1
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Pacella G, Nabatova M, Zhang Y, Picconi D, Weber RR, Faraji S, Portale G. Harnessing Negative Photochromism in Styryl Cyanines for Light-Modulated Proton Transport. Angew Chem Int Ed Engl 2025:e202506532. [PMID: 40318173 DOI: 10.1002/anie.202506532] [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: 03/21/2025] [Revised: 04/24/2025] [Accepted: 04/29/2025] [Indexed: 05/07/2025]
Abstract
Efficient photoswitches capable of complete conversion to their metastable isomer are not so common, yet highly desirable for applications in smart materials and devices. Here, we report the photochromic behavior of a series of styryl cyanine photoswitches, all demonstrating high switching efficiency, with some achieving full conversion to the metastable form. Despite structural similarities to spiropyran photoswitches, we demonstrate that the photochemistry of styryl cyanines is fundamentally different. Unlike classical photoswitches that rely on double-bond rotation, these molecules undergo substantial geometric changes via the formation of a spiro carbon. This transformation disrupts conjugation, causing a desirable blue shift in absorbance ideal for creating responsive materials and devices. We further show that the switching kinetics can be finely tuned through electronic effects of various substituents or the choice of surrounding medium. These photoswitches exhibit excellent fatigue resistance and can be easily shifted into the visible region via their acidochromic properties. Taking advantage of their high switching efficiency and affinity for acidic polymers, we finally propose their use as smart dopants to develop light-responsive materials with tunable proton transport properties under visible light irradiation.
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Affiliation(s)
- Gianni Pacella
- Zernike Institute for Advanced Materials, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
| | - Maria Nabatova
- Zernike Institute for Advanced Materials, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
| | - Yuxuan Zhang
- Zernike Institute for Advanced Materials, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
| | - David Picconi
- Institute of Theoretical and Computational Chemistry, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Roza R Weber
- Center for Systems Chemistry, Stratigh Institute for Chemistry, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
| | - Shirin Faraji
- Institute of Theoretical and Computational Chemistry, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
- Zernike Institute for Advanced Materials, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
| | - Giuseppe Portale
- Zernike Institute for Advanced Materials, University of Groningen, Nijemborg 3, Groningen, 9757AG, Netherlands
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2
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Stigler T, Auffarth S, Wagner M, Hutzler A, Thiele S, Kerres J. Towards high-temperature fuel cells using sulfonated-phosphonated poly(pentafluorostyrene). Chem Commun (Camb) 2025; 61:5134-5137. [PMID: 40066673 DOI: 10.1039/d4cc06418f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2025]
Abstract
Herein, we present a hybrid polymer material with phosphonic acid and sulfonic acid moieties on a poly(pentafluorostyrene) backbone utilizing the SNAr Michaelis-Arbuzov and the para-fluoro-thiol reaction. Blending the hybrid material with a benzimidazole polymer yielded a mechanically stable membrane featuring proton conductivities up to three times higher than conventional Nafion N211 at temperatures above 120 °C.
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Affiliation(s)
- Theresa Stigler
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
- Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Immerwahrstr. 2a, 91058 Erlangen, Germany
| | - Sebastian Auffarth
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
- Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Immerwahrstr. 2a, 91058 Erlangen, Germany
| | - Maximilian Wagner
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
- Fraunhofer-Institut für Keramische Technologien und Systeme IKTS, Äußere Nürnberger Straße 62, 91301 Forchheim, Germany
| | - Andreas Hutzler
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
| | - Simon Thiele
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
- Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Immerwahrstr. 2a, 91058 Erlangen, Germany
| | - Jochen Kerres
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IET-2), Cauerstr. 1, 91058 Erlangen, Germany.
