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Han J, Zhang Y, Zheng X, Lu Y, Li W, Zhou X, Ren Z, Liu Y, Hu M, Xiao L, Zhuang L. Elastic and Conductive Cross-linked Anion Exchange Membranes Based on Polyphenylene Oxide and Poly(vinyl alcohol) for H 2 -O 2 Fuel Cells. CHEMSUSCHEM 2024; 17:e202300985. [PMID: 37698086 DOI: 10.1002/cssc.202300985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/06/2023] [Accepted: 09/06/2023] [Indexed: 09/13/2023]
Abstract
A series of cross-linked AEMs (c-DQPPO/PVA) are synthesized by using rigid polyphenylene oxide and flexible poly(vinyl alcohol) as the backbones. Dual cations are grafted on the PPO backbone to improve the ion exchange capacity (IEC), while glutaraldehyde is introduced to enhance compatibility and reduce swelling ratio of AEMs. In addition to the enhanced mechanical properties resulting from the rigid-flexible cross-linked network, c-DQPPO/PVA AEMs also exhibit impressive ionic conductivity, which can be attributed to their high IEC, good hydrophilicity of PVA, and well-defined micro-morphology. Additionally, due to confined dimension behavior and ordered micro-morphology, c-DQPPO/PVA AEMs demonstrate excellent chemical stability. Specifically, c-DQPPO/PVA-7.5 exhibits a wet-state tensile strength of 12.5 MPa and an elongation at break of 53.0 % at 25 °C. Its OH- conductivity and swelling degree at 80 °C are measured to be 125.7 mS cm-1 and 8.2 %, respectively, with an IEC of 3.05 mmol g-1 . After 30 days in a 1 M NaOH solution at 80 °C, c-DQPPO/PVA-7.5 experiences degradation rates of 12.8 % for tensile strength, 27.4 % for elongation at break, 14.7 % for IEC, and 19.2 % for ion conductivity. With its excellent properties, c-DQPPO/PVA-7.5 exhibits a peak power density of 0.751 W cm-2 at 60 °C in an H2 -O2 fuel cell.
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Affiliation(s)
- Juanjuan Han
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Yangyang Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Xiumeng Zheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Yuyang Lu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Wanting Li
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Xiaorong Zhou
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Zhandong Ren
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Yi Liu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, 430023, P. R. China
| | - Meixue Hu
- College of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Li Xiao
- College of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Lin Zhuang
- College of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
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Chen JH, Choo YSL, Wang XH, Liu YJ, Yue XB, Gao XL, Gao WT, Zhang QG, Zhu AM, Liu QL. Effects of the crown ether cavity on the performance of anion exchange membranes. J Colloid Interface Sci 2023; 643:62-72. [PMID: 37044014 DOI: 10.1016/j.jcis.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/18/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023]
Abstract
Anion exchange membrane fuel cells (AEMFCs) have emerged as a promising alternative to proton exchange membrane fuel cells (PEMFCs) due to their adaptability to low-cost stack components and non-noble-metals catalysts. However, the poor alkaline resistance and low OH- conductivity of anion exchange membranes (AEMs) have impeded the large-scale implementation of AEMFCs. Herein, the preparation of a new type of AEMs with crown ether macrocycles in their main chains via a one-pot superacid catalyzed reaction was reported. The study aimed to examine the influence of crown ether cavity size on the phase separation structure, ionic conductivity and alkali resistance of anion exchange membranes. Attributed to the self-assembly of crown ethers, the poly (crown ether) (PCE) AEMs with dibenzo-18-crown-6-ether (QAPCE-18-6) exhibit an obvious phase separated structure and a maximum OH- conductivity of 122.5 mS cm-1 at 80 °C (ionic exchange capacity is 1.51 meq g-1). QAPCE-18-6 shows a good alkali resistance with the OH- conductivity retention of 94.5% albeit being treated in a harsh alkali condition. Moreover, the hydrogen/oxygen single cell equipped with QAPCE-18-6 can achieve a peak power density (PPD) of 574 mW cm-2 at a current density of 1.39 A cm-2.
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Affiliation(s)
- Jia Hui Chen
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Yvonne Shuen Lann Choo
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor Darul Ehsan, Malaysia
| | - Xi Hao Wang
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Ying Jie Liu
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Xi Bin Yue
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Xue Lang Gao
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Wei Ting Gao
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Qiu Gen Zhang
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Ai Mei Zhu
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Qing Lin Liu
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China.
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Ghanti B, Kamble R, Roy S, Banerjee S. Synthesis and characterization of sulfonated polytriazoles utilizing 1,4‐bis(4‐azido‐2‐(trifluoromethyl)phenoxy)benzene for the proton exchange membrane applications. JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1002/pol.20220769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Bholanath Ghanti
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Riddhi Kamble
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Sambit Roy
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
| | - Susanta Banerjee
- Materials Science Centre Indian Institute of Technology Kharagpur Kharagpur India
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Rakhshani S, Araneo R, Pucci A, Rinaldi A, Giuliani C, Pozio A. Synthesis and Characterization of a Composite Anion Exchange Membrane for Water Electrolyzers (AEMWE). MEMBRANES 2023; 13:membranes13010109. [PMID: 36676916 PMCID: PMC9860756 DOI: 10.3390/membranes13010109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 05/27/2023]
Abstract
Anion exchange membranes (AEM) have gained attention recently as a promising candidate for low-cost water electrolysis systems to produce hydrogen, linked with renewable energy resources as a sustainable alternative to fossil fuels. The development of potential materials for producing and analyzing AEM is an imperative step towards commercialization and plays a competitive role in the hydrogen production industry. In this article, we developed a composite anion exchange membrane prepared by activating a commercial support structure (Celgard® 3401) with a commercially available functional group (Fumion® FAA-3) through a phase-inversion process. Fourier-transform infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analysis demonstrated the phase-inversion procedure as an effective methodology. Furthermore, the cell performance test result (with Celgard/Fumion) was very promising and even better in comparison with a commercial membrane commonly applied in alkaline electrolysis (Fumasep). We also developed a testing procedure for membrane performance evaluation during electrolysis which is very critical considering the effect of CO2 absorption on membrane conductivity.
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Affiliation(s)
- Somayyeh Rakhshani
- Department of Astronautical, Electrical and Energy Engineering, University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Rodolfo Araneo
- Department of Astronautical, Electrical and Energy Engineering, University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Andrea Pucci
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Antonio Rinaldi
- ENEA, C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy
| | - Chiara Giuliani
- ENEA, C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy
| | - Alfonso Pozio
- ENEA, C.R. Casaccia, Via Anguillarese 301, 00123 Rome, Italy
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