Article
Engineering, Chemical
Yiqin Liu, Xunli Mao, Hong Wu, Xiaoyao Wang, Benbing Shi, Chunyang Fan, Yan Kong, Zhongyi Jiang
Summary: By incorporating sulfonated lignin as an intercalator, highly conductive graphene oxide/sulfonated lignin membranes were prepared. These membranes exhibited high proton conductivity and maximum power density, attributed to the abundant sulfonic acid groups and ether bonds providing additional proton transfer sites, as well as the continuous proton transfer network.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Ravi Bhushan Pathak, Piyush Kumar, Anand Prakash Mishra, Vijay Verma
Summary: This study successfully fabricated a cost-efficient nanocomposite proton exchange membrane by incorporating fly ash nanoparticles into a poly(vinylidene fluoride) polymer matrix. The resulting membrane showed excellent ion exchange capacity and proton conductivity, as well as improved water uptake capacity. Moreover, the membrane exhibited high selectivity, making it a potential alternative to expensive Nafion-117 for DMFC applications.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Energy & Fuels
Khadijeh Hooshyari, Mohammad Bagher Karimi, Huaneng Su, Shahrzad Rahmani, Hamid Reza Rajabi
Summary: Novel nanocomposite proton exchange membranes were prepared using a solution-casting method, incorporating ZnS functionalized quantum dots. The effect of the functionalized groups of the quantum dots on the membrane properties was investigated. The nanocomposite membranes showed high proton conductivity and remarkable performance for fuel cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Arijit Ghorai, Sambit Roy, Sovik Das, Hartmut Komber, Makarand M. Ghangrekar, Brigitte Voit, Susanta Banerjee
Summary: A series of sulfonated polytriazoles were synthesized via copper-induced click polymerization, demonstrating high molecular weight, thermal stability, and proton conductivity, with balanced water management and high oxidative stability. Additionally, the membranes showed a hydrophilic-hydrophobic phase-segregated morphology and comparable performance to Nafion 117 in microbial fuel cells.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Mohammad Atiqur Rahman, Junya Yagyu, Md. Saidul Islam, Masahiro Fukuda, Sora Wakamatsu, Ryuta Tagawa, Zhiqing Feng, Yoshihiro Sekine, Junya Ohyama, Shinya Hayami
Summary: Graphene oxide (GO)-based materials have been extensively studied as low-cost efficient solid electrolytes for fuel-cell application. However, the limited proton conductivity of GO in the out-of-plane directions and associated lower fuel-cell performance restrict their practical application. In this study, a sulfate ion-intercalated three-dimensional graphene oxide (3DSGO) with exceptionally high out-of-plane proton conductivity and improved fuel-cell performance was demonstrated.
ACS APPLIED NANO MATERIALS
(2023)
Article
Polymer Science
Si Shen, Tingting Jia, Jing Jia, Ning Wang, Di Song, Jing Zhao, Jin Jin, Quantong Che
Summary: The proton exchange membranes (PEMs) constructed through alternate depositing chitosan and graphene oxide show improved proton conductivity and mechanical properties in high temperature proton exchange membrane fuel cells (HTPEMFCs). Doped phosphoric acid molecules enhance membrane's mechanical strength, while layer-by-layer deposited composite membranes exhibit excellent proton conductivity and stability. The strategy of alternate depositing functional components on membrane substrates proves to be more effective at enhancing the quality of PEMs.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Engineering, Chemical
Shabab Hussain, Zheng Deng, Amin Khan, Peipei Li, Zhuoyi Li, Zhou Fang, Xinyi Wan, Xinsheng Peng
Summary: Incorporating photothermal-responsive Cu-TCPP nanosheets into SPS membranes enables the nanocomposite membranes to exhibit photo-switchable protonic conductivity, with high loading and well dispersed nanosheets achieved. The nanocomposite membrane with the highest MOFs content shows a high proton conductivity of 1.42 x 10(-4) S cm(-1) and demonstrates photo-switchable properties due to the local photothermal heated Cu-TCPP nanosheets affecting the H-bonding networks with water molecules in proton transport pathways.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Pankaj Kumar, Paramita Das