- Chemical Resource Beneficiation Faculty of Natural Sciences, North-West University, Potchefstroom 2520, South Africa
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3
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Chen Y, Yang T, Lin Y, Evans CM. Ion transport in helical-helical polypeptide polymerized ionic liquid block copolymers. Nat Commun 2025; 16:2451. [PMID: 40069217 PMCID: PMC11897142 DOI: 10.1038/s41467-025-57784-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2024] [Accepted: 03/04/2025] [Indexed: 03/15/2025] Open
Abstract
Helical-helical polypeptide polymerized ionic liquid block copolymers (PPIL BCPs) are synthesized to investigate the role of helical structure on self-assembly and ionic conductivity. PPIL BCPs, consisting of a cationic polypeptide (PTPLG) with bis(trifluoromethane sulfonimide) (TFSI) counterion and varying lengths connected to a length-fixed neutral poly-(γ-benzyl-L-glutamate) (PBLG) block, exhibit stable helical conformations with minimal glass transition (Tg) variation. Here, we show that increasing PIL composition leads to a transition from poorly ordered to highly ordered lamellar (LAM) structures with the highest PIL content BCP forming a bilayer LAM structure with close-packed helices. This morphology yields a 1.5 order of magnitude higher Tg- and volume fraction-normalized ionic conductivity and a morphology factor f > 0.8 compared to less ordered BCPs with f < 0.05 and f = 2/3 for ideal lamellae. These results highlight the critical role of helical structure in optimizing ion transport, offering a design strategy for high-performance solid electrolytes.
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Affiliation(s)
- Yingying Chen
- Department of Materials Science and Engineering, Materials Research Laboratory, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Tianjian Yang
- Department of Chemistry, University of Connecticut, Storrs, CT, USA
| | - Yao Lin
- Department of Chemistry, University of Connecticut, Storrs, CT, USA
| | - Christopher M Evans
- Department of Materials Science and Engineering, Materials Research Laboratory, University of Illinois Urbana-Champaign, Urbana, IL, USA.
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4
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Aoki N, Tang Y, Zeng X, Ichikawa T. Design of Functional Gyroid Minimal Surfaces Transporting Proton Based Solely on Surface Hopping Conduction Mechanism. Macromol Rapid Commun 2025; 46:e2400619. [PMID: 39491048 DOI: 10.1002/marc.202400619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 10/03/2024] [Indexed: 11/05/2024]
Abstract
Surface proton hopping conduction (SPHC) mechanisms is an important proton conduction mechanism in conventional polymer electrolytes, along with the Grotthuss and vehicle mechanisms. Due to the small diffusion coefficient of protons in the SPHC mechanism, few studies have focused on the SPHC mechanism. Recently, it has been found that a dense alignment of SO3 - groups significantly lowers the activation energy in the SPHC mechanism, enabling fast proton conduction. In this study, a series of polymerizable amphiphilic-zwitterions is prepared, forming bicontinuous cubic liquid-crystalline assemblies with gyroid symmetry in the presence of suitable amounts of bis(trifluoromethanesulfonyl) imide (HTf2N) and water. In situ polymerization of these compounds yields gyroid-nanostructured polymer films, as confirmed by synchrotron small-angle X-ray scattering experiments. The high proton conductivity of the films on the order of 10-2 S cm-1 at 40 °C and relative humidity of 90% is based solely on the SPHC mechanism.
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Affiliation(s)
- Nanami Aoki
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
| | - Yumin Tang
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, UK
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield, S1 3JD, UK
| | - Takahiro Ichikawa
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
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5
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Zhang Q, Zhang J, Qiu J, Chen C, Yang Z, Li W, Wang M, Li T, Wu W, Wang J. Detecting the Conduction Property of Proton Carriers at Different Relative Humidity Based on Postsynthetic MOF Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2024; 16:67697-67705. [PMID: 39591662 DOI: 10.1021/acsami.4c13776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2024]
Abstract
Exploring the transfer ability of proton carriers at different relative humidity (RH) is vital for the rational design and development of high-performance proton exchange membranes (PEMs). However, the highly humidity-dependent transfer channel and random carrier distribution disqualify most membrane materials. Herein, a series of MIL-53 metal-organic framework (MOF) nanosheets with stable, quantifiable pore structures and different conducting groups are prepared through postsynthetic ligand exchange, followed by spin coating to assemble lamellar membranes. We demonstrated that proper binding energy between the carrier group and water molecule is favorable for proton transfer based on the vehicle mechanism at low RH. Particularly, strong binding energy traps water molecules, hindering proton transfer even though the carrier possesses a higher proton dissociation constant. Thus, at 20% RH and 80 °C, AlBDC-COOH attains a higher proton conductivity of 13.6 mS cm-1 than AlBDC-SO3H (11.9 mS cm-1). In contrast, with an incremental content of water, the available diffusion space of water molecules progressively diminishes, leading to a reduced diffusion ability and thus a lower contribution of vehicle transfer. Accordingly, jump transfer becomes the dominant proton conduction process, and the abundant hydrogen bond networks in the AlBDC-SO3H membrane provide more proton transfer paths and thus a higher proton conductivity of 73.1 mS cm-1 at 80 °C and 100% RH, over 1 order of magnitude higher than that of the pristine Al-BDC membrane (6.2 mS cm-1). This study may shed light on the functional group selection of PEMs targeting different operation conditions.
