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Construction of supramolecular polymer network membrane based on
aluminum ion coordination and its H2/CO2 separation performance

Authors： ZHOU Zihao, HE Yue, DONG Liangliang, ZHANG Chunfang, BAI Yunxiang

Units： Key Laboratory of Synthetic and Biological Colloids，Ministry of Education, School of Chemical and Materials Engineering, Jiangnan University, Wuxi 214122，China

KeyWords： OPBI; coordination cross-linking reaction; membrane, H2/CO2 separation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2025,45(3):118-126

Abstract：

In this paper, OPBI-Al3+ membranes were prepared by membrane immersion method based on the coordination cross-linking reaction between aluminum ions and aryl ether polybenzimidazole (OPBI). The effects of Al3+ concentration in aqueous solution on the physicochemical properties and H2/CO2 separation performance of the membrane were studied. The results show that the N- of the imidazole ring on the OPBI chain can coordinate and cross-link with Al3+ in the aqueous solution to form a dense cross-linked structure. With the increase of Al3+ concentration in aqueous solution, the gel content, cross-linking degree and density of OPBI-Al3+ membrane first increased, and then almost unchanged. When the concentration of Al3+ was 8.44×10-2 mol/L, the H2 permeability of OPBI-Al3+-8.44 membrane was 2.79 Barrer at 35 ℃, which was slightly lower than that of the pure membrane, while the selectivity of H2/CO2 reached 23.60, which was 438.81% higher than that of the pure membrane, breaking through the upper limit of Robeson in 2008.

