Article
Chemistry, Physical
Maedeh Pahlevaninezhad, Elizabeth Esther Miller, Lixin Yang, Lauren Sarah Prophet, Ashutosh Singh, Thomas Storwick, Majid Pahlevani, Michael A. Pope, Edward P. L. Roberts
Summary: The use of ultrathin graphene coating on Nafion membranes significantly improves the performance of vanadium redox flow batteries, leading to higher energy efficiency (increased by 13%), power density (by 67%), and discharge capacity (by 17.5%) over 100 cycles.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jiaye Ye, Du Yuan, Mei Ding, Yong Long, Ting Long, Lidong Sun, Chuankun Jia
Summary: The Nafion/lignin composite membrane shows excellent performance in VRFB, with high conductivity, low vanadium ions permeability, and outstanding cycling stability. Compared to commercial counterparts, it exhibits higher Coulombic efficiency and energy efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Applied
Hyeon Jin Choi, Chulsang Youn, Seong Cheon Kim, Dasom Jeong, Sung Nam Lim, Duck Rye Chang, Jong Wook Bae, Jeasung Park
Summary: In this study, a nanoporous metal-organic framework was utilized as a membrane material for vanadium redox flow batteries to enhance the performance of conventional Nafion membranes. The addition of small amounts of an Al-based MOF with hydroxyl and sulfonic acid functional groups to the Nafion solution resulted in composite membranes with improved physicochemical properties and electrochemical performance. The proposed composite membrane showed better capacity retention and energy efficiency compared to commercial Nafion membranes, indicating potential economic advantages.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Engineering, Chemical
Amirreza Khataee, Hannes Nederstedt, Patric Jannasch, Rakel Wreland Lindstro
Summary: In this study, we synthesized two types of poly(p-terphenylene alkylene)s containing perfluoroalkylsulfonic acid and perfluorophenylsulfonic acid, respectively, through superacid-mediated polyhydroxyalkylations and made proton exchange membranes (PEMs) out of them. Compared to Nafion 212, the PEM with perfluorophenylsulfonic acid groups (PTPF-Phenyl-SA) showed higher ionic conductivity and eight times lower vanadium (IV) permeation rate. The VRFB based on PTPF-Phenyl-SA exhibited longer self-discharge duration, high average coulombic efficiency of 99.6%, and lower capacity fade of 0.24% per cycle compared to Nafion 212.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Md Abdul Aziz, Dabin Han, Sangaraju Shanmugam
Summary: By incorporating TiZrO4 nanotubes into a Nafion composite membrane, a VFB with ultrahigh ion selectivity and superior performance is achieved, including high proton conductivity and increased discharge capacity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Sheeraz Mehboob, Ju-Young Lee, Jee Hun Ahn, Saleem Abbas, Xuan Huy Do, Jaewon Kim, Hyun-Jin Shin, Dirk Henkensmeier, Heung Yong Ha
Summary: In this study, multi-layered PANI-Nafion composite membranes with low vanadium ion permeability were successfully fabricated, which greatly improved the performance of VRFBs and preserved electric capacity almost perfectly. The fabricated membrane showed a high coulombic efficiency of 99% and an energy efficiency of 91% at 50 mA cm-2, outperforming the pristine Nafion 115 membrane. Moreover, it exhibited remarkable durability and capacity retention with a 100% discharge capacity retention over 100 cycles of charge/discharge operation.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Electrochemistry
Alexandros Pasadakis-Kavounis, Funda Arslan, Mads Radmer Almind, David Aili, Johan Hjelm
Summary: In this study, a series of polybenzimidazole-polyvinylchloride polymer blends decorated with different quaternary ammonium groups were investigated. The blend with 90% polybenzimidazole content and decorated with DABCO showed superior performance, including low polarization resistance, low swelling, and high stability in acidic media. This suggests that quaternary ammonium functionalized polybenzimidazole-polyvinylchloride systems are excellent candidates for modification or fabrication of thinner membranes to reduce membrane resistance without compromising vanadium blocking properties.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
V. I. Vlasov, N. A. Gvozdik, M. D. Mokrousov, S. V. Ryazantsev, S. Yu. Luchkin, D. A. Gorin, K. J. Stevenson
Summary: Preferential water transfer (PWT) is an important issue in vanadium flow batteries. In this study, a new method of controlling PWT through membrane modification is proposed. By balancing the concentrations of cation and anion groups on the membrane surface, the direction of PWT can be controlled. The results show that modified bilayer membranes have lower capacity fade and higher energy efficiency.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Jun Su, Jiaye Ye, Zhenyu Qin, Lidong Sun
Summary: In this study, an ultrathin polytetrafluoroethylene (PTFE) film was deposited onto Nafion substrates using radio frequency magnetron sputtering to form PTFE@Nafion composite membranes. The PTFE layer improved the dimensional stability and ion selectivity of the Nafion membranes, resulting in better self-discharge property and discharge capacity retention in the VRFB single cell.