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Affiliation(s)
- Qingqing Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Jie Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Junjie Qiu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Chongchong Chen
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Zhirong Yang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Wenpeng Li
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Mingchao Wang
- Yutong Bus Co., Ltd., Zhengzhou, Henan 450061, P. R. China
| | - Tengfei Li
- Yutong Bus Co., Ltd., Zhengzhou, Henan 450061, P. R. China
| | - Wenjia Wu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Jingtao Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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6
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Martínez-López JC, Santos Rodríguez M, Oliver Cuenca V, Silva Testa G, van Eck E, Zhao EW, Lozano ÁE, Álvarez C, Carretero-González J. Dibenzodioxin-Based Polymers of Intrinsic Microporosity with Enhanced Transport Properties for Lithium Ions in Aqueous Media. Macromolecules 2024; 57:9442-9456. [PMID: 39399831 PMCID: PMC11468783 DOI: 10.1021/acs.macromol.4c01243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 09/16/2024] [Accepted: 09/17/2024] [Indexed: 10/15/2024]
Abstract
Boosting the transport and selectivity properties of membranes based on polymers of intrinsic microporosity (PIMs) toward one specific working analyte of interest is challenging. In this work, a novel family of PIM membranes, prepared by casting and exhibiting optima mechanical properties and high thermal stability, was synthesized from 4,4'-(2,2,2-trifluoro-1-phenylethane-1,1-diyl) bis(benzene-1,2-diol) and two tetrafluoro-nitrile derivatives. Gas permeability measurements evidenced a CO2/CH4 selectivity up to 170% relative to the reference polymer, PIM-1, in agreement with their calculated fractional free volume and the analysis of the textural properties by N2 and CO2 gas adsorption. Besides, the chemical modification by acid hydrolysis of the PIM membranes favored the permeability for lithium ions (LiCl 2M, 6 × 10-9 cm2·s-1) compared to other alkali metal analogs such as sodium (NaCl 2M, 7.38 × 10-10 cm2·s-1) and potassium (KCl 2M, 1.05 × 10-9 cm2·s-1). Moreover, the complete mitigation of the crossover of redox species with higher molecular sizes than the ions from alkali metal salts was confirmed by using in-line benchtop NMR methods. Additionally, the modified PIM membranes were measured in a symmetric electrochemical flow cell using an aqueous electrolyte by combining lithium ferro/ferricyanide redox compounds and lithium chloride. The electrochemical tests showed low polarization, high-rate capability, and capacity retention values of 99% when cycled at 10 mA·cm-2 for over 50 cycles. Based on these results, these polymers could be used as highly selective and conducting membranes in electrodialysis for lithium separation and lithium-based redox flow batteries and as a protective layer in high-energy density lithium metal batteries.
