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Membranes
Special Issues
Sustainable Mixed Ionic-Electronic Conducting Membranes for Environmental and Energy Applications
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Sustainable Mixed Ionic-Electronic Conducting Membranes for Environmental and Energy Applications

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 6899

Special Issue Editors

Dr. Guoxing Chen

E-Mail Website
Guest Editor
Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, 63755 Alzenau, Germany
Interests: CO2 conversion; plasma catalysis; gas separation; perovskites; H2 production; oxygen transporting membranes; waste materials recycling
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Anke Weidenkaff

E-Mail Website
Guest Editor
1. Fraunhofer Research Institution for Materials Recycling and Resource Strategies IWKS, Alzenau, Germany
2. Institute of Materials and Earth Sciences, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt, Germany
Interests: recycling; energy materials; resource efficiency; perovskites; thermoelectrics; gas separation; oxygen transport membrane; catalysis
Special Issues, Collections and Topics in MDPI journals
Dr. Marc Widenmeyer

E-Mail Website
Guest Editor
Institute of Materials and Earth Sciences, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt, Germany
Interests: sustainable material synthesis; thermal analysis; diffraction techniques; energy materials; perovskites; solar water splitting; oxygen transport membranes; green hydrogen; ceramic membrane recycling
Prof. Dr. Armin Feldhoff

E-Mail Website
Guest Editor
Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstr. 3A, 30167 Hannover, Germany
Interests: thermo-iono-electronic materials; oxygen transport membranes; hydrogen transport membranes; triple conductors; nature of entropy; metrology of entropy; nonequilibrium thermodynamics; thermodynamics of small systems; thermoelectricity; thermocells; thermodiffusion; energy harvesting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Mixed ionic–electronic conducting (MIEC) membranes have attracted considerable attention from both academia and industry due to their broad range of potential for energy- and environmental-related applications. MIEC membranes have been considered as a prominent next-generation technology for energy conversion and storage and demonstrate an important role in the ongoing energy transition. There is no doubt that MIEC membranes will play a vital role in various energy conversion and storage applications.

This Special Issue of the journal Membranes titled “Sustainable Mixed Ionic–Electronic Conducting Membranes for Environmental and Energy Applications” seeks contributions to assess state-of-the-art technologies, the latest developments and future challenges and opportunities of MIEC membranes. Topics include, but are not limited to, membranes for H2 and O2 production, membranes for CO2 conversion, membranes for CO2 separation, membrane reactors for the production of chemicals, membranes for O2 and H2 separation, cathode development for solid oxide fuel cells, protonic ceramic fuel cells, solar-driven evaporation processes, electrolyzer cells for power-to-X technologies, modeling for oxygen and hydrogen transport, new material development, new fabrication techniques, industrial exploitation and new processes using MIEC membranes. Both original articles, perspectives and reviews are welcome.

We are looking forward to receiving your work for this Special Issue.

Dr. Guoxing Chen
Prof. Dr. Anke Weidenkaff
Dr. Marc Widenmeyer
Prof. Dr. Armin Feldhoff
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. Membranes 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 2200 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

  • MIEC membranes for H2 and O2 production
  • MIEC membranes for CO2 reduction
  • cathode development for solid oxide fuel cells
  • cathode development for protonic ceramic fuel cells
  • fabrication techniques
  • membrane modification
  • electrolyzer cells for power-to-X technologies
  • MIEC for CO2 separation
  • MIEC for H2 separation
  • triple conductors
  • membrane reactors
  • structure–property–performance relationships
  • new membrane materials
  • membrane characterization
  • new processes involing MIEC membranes
  • energy storage and resource recovery applications

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Published Papers (2 papers)

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Research

18 pages, 7519 KiB  
Communication
High-Entropy Perovskites Pr1−xSrx(Cr,Mn,Fe,Co,Ni)O3−δ (x = 0–0.5): Synthesis and Oxygen Permeation Properties
by Zhijun Zhao, Lena Rehder, Frank Steinbach and Armin Feldhoff
Membranes 2022, 12(11), 1123; https://doi.org/10.3390/membranes12111123 - 9 Nov 2022
Cited by 9 | Viewed by 2562
Abstract
High-entropy perovskite oxides have already been studied in various fields owing to their high-entropy-induced properties. Partial substitution of an element by a lower valence element usually improves the oxygen permeability of perovskite oxides, but high substitution amounts may lead to structural instability. In [...] Read more.
High-entropy perovskite oxides have already been studied in various fields owing to their high-entropy-induced properties. Partial substitution of an element by a lower valence element usually improves the oxygen permeability of perovskite oxides, but high substitution amounts may lead to structural instability. In this work, pure high-entropy perovskites Pr1−xSrx(Cr,Mn,Fe,Co,Ni)O3−δ with high amounts Sr up to x=0.5 were synthesized via a sol–gel method. Several characterization methods prove that the solubility of Sr increases with higher temperatures of the heating treatment. The ceramic with x=0.5 shows a transition from semi-conductive to metallic behavior when the temperature reaches 873 K. Its oxygen flux is comparable to the low-entropy counterpart La0.6Sr0.4Co0.5Fe0.5O3−δ. A stable run of ca. 46.2 h was documented for oxygen permeation under an air/CO2 gradient. Full article
(This article belongs to the Special Issue Sustainable Mixed Ionic-Electronic Conducting Membranes for Environmental and Energy Applications)
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14 pages, 4323 KiB  
Article
Collective Enhancements on Thermal-Electrical and Mechanical Properties of Graphite-Based Composite Bipolar Plates through the Coupled Manipulations of Molding and Impregnation Pressures
by Xueliang Wang, Zhiguo Qu, Haitao Yang, Guobin Zhang, Yichong Zhang and Chaofan Liu
Membranes 2022, 12(2), 222; https://doi.org/10.3390/membranes12020222 - 15 Feb 2022
Cited by 10 | Viewed by 3065
Abstract
The performance and durability of proton exchange fuel cells (PEMFCs) are greatly affected by the bipolar plate (BP). In this paper, the thermal and electrical conductivities and mechanical property of graphite filled with resin composite BPs were collectively enhanced through the effectively coupled [...] Read more.
The performance and durability of proton exchange fuel cells (PEMFCs) are greatly affected by the bipolar plate (BP). In this paper, the thermal and electrical conductivities and mechanical property of graphite filled with resin composite BPs were collectively enhanced through the effectively coupled manipulations of molding pressure and impregnation pressure. The microstructures show that the resin tends to distribute at the top region of the rib under high impregnation pressure. The thermal and electrical conductivities of the pure expanded graphite BP is well reserved in the composite BPs under high molding pressure, which can facilitate the heat transfer and electron conduction in the PEMFCs. The relative density and compressive strength of composite BPs were greatly enhanced by the impregnation of resin compared to the expanded graphite under high molding pressure without the impregnation of resin (HU-BP). The maximum thermal conductivity, compressive strength, and minimum interfacial contact resistance (ICR) are collectively achieved in the HL-BP. The enhanced thermal-electrical and mechanical properties could be mainly attributed to the well-reserved continuous networks of graphite in the composite BPs. The findings in this paper are expected to synergetically improve the thermal, electrical, and mechanical properties of composite BPs through coupled manipulations of the molding and impregnation pressures, which in turn enhances the power density and durability of PEMFCs. Full article
(This article belongs to the Special Issue Sustainable Mixed Ionic-Electronic Conducting Membranes for Environmental and Energy Applications)
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