Funds：

国家自然科学基金面上项目（22075107）

AuthorIntro：

周子豪（2000-），男，湖北荆州人，硕士生，主要从事气体分离膜的研究

Reference：

[1]Lu X, Krutoff A C, Wappler M, et al. Key influencing factors on hydrogen storage and transportation costs: A systematic literature review[J]. Int J Hydrogen Energ, 2025, 105: 308-325.
[2]Mobayen S, Assareh E, Lzadyar N, et al. Multi-functional hybrid energy system for zero-energy residential buildings: Integrating hydrogen production and renewable energy solutions[J]. Int J Hydrogen Energ, 2025, 102: 647-672.
[3]Lee J, Huh C, Seo Y, et al. Reduction of emission and exergy destruction in low-temperature heat-fired hydrogen production[J]. Int J Hydrogen Energ, 2025, 99: 1032-1046.
[4]Zhang J Q, Dong P, Lei H F, et al. Coal-to-aromatics process integrated with dry/steam-mixed reforming: Techno-economic analysis and environmental evaluation[J]. Chem Eng Sci, 2025, 304: 120934.
[5]Singh D, Sirini P, Lombardi L. Review of reforming processes for the production of green hydrogen from landfill gas[J]. Energies, 2025, 18(1): 15.
[6]Abetz V, Brinkmann T, Dijkstra M, et al. Developments in membrane research: From material via process design to industrial application[J]. Adv Eng Mater, 2006, 8(5): 328-358.
[7]Chandramouli M, Ningaiah S, Basavanna V. A comprehensive review on advancements in modification strategies of polymer blends for enhanced carbon dioxide capture and reuse[J]. Environ Qual Manag, 2025, 34(3): e70039.
[8]Tyan N S, Polotskaya G A, Meleshko T K, et al. Influence of the molecular polyimide brush on the gas separation properties of polyphenylene oxide[J]. Russ J Appl Chem, 2019, 92(3): 360-366.
[9]Moon J D, Borjigin H, Liu R, et al. Impact of humidity on gas transport in polybenzimidazole membranes[J]. J Membr Sci, 2021, 639: 119758.
[10]Feng F, Wu J, Weber M, et al. Facile infiltration of polyethyleneimine as a strong CO2 retardant in scalable dual-polymer membranes for H2/CO2 separation[J]. J Membr Sci, 2024, 711: 123217.
[11]Karunaweera C, Panapitiya N P, Panangala S, et al. Carbon-carbon composite membranes derived from small-molecule-compatibilized immiscible PBI/6FDA-DAM-DABA polymer blends[J]. Separations, 2024, 11(4), 108.
[12]Kumar A, Huang L, Hu L Q, et al. Facile one-pot synthesis of PdM (M=Ag, Ni, Cu, Y) nanowires for use in mixed matrix membranes for efficient hydrogen separation[J]. J Mater Chem A, 2021, 9(21): 12755-12762.
[13]Zhu L X, Swihart M T, Lin H Q. Tightening polybenzimidazole (PBI) nanostructure via chemical cross-linking for membrane H2/CO2 separation[J]. J Mater Chem A, 2017, 5(37): 19914-19923.
[14]Wang K Y, Weber M, Chung T S. Polybenzimidazoles (PBIs) and state-of-the-art PBI hollow fiber membranes for water, organic solvent and gas separations: A review[J]. J Mater Chem A, 2022, 10(16): 8687-8718.
[15]Kumbharkar S C, Karadkar P B, Kharul U K. Enhancement of gas permeation properties of polybenzimidazoles by systematic structure architecture[J]. J Membr Sci, 2006, 286(1/2): 161-169.
[16]Yang T X, Xiao Y C, Chung T S. Poly-/metal-benzimidazole nano-composite membranes for hydrogen purification[J]. Energ Environ Sci, 2011, 4(10): 4171-4180.
[17]Yang T X, Shi G M, Chung T S. Symmetric and asymmetric zeolitic imidazolate frameworks (ZIFs)/polybenzimidazole (PBI) nanocomposite membranes for hydrogen purification at high temperatures[J]. Adv Energy Mater, 2012, 2(11): 1358-1367.
[18]Hosseini S S, Teoh M M, Chung T S. Hydrogen separation and purification in membranes of miscible polymer blends with interpenetration networks[J]. Polymer, 2008, 49(6): 1594-1603.
[19]Jiao Y, Wu Q, Lai W, et al. Enhancement of molecular sieving and plasticization resistance of polybenzimidazole membranes through chemical crosslinking for helium recovery from multi-component natural gas[J]. Sep Purif Technol, 2024, 331: 125560.
[20]Hu L Q, Fan S H, Huang L, et al. Supramolecular polymer networks of ion-coordinated polybenzimidazole with simultaneously improved H2 permeability and H2/CO2 selectivity[J]. Macromolecules, 2022, 55(15): 6901-6910.
[21]屈建. 基于金属离子配位作用增强壳聚糖三维材料的研究[D]. 杭州: 浙江大学, 2011.
[22]Zhu B, He S S, Wu Y D, et al. One-step synthesis of structurally stable CO2-philic membranes with ultra-high PEO loading for enhanced carbon capture[J]. Engineering, 2022, 46: 220-228.
[23]Wang N, Feng H W, Hao X H, et al. Dynamic covalent bond and metal coordination bond-cross-linked silicone elastomers with excellent mechanical and aggregation-induced emission properties[J]. Polym Chem-uk, 2023, 14(12): 1396-1403.
[24]Veetil K A, Kannan S, Sun E K, et al. Thermal debromination-induced cross-linking of PIM-polyimide membranes: Improved CO2 gas permeability, selectivity, and separation performance[J]. Sep Purif Technol, 2025, 359(3): 130755.
[25]Naderi A, Tashvigh A A, Chung T S. H2/CO2 separation enhancement via chemical modification of polybenzimidazole nanostructure[J]. J Membr Sci, 2019, 572: 343-349.
[26]Hu L Q, Bui V T, Huang L, et al. Facilely cross-linking polybenzimidazole with polycarboxylic acids to improve H2/CO2 separation performance[J]. ACS Appl Mater Interfaces, 2021, 13(10): 12521-12530.
[27]Zhu L X, Swihart M T, Lin H Q. Unprecedented size-sieving ability in polybenzimidazole doped with polyprotic acids for membrane H2/CO2 separation[J]. Energ Environ Sci, 2018, 11(1): 94-100.

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