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Affiliation(s)
| | - Marta Santos Rodríguez
- Institute
of Polymer Science and Technology, ICTP, CSIC, C/Juan de la Cierva, 3, Madrid 28006, Spain
| | - Víctor Oliver Cuenca
- Institute
of Polymer Science and Technology, ICTP, CSIC, C/Juan de la Cierva, 3, Madrid 28006, Spain
| | - Giu Silva Testa
- Magnetic
Resonance Research Center, Institute for Molecules and Materials, Radboud University, Nijmegen, AJ 6525, The Netherlands
| | - Ernst van Eck
- Magnetic
Resonance Research Center, Institute for Molecules and Materials, Radboud University, Nijmegen, AJ 6525, The Netherlands
| | - Evan Wenbo Zhao
- Magnetic
Resonance Research Center, Institute for Molecules and Materials, Radboud University, Nijmegen, AJ 6525, The Netherlands
| | - Ángel E. Lozano
- Institute
of Polymer Science and Technology, ICTP, CSIC, C/Juan de la Cierva, 3, Madrid 28006, Spain
| | - Cristina Álvarez
- Institute
of Polymer Science and Technology, ICTP, CSIC, C/Juan de la Cierva, 3, Madrid 28006, Spain
| | - Javier Carretero-González
- Institute
of Polymer Science and Technology, ICTP, CSIC, C/Juan de la Cierva, 3, Madrid 28006, Spain
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7
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Lee SY, Kang DR, Oh JG, Chae IS, Kim JH. Dumbbell-Shaped, Block-Graft Copolymer with Aligned Domains for High-Performance Hydrocarbon Polymer Electrolyte Membranes. Angew Chem Int Ed Engl 2024; 63:e202406796. [PMID: 38730495 DOI: 10.1002/anie.202406796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/13/2024]
Abstract
Given the environmental concerns surrounding fluoromaterials, the use of high-cost perfluorinated sulfonic acids (PFSAs) in fuel cells and water electrolysis contradicts the pursuit of clean energy systems. Herein, we present a fluorine-free dumbbell-shaped block-graft copolymer, derived from the cost-effective triblock copolymer, poly(styrene-b-ethylene-co-butylene-b-styrene) (SEBS), for polymer electrolyte membranes (PEMs). This unique polymer shape led to the alignment of the hydrophobic-hydrophilic domains along a preferred orientation, resulting in the construction of interconnected proton channels across the membrane. A bicontinuous network allowed efficient proton transport with reduced tortuosity, leading to an exceptional ionic conductivity (249 mS cm-1 at 80 °C and 90 % relative humidity (RH)), despite a low ion exchange capacity (IEC; 1.41). Furthermore, membrane electrode assembly (MEA) prepared with our membrane exhibited stable performance over a period of 150 h at 80 °C and 30 % RH. This study demonstrates a novel polymer structure design and highlights a promising outlook for hydrocarbon PEMs as alternatives to PFSAs.
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Affiliation(s)
- So Youn Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Du Ru Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jong-Gil Oh
- Advanced Fuel Cell Technology Development Team, CTO, Hyundai Motor Company, Yongin-si, Gyeonggi-do, 16891, Republic of Korea
| | - Il Seok Chae
- Advanced Fuel Cell Technology Development Team, CTO, Hyundai Motor Company, Yongin-si, Gyeonggi-do, 16891, Republic of Korea
| | - Jong Hak Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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8
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Ichikawa T, Yamada T, Aoki N, Maehara Y, Suda K, Kobayashi T. Surface proton hopping conduction mechanism dominant polymer electrolytes created by self-assembly of bicontinuous cubic liquid crystals. Chem Sci 2024; 15:7034-7040. [PMID: 38756814 PMCID: PMC11095363 DOI: 10.1039/d4sc01211a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/08/2024] [Indexed: 05/18/2024] Open
Abstract
For the development of the next generation of fuel cells, it is essential to create an innovative design principle of polymer electrolytes that is beyond extension of the existing strategy. In the present study, we focused on the surface hopping proton conduction mechanism where an activation energy for proton conduction is greatly reduced by decreasing the distance between SO3- groups. Our gyroid nanostructured polymer film (Film-G), with a hydrophilic surface where the SO3- groups are aligned densely and precisely, shows high proton conductivity of the order of 10-2 S cm-1 when the water content is about 15 wt%. We reveal that the high proton conductivity of Film-G is attributed to the exhibition of an extremely-fast surface hopping conduction mechanism due to the reduced activation energy barrier along the gyroid minimal surface. This finding should introduce a game-changing novel opportunity in polymer electrolyte design.