Article
Nanoscience & Nanotechnology
Hongli An, Run Zhang, Wenhao Li, Pan Li, Huidong Qian, Hui Yang
Summary: A chemically-modified Nafion membrane with aminopropyl isobutyl polyhedral oligosilses-quioxane (NH2-POSS) has been developed for vanadium redox flow batteries (VRFBs). The modified membrane shows enhanced ion selectivity, improved dimensional stability, and reduced vanadium ion crossover, resulting in higher efficiency and longer cycle life for the battery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Energy & Fuels
Nana Zhao, Alison Platt, Harry Riley, Ruoxi Qiao, Roberto Neagu, Zhiqing Shi
Summary: Vanadium redox flow batteries (VRFBs) are the most promising and commercially exploited flow batteries for stationary electrical energy storage. However, there is a lack of ion exchange membranes (IEMs) with higher ion selectivity in the market. This review evaluates the requirements and various modification strategies for IEMs in VRFBs and provides recommendations for future exploration and optimization.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Analytical
Fan Yang, Yu Dai, Yu Zhang, Wei Wei, Shicheng Xu, Ronghuan He
Summary: A novel blended polymer membrane is prepared for vanadium redox flow batteries (VRFBs) as the diaphragm, which possesses superior affinity to sulfuric acid due to acid-base interactions. The membrane exhibits high oxidation stability and low vanadium permeability. The VRFB assembled with this membrane shows energy efficiency above 82% at a current density range of 20 to 120 mA cm-2 and stable performance after 50 charge-discharge cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Y. Lei, B. W. Zhang, B. F. Bai, X. Chen, T. S. Zhao
Summary: The study introduces a transient model of VRFB with a bipolar membrane, which improves the Poisson equation to describe the Donnan effect between the two layers for a full description of charge and ion transport. Numerical results demonstrate that bipolar membranes with thin anion exchange layers exhibit higher energy efficiency at large current densities.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Amirreza Khataee, Dong Pan, Joel S. Olsson, Patric Jannasch, Rakel Wreland Lindstrom
Summary: The potential application of a 50 mu m thick anion exchange membrane based on PTPT for VRFBs is investigated. PTPT shows lower vanadium permeation and longer self-discharge duration compared to Nafion 212. Additionally, asymmetric cycling is more effective and efficient for the VRFB assembled with PTPT, with capacity fade of 0.03% cycle(-1) and the highest coulombic efficiency of 98.8% achieved.
JOURNAL OF POWER SOURCES
(2021)
Review
Biochemistry & Molecular Biology
Dennis Dueerkop, Hartmut Widdecke, Carsten Schilde, Ulrich Kunz, Achim Schmiemann
Summary: This review summarizes research progress on membranes for all-vanadium redox flow batteries (VRFB) in the past 25 years, categorizing and discussing which types of membranes are suitable for different VRFB operation modes.
Article
Materials Science, Multidisciplinary
Zewen Ruan, Yongming Zhu, Xiangguo Teng
JOURNAL OF MATERIALS SCIENCE
(2016)
Article
Chemistry, Physical
Xiangguo Teng, Jicui Dai, Fangyuan Bi, Xiaomei Jiang, Yiqiao Song, Geping Yin
SOLID STATE IONICS
(2015)
Article
Polymer Science
Jicui Dai, Xiangguo Teng, Yiqiao Song, Xiaomei Jiang, Geping Yin
JOURNAL OF APPLIED POLYMER SCIENCE
(2016)
Article
Chemistry, Physical
Wantang Li, Huili Hu, Haihao Shi, Xiangguo Teng, Venkataraman Thangadurai, Yongming Zhu
Article
Engineering, Chemical
Jing Ren, Yichao Dong, Jicui Dai, Huili Hu, Yongming Zhu, Xiangguo Teng
JOURNAL OF MEMBRANE SCIENCE
(2017)
Article
Engineering, Chemical
Jicui Dai, Xiangguo Teng, Yiqiao Song, Jing Ren
JOURNAL OF MEMBRANE SCIENCE
(2017)
Article
Chemistry, Physical
Xiangguo Teng, Jicui Dai, Fangyuan Bi, Geping Yin
JOURNAL OF POWER SOURCES
(2014)
Article
Chemistry, Physical
Chunyang Xu, Jicui Dai, Xiangguo Teng, Yongming Zhu
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)