Summary: This study focuses on the preparation of composite proton exchange membranes based on sulfonated poly(vinyl alcohol) and exfoliated molybdenum disulfide. The membranes exhibit excellent selectivity and proton conductivity, making them suitable for direct methanol fuel cell applications.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Nisar Ali, Farman Ali, Saboor Khan, Zeshan Ali Sheikh, Amir Said, Zahid Nawaz, Ihsanullah Ihsanullah, Muhammad Bilal
Summary: Nafion/sulfonated polyimide (SPI-x) composite membranes were fabricated by incorporating SPI with different ratios of Nafion, demonstrating improved physicochemical properties such as ion exchange capacity and thermal stability. Various analytical techniques confirmed the structure and performance of the composite membranes, with the morphology closely related to the SPI content.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Multidisciplinary
Andrea Basso Peressut, Saverio Latorrata, Paola Gallo Stampino, Giovanni Dotelli
Summary: This study presents a simple method for preparing self-assembling sulfonated graphene oxide membranes, investigating the effect of different sulfuric acid-to-graphene oxide ratios to find an optimal sulfonation interval. The membranes exhibit notable water-retaining and proton-exchanging properties, making them worthy of further optimization for potential use as electrolytes in PEM fuel cells.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Energy & Fuels
Jin Jin, Jing Jia, Di Song, Ning Wang, Ke Liu, Tingting Zuo, Quantong Che
Summary: The research demonstrates the successful construction of proton exchange membranes (PEMs) containing sulfonated graphene oxide (SGO) nanosheets and polyvinyl chloride (PVC) using the spin coating method. By adjusting the content of phosphoric acid and optimizing the structure, the proton conductivity of the composite membranes was improved, showing potential for high-temperature proton exchange membrane fuel cell applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Polymer Science
Tushar Kanti Maiti, Jitendra Singh, Subrata Kumar Maiti, Jagannath Majhi, Arihant Ahuja, Manjinder Singh, Anasuya Bandyopadhyay, Gaurav Manik, Sujay Chattopadhyay
Summary: In this study, the introduction of sulfonic acid functionalized graphene oxide (SGO) into Perfluorosulfonic acid (PFSA) membranes improved the glass transition temperature (Tg), mechanical properties, proton conductivity, and single-cell performance. The loading of SGO increased the Tg and modulus of PFSA composite membranes, leading to enhanced proton conductivity and fuel cell performance.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Khadijeh Hooshyari, Samira Heydari, Hossein Beydaghi, Hamid Reza Rajabi
Summary: This study aims to improve the proton conductivity and fuel cell performance of polymer-based membranes by using specific nanoparticles. The produced membranes exhibit remarkable electrochemical and mechanical performances, achieving high proton conductivity and power density over a wide temperature range and demonstrating long lifetime. These nanocomposite membranes show potential application in fuel cells.
Article
Biochemistry & Molecular Biology
Muhammad Zahid, Tayyaba Khalid, Zulfiqar Ahmad Rehan, Talha Javed, Saba Akram, Anum Rashid, Syed Khalid Mustafa, Rubab Shabbir, Freddy Mora-Poblete, Muhammad Shoaib Asad, Rida Liaquat, Mohamed M. Hassan, Mohammed A. Amin, Hafiz Abdul Shakoor
Summary: The study focused on the fabrication of sulfonated graphene oxide doped polyvinylidene fluoride (PVDF) membrane and its anti-biofouling and anti-bacterial behavior. Results indicated that the addition of SGO enhanced the properties and performance of membranes, showing promising potential for the fabrication of nanocomposite membranes.
Article
Energy & Fuels
Khadijeh Hooshyari, Hamidreza Rezania, Vahid Vatanpour, Mohadese Rastgoo-Deylami, Hamid Reza Rajabi
Summary: This study focused on the synthesis of SPEKIS and preparation of new nanocomposite blend membranes using ZnS FQDs to enhance the proton conductivity and fuel cell performance of PBI membranes. The interactions between thiazole rings and functional groups of SPEKIS and ZnS FQDs, along with PBI groups, were shown to improve the proton conductivity. The best fuel cell performance was achieved with the SPEKIS/PBI/ZnS FQDs nanocomposite blend membranes, demonstrating promising potential for high-temperature fuel cells.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)