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Affiliation(s)
- Takahiro Ichikawa
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology Naka-cho Koganei Tokyo 184-8588 Japan
| | - Takeshi Yamada
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society Tokai Ibaraki 319-1106 Japan
| | - Nanami Aoki
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology Naka-cho Koganei Tokyo 184-8588 Japan
| | - Yuki Maehara
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology Naka-cho Koganei Tokyo 184-8588 Japan
| | - Kaori Suda
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology Naka-cho Koganei Tokyo 184-8588 Japan
| | - Tsubasa Kobayashi
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology Naka-cho Koganei Tokyo 184-8588 Japan
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9
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Zheng W, Zhao Y, Zhang H, Zhang L, Zhang Z. Extending the Cycle Lifetime of Solid-State Zinc-Air Batteries by Arranging Stable Zinc Species Channels. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8885-8894. [PMID: 38330505 DOI: 10.1021/acsami.3c17999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The solid-state zinc-air batteries have attracted extensive attention due to their high theoretical energy density, high safety, and the compact structure. In this work, a novel hydrogel solid-state electrolyte was developed that was equipped with an interpenetrating network of zinc polyacrylate (PAZn) and polyacrylamide (PAM). At the same time, a cyclodextrin derivative with sulfonate groups was introduced as an additive. From the design of anionic groups in the network, effective and stable channels for zinc species have been established. The unique structure of the additives regulates the uniform deposition of zinc. After using this solid-state electrolyte, the cycle lifetime of solid-state zinc-air batteries assembled have been significantly extended. The byproducts were greatly suppressed and generated the smooth zinc electrode surface after the charge-discharge cycling.
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Affiliation(s)
- Wei Zheng
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Yan Zhao
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Hui Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Lixue Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Zhongyi Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, P. R. China
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10
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Lee CJ, Hong SJ, Song J, Yoon KS, Oh KH, Lee JY, Yoon SJ, Hong YT, Lee SY, Yu DM, So S. Porous Polyethylene Supports in Reinforcement of Multiblock Hydrocarbon Ionomers for Proton Exchange Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18834-18845. [PMID: 38091527 DOI: 10.1021/acs.langmuir.3c02540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Hydrocarbon (HC)-based block copolymers have been recognized as promising candidates for proton exchange membranes (PEMs) due to their distinct hydrophilic-hydrophobic separation, which results in improved proton transport compared to that of random copolymers. However, most PEMs derived from HC-based ionomers, including block copolymers, encounter challenges related to durability in electrochemical cells due to their low mechanical and chemical properties. One method for reinforcing HC-based ionomers involves incorporating the ionomers into commercially available low surface tension PTFE porous substrates. Nevertheless, the high interfacial energy between the hydrocarbon-based ionomer solution and PTFE remains a challenge in this reinforcement process, which necessitates the application of surface energy treatment to PTFE. Here, multiblock sulfonated poly(arylene ether sulfone) (SPAES) ionomers are being reinforced using untreated PE on the surface, and this is compared to reinforcement using surface-treated porous PTFE. The PE support layer exhibits a lower surface energy barrier compared to the surface-treated PTFE layer for the infiltration of the multiblock SPAES solution. This is characterized by the absence of noticeable voids, high translucency, gas impermeability, and a physical and chemical stability. By utilizing a high surface tension PE support with a comparable value to the multiblock SPAES, effective reinforcement of the multiblock SPAES ionomers is achieved for a PEM, which is potentially applicable to various hydrogen energy-based electrochemical cells.
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Affiliation(s)
- Chang Jin Lee
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, South Korea
| | - Seung Jae Hong
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Jaeheon Song
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, South Korea
| | - Kyung Seok Yoon
- R&D Center, W-SCOPE Korea Co., LTD., Cheongju 28122, South Korea
| | - Keun-Hwan Oh
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Jang Yong Lee
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Sang Jun Yoon
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Young Taik Hong
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Sang-Young Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, South Korea
| | - Duk Man Yu
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
| | - Soonyong So
- Hydrogen Energy Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, South Korea
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11
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Wu Y, Wang Y, Zhang D, Xu F, Dai L, Qu K, Cao H, Xia Y, Li S, Huang K, Xu Z. Crystallizing Self-Standing Covalent Organic Framework Membranes for Ultrafast Proton Transport in Flow Batteries. Angew Chem Int Ed Engl 2023; 62:e202313571. [PMID: 37885408 DOI: 10.1002/anie.202313571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 10/28/2023]
Abstract
Covalent organic frameworks (COFs) display great potential to be assembled into proton conductive membranes for their uniform and controllable pore structure, yet constructing self-standing COF membrane with high crystallinity to fully exploit their ordered crystalline channels for efficient ionic conduction remains a great challenge. Here, a macromolecular-mediated crystallization strategy is designed to manipulate the crystallization of self-standing COF membrane, where the -SO3 H groups in introduced sulfonated macromolecule chains function as the sites to interact with the precursors of COF and thus offer long-range ordered template for membrane crystallization. The optimized self-standing COF membrane composed of highly-ordered nanopores exhibits high proton conductivity (75 mS cm-1 at 100 % relative humidity and 20 °C) and excellent flow battery performance, outperforming Nafion 212 and reported membranes. Meanwhile, the long-term run of membrane is achieved with the help of the anchoring effect of flexible macromolecule chains. Our work provides inspiration to design self-standing COF membranes with ordered channels for permselective application.
