results revealed that pristine SWCNTs exhibit weak and unstable interactions with CO and CO2, indicating limited sensing capabilities. However, the modification with platinum atoms significantly enhanced their adsorption properties. The most energetically favorable configuration was found when the platinum atom was located at the center of a C–C bond on the SWCNT surface, ensuring the stability of the metal-functionalized system. The Pt-modified SWCNTs exhibited stable sorption interactions with CO and CO2, characterized by weak van der Waals forces, enabling the reusability of the sensor without contamination. Additionally, the adsorption of these gas molecules induced changes in the band gap of the nanocomposite system, indicating a variation in conductivity upon gas exposure. The distinct band gap changes for the CO and CO2 adsorption suggest the selectivity of the sensor towards each gas. Overall, the results demonstrate that platinum modification effectively enhances the sensing performance of SWCNTs, paving the way for the development of highly sensitive and selective nanosensors for CO and CO2 detection based on changes in electronic properties upon gas adsorption. Full article
(This article belongs to the Special Issue Innovative Approaches for Fabricating Membrane Electrode Assemblies for Fuel Cells and Water Electrolysis Applicaions)
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16 pages, 6073 KB  
Article
Development of Membrane Electrode Assembly with Double-Catalytic Layer for Micro Direct Methanol Fuel Cell
by Shubin Zhang and Yanfeng Jiang
Inventions 2024, 9(1), 19; https://doi.org/10.3390/inventions9010019 - 1 Feb 2024
Viewed by 2394
Abstract
This paper presents a membrane electrode assembly (MEA) with a double-catalytic layered structure to improve the performance of the micro direct methanol fuel cell. The inner and outer parts of the double-catalytic layer comprise an unsupported and carbon-supported catalyst, respectively. A two-dimensional two-phase [...] Read more.
This paper presents a membrane electrode assembly (MEA) with a double-catalytic layered structure to improve the performance of the micro direct methanol fuel cell. The inner and outer parts of the double-catalytic layer comprise an unsupported and carbon-supported catalyst, respectively. A two-dimensional two-phase model of mass transport and electrochemical reaction is established and simulated to analyze the superiority of the double-catalytic layered structure. Simulation results show that this structure has a more uniform current density distribution and less over-potential across the catalyst layer. Methanol crossover is also reduced. Experimental results confirm that the MEA with the double-catalytic layered structure exhibits better performance than the traditional MEA. The adoption of a gas diffusion electrode as the outer catalytic layer and a catalyst-coated membrane as the inner layer of the double-catalytic layered structure can further improve the performance of the MEA. Both simulation and experimental results show the existence of an optimum number of metal loadings of the inner and outer parts of the double-catalytic layer. Full article
(This article belongs to the Special Issue Innovative Approaches for Fabricating Membrane Electrode Assemblies for Fuel Cells and Water Electrolysis Applicaions)
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