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Membranes
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Electrochemical Membranes for Energy Storages and Fuel Cells
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Electrochemical Membranes for Energy Storages and Fuel Cells

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

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 5368

Special Issue Editors

Dr. Seong Ku Kim

E-Mail Website
Guest Editor
Department of Chemical Engineering, Hannam University, Daedok-gu, Korea
Interests: electrochemistry; environmentally friendly materials; solid electrolytes; energy storages and conversion
Dr. Insung Bae

E-Mail Website
Guest Editor
Department of Materials Science and Engineering, Hannam University, Daejeon, Korea
Interests: polymer electrolytes for fuel cell; nanomaterials for energy and electronics

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit a paper to Membranes for a Special Issue on “Electrochemical Membranes for Energy Storages and Fuel Cells”. Both research articles and reviews are welcome for possible publication in this issue.

For decades, the importance of the development of next-generation energy systems has been emphasized. Electrochemical energy storages (e.g., secondary batteries and supercapacitors) and conversion devices (e.g., fuel cells) are also expected to play key roles in new energy systems. To develop high-performance electrochemical energy devices, high-performance ion-conducting electrolyte membranes and functional separator membranes are required. For this reason, we would like to put together a collection of your contributions on the research and development of electrochemical membranes in this Special Issue. The topics of interest for this issue include (but are not limited to) the following:

  • Synthesis and application of high-performance/high-stability gel electrolytes for energy storages;
  • Synthesis and application of high-performance polymer electrolytes for energy storages and fuel cells;
  • Composite electrolyte membranes for energy storages;
  • Mechanism of ion conduction through electrolyte membranes;
  • Functional separator membranes for batteries and supercapacitors;
  • Computational approaches to high-performance membranes development;
  • Synthesis of environmentally friendly membranes for energy storages and conversion;
  • Investigation of electrode–solid (polymer) electrolyte interfaces. 

We look forward to receiving your contributions. 

Dr. Seong Ku Kim
Dr. Insung Bae
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 2700 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

  • polymer electrolytes
  • all-solid-state energy storages
  • supercapacitors
  • polymer electrolyte batteries
  • proton-conducting electrolytes
  • anion-conducting electrolytes
  • fuel cells

Published Papers (2 papers)

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Research

18 pages, 33218 KiB  
Article
Construct α-FeOOH-Reduced Graphene Oxide Aerogel as a Carrier for Glucose Oxidase Electrode
by Yue Yao, Changyu Hou and Xin Zhang
Membranes 2022, 12(5), 447; https://doi.org/10.3390/membranes12050447 - 21 Apr 2022
Cited by 1 | Viewed by 1791
Abstract
A promising α-FeOOH-reduced graphene oxide aerogel (FeOOH-GA) has been prepared for the assembly of an enzyme electrode. The α-FeOOH-reduced graphene oxide aerogel was characterized by X-ray powder diffraction, field emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman, energy-dispersive X-ray [...] Read more.
A promising α-FeOOH-reduced graphene oxide aerogel (FeOOH-GA) has been prepared for the assembly of an enzyme electrode. The α-FeOOH-reduced graphene oxide aerogel was characterized by X-ray powder diffraction, field emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The results reveal that graphene oxide is reduced by Fe2+ ion and α-FeOOH nanorods anchored on the reduced graphene oxide sheet through the Fe-O-C bond. Analyses using scanning electron microscopy and the Brunauer–Emmett–Teller method show that FeOOH-GA displays a various and interconnected pore structure. The FeOOH-GA was used as a support material on the glass carbon electrode (GCE) for glucose oxidase (GOD). Electrochemistry properties and bioelectrocatalytic activities of Nafion/GOD/FeOOH-GA/GCE were achieved from cyclic voltammetry and electrochemical impedance spectroscopy. The results show that Nafion/GOD/FeOOH-GA/GCE maintains outstanding catalytic activity and electrochemical properties. The FeOOH-GA could immobilize GOD through the hydrophobicity of the reduced graphene oxide and hydroxide radical of α-FeOOH. Appropriate α-FeOOH and diversified pore structure are beneficial for electron transfer, enzyme electrode storage, and interfacial electron transfer rate. All results indicated that the α-FeOOH-reduced graphene oxide aerogel as a carrier could effectively immobilize the tested enzyme. Full article
(This article belongs to the Special Issue Electrochemical Membranes for Energy Storages and Fuel Cells)
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10 pages, 2935 KiB  
Communication
Designing a Functional CNT+PB@MXene-Coated Separator for High-Capacity and Long-Life Lithium–Sulfur Batteries
by Guiling Wang, Jiaojiao Li, Zhiling Du, Zhipeng Ma and Guangjie Shao
Membranes 2022, 12(2), 134; https://doi.org/10.3390/membranes12020134 - 23 Jan 2022
Cited by 10 | Viewed by 2940
Abstract
Separators, as indispensable parts of LSBs (lithium–sulfur batteries), play a cucial role in inhibiting dendrite growth and suppressing the shuttle of lithium polysulfide (LiPSs). Herein, we prepared a functional carbon nanotube (CNT) and Fe-based Prussian blue (PB)@MXene/polypropylene (PP) composite separator using a facile [...] Read more.
Separators, as indispensable parts of LSBs (lithium–sulfur batteries), play a cucial role in inhibiting dendrite growth and suppressing the shuttle of lithium polysulfide (LiPSs). Herein, we prepared a functional carbon nanotube (CNT) and Fe-based Prussian blue (PB)@MXene/polypropylene (PP) composite separator using a facile vacuum filtration approach. The CNTs and MXene nanosheets are excellent electronic conductors that can enhance the composite separator electrical conductivity, while Fe-based Prussian blue with a rich pore structure can effectively suppress the migration by providing physical space to anchor soluble LiPSs and retain it as cathode active material. Additionally, MXene nanosheets can be well attached to Fe-based Prussian blue by an electrostatic interaction and contribute to the physical barriers that inhibit the shuttle of long-chain soluble Li2Sn (4 ≤ n ≤ 8). When used as a lithium–sulfur (Li–S) cell membrane with a functional coating layer of CNT+PB@MXene facing the cathode side, the batteries reveal a high initial discharge capacity (1042.6 mAh g−1 at 0.2 C), outstanding rate capability (90% retention of capacity at 1.0 C) and high reversible capacity (674.1 mAh g−1 after 200 cycles at 1.0 V). Of note, separator modification is a feasible method to improve the electrochemical performance of LSBs. Full article
(This article belongs to the Special Issue Electrochemical Membranes for Energy Storages and Fuel Cells)
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