Review
Chemistry, Physical
Sadhasivam Thangarasu, Tae Hwan Oh
Summary: This paper summarizes the development and optimization of PPO-based cation exchange membranes in different types of fuel cell systems, focusing on the physicochemical properties of membrane materials and fuel cell performance. Additionally, the application of PPO-based membranes in redox flow battery systems is also outlined.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Polymer Science
Roberto Teruel-Juanes, Carmen del Rio, Oscar Gil-Castell, Carmem Primaz, Amparo Ribes-Greus
Summary: SEBS membranes with DVB as a crosslinking agent and post-sulfonation were evaluated for fuel cell applications. The study showed that membranes with mild post-sulfonation exhibited higher proton conductivity compared to those with excessive sulfonation, leading to promising power density in fuel cell performance. Despite challenges in charge transport, the membranes showed potential for use as cost-effective polyelectrolytes in fuel cells.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Yoshihiro Ozawa, Yuto Shirase, Kanji Otsuji, Kenji Miyatake
Summary: In this study, novel terpolymer-based anion conductive polymers were designed and synthesized, and the effect of hydrophobic composition on membrane properties was investigated. The results showed that QBPA-1 and QBPA-5 membranes exhibited the best-balanced properties.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Liang Zhai, Shengchao Chai, Tingting Li, Haibin Li, Siqi He, Haibo He, Xiang Li, Lixin Wu, Fengjing Jiang, Haolong Li
Summary: Ion-conducting membranes are crucial in redox flow batteries, but achieving a balance between ion conductivity and selectivity is challenging. This study introduces polyoxometalate-hybridized block copolymers as self-assembled additives to create proton-selective nanobarriers in the membrane matrix, resulting in improved structural and performance properties.
Article
Chemistry, Multidisciplinary
Zhifei Yan, Ryszard J. Wycisk, Amy S. Metlay, Langqiu Xiao, Yein Yoon, Peter N. Pintauro, Thomas E. Mallouk
Summary: The use of bipolar membrane (BPM)-enabled acid-base redox flow batteries shows potential to increase the open circuit voltage, power density, and efficiency of the battery through coupled ion transport with water dissociation and acid-base neutralization reactions. This new configuration provides insights into catalyzing these processes and may have applications in improving energy storage in related electrochemical devices.
ACS CENTRAL SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Arnob Das, Susmita Datta Peu, Md. Sanowar Hossain, Md Abdul Mannan Akanda, Mostafa M. Salah, Md Muzaffer Hosen Akanda, Mahbubur Rahman, Barun K. Das
Summary: In recent years, there has been a growing need for improved energy storage technologies to meet the increasing energy requirement and consumption. Two-dimensional metal oxide nanosheets have attracted much attention due to their composition, tunable structure, and large surface area, making them potential materials for energy storage applications. This review focuses on the synthesis approaches of metal oxide nanosheets and their advancements over time, as well as their applicability in various electrochemical energy storage systems. It also discusses the prospects, challenges, and future directions for research and applications of metal oxide nanosheets.
Review
Chemistry, Physical
Jiaqiang Huang, Zongxue Yu, Junlei Tang, Pingquan Wang, Qiuyue Tan, Juan Wang, Xianzhang Lei
Summary: This paper reviews the performance, synthesis and modification methods, and alkaline stability protection of anion-exchange polyelectrolytes (AEPs) in alkaline fuel cells, and summarizes the current research and development status. The evaluation and comparison of different types of AEPs and AEMs deepen the understanding of AEPs in AEMFC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Polymer Science
Qian-Qian Gu, Cui-Liu Fu, Zhao-Yan Sun
Summary: The study proposed a simple one-pot in-situ reaction method to modify commercial polyethylene separators by surface grafting 3-Aminophenol/formaldehyde/silica composite nanoparticles, forming self-supporting connected pores on the surface of the PE@AF/SiO2 separators. This modification resulted in improved lithium battery performance, with higher discharge capacity, capacity retention rate, and coulombic efficiency.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Fatma Demirci, Ahmet Aydin, Mehmet Orhan, Hasan Basri Kocer
Summary: In this study, antibacterial PVDF membranes were successfully produced by directly incorporating novel synthesized N-halamine copolymers with high chlorine loading capacity and compatibility with the base polymer. The presence of the synthesized polymers in the membrane structures was determined using FTIR and XPS analysis. The effects of the synthesized polymers on membrane pore formation and antibacterial performance were investigated through ternary phase diagrams, water flux performance, BSA rejection performance, and SEM images. Biocidal tests showed that the antibacterial membranes exhibited long-term and rapid efficacy against S. aureus and E. coli bacteria with a small amount of copolymer incorporation into PVDF membrane solutions.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Multidisciplinary Sciences
Ngadiwiyana, Gunawan, Nor B. A. Prasetya, Tutuk D. Kusworo, Heru Susanto
Summary: The research focuses on the synthesis of eugenol-allyleugenol copolymer (PEAE) and its sulfonation to form sulfonated eugenol-allyleugenol copolymer (SPEAE) membrane for fuel cell applications. The optimum composition of PEAE was determined through swelling tests, and the best SPEAE copolymer was obtained through a 2-hour sulfonation process. The resulting copolymer membranes exhibited improved stability and proton conductivity, making them suitable for fuel cell applications.
Article
Engineering, Chemical
Santiago P. Fernandez Bordin, Heber E. Andrada, Alejo C. Carreras, Gustavo Castellano, Ralf Schweins, Gabriel J. Cuello, Claudia Mondelli, Victor M. Galvan Josa
Summary: Fuel cells play a strategic role in the global energy system, with a particular focus on eco-cars to reduce CO2 emissions. This study examines the characteristics of commercial polymeric proton exchange membranes using techniques such as small angle neutron scattering for optimization.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Asif Jamil, Sikander Rafiq, Tanveer Iqbal, Hafiza Aroosa Aslam Khan, Haris Mahmood Khan, Babar Azeem, M. Z. Mustafa, Abdulkader S. Hanbazazah
Summary: Fuel cells are environmentally friendly technology with high efficiency and economic advantages. Proton exchange membranes, especially for hydrogen fuel cells, have great potential but face challenges in terms of cost and degradation of proton exchange capacity over time.
Article
Materials Science, Multidisciplinary
Sebastian Auffarth, Maximilian Wagner, Anja Krieger, Birk Fritsch, Linus Hager, Andreas Hutzler, Thomas Boehm, Simon Thiele, Jochen Kerres
Summary: Commercial perfluorosulfonic acid polymers undergo nanophase separation, forming proton-conductive channels that result in high conductivity. Researchers have successfully transferred this phase separation behavior to phosphonic acid functionalized ionomers by synthesizing a di-block-co-polymer containing phosphonated polypentafluorostyrene and flexible polyoctylstyrene. The resulting membrane outperforms a phosphonated pentafluorostyrene blend in terms of conductivity and water uptake.
ACS MATERIALS LETTERS
(2023)
Article
Polymer Science
Yu-Hao Chen, Yi-Huan Lee, Syang-Peng Rwei
Summary: The addition of trace amounts of BAHT-AA as a comonomer significantly enhanced the thermal stability and mechanical properties of coPA6. The introduction of BAHT-AA also effectively increased the network structure and decreased the free volume fraction in the polymer system.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Kumar Divya, Dipak Rana, Meenakshi Sundaram Sri Abirami Saraswathi, Alagumalai Nagendran
Summary: Hybrid membranes fabricated using SPVDF-co-HFP and SOPS are considered to be a better substitute for Nafion in VRFBs, demonstrating good ion-exchangeability and high selectivity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)