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Affiliation(s)
- Yulin Wu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, No.130 Meilong Road, Shanghai, 200237, China
| | | | | | - Fang Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing, 211816, China
| | - Liheng Dai
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, No.130 Meilong Road, Shanghai, 200237, China
| | - Kai Qu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, No.130 Meilong Road, Shanghai, 200237, China
| | - Hongyan Cao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing, 211816, China
| | - Yu Xia
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing, 211816, China
| | - Siyao Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, No.130 Meilong Road, Shanghai, 200237, China
| | - Kang Huang
- Suzhou Laboratory, Suzhou, 215000, China
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, No. 30 Puzhu South Road, Nanjing, 211816, China
| | - Zhi Xu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, No.130 Meilong Road, Shanghai, 200237, China
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12
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de Wild T, Wurm J, Becker P, Günther D, Nauser T, Schmidt TJ, Gubler L, Nemeth T. A Nature-Inspired Antioxidant Strategy based on Porphyrin for Aromatic Hydrocarbon Containing Fuel Cell Membranes. CHEMSUSCHEM 2023; 16:e202300775. [PMID: 37551734 DOI: 10.1002/cssc.202300775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/09/2023]
Abstract
The use of hydrocarbon-based proton conducting membranes in fuel cells is currently hampered by the insufficient durability of the material in the device. Membrane aging is triggered by the presence of reactive intermediates, such as HO⋅, which attack the polymer and eventually lead to chain breakdown and membrane failure. An adequate antioxidant strategy tailored towards hydrocarbon-based ionomers is therefore imperative to improve membrane lifetime. In this work, we perform studies on reaction kinetics using pulse radiolysis and γ-radiolysis as well as fuel cell experiments to demonstrate the feasibility of increasing the stability of hydrocarbon-based membranes against oxidative attack by implementing a Nature-inspired antioxidant strategy. We found that metalated-porphyrins are suitable for damage transfer and can be used in the fuel cell membrane to reduce membrane aging with a low impact on fuel cell performance.
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Affiliation(s)
- Tym de Wild
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Jan Wurm
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Pascal Becker
- Laboratory of Inorganic Chemistry, ETH Zurich, 8093, Zurich, Switzerland
| | - Detlef Günther
- Laboratory of Inorganic Chemistry, ETH Zurich, 8093, Zurich, Switzerland
| | - Thomas Nauser
- Laboratory of Inorganic Chemistry, ETH Zurich, 8093, Zurich, Switzerland
| | - Thomas J Schmidt
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
- Laboratory of Physical Chemistry, ETH Zurich, 8093, Zurich, Switzerland
| | - Lorenz Gubler
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Tamas Nemeth
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
- Laboratory of Inorganic Chemistry, ETH Zurich, 8093, Zurich, Switzerland
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13
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Song Y, Fang Q, Liu B, Hu B, Su Z. Efficient Proton Conductor Based on Bismuth Oxide Clusters and Polyoxometalates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14511-14518. [PMID: 37782751 DOI: 10.1021/acs.langmuir.3c01441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Developing new solid-state electrolyte materials for improving the proton conductivity remains an important challenge. Herein, a novel two-dimensional layered solid-state proton conductor Bi2O2-SiW12 nanocomposite, based on silicotungstic acid (H4SiW12O40) and Bi(NO3)3·5H2O, was synthesized and characterized. The composite consists of a layered cation framework [Bi2O2]2+ and interlayer-embedded counteranionic [SiW12O40]4-, which forms continuous hydrogen bond (O-H···O) networks through the interaction of adjacent oxygen atoms on the surface of the [Bi2O2]2+ and oxygen atoms of the H4SiW12O40. Facile proton transfer along these pathways endows the Bi2O2-SiW12 (30:1) nanocomposite with an excellent proton conductivity of 3.61 mS cm-1 at 90 °C and 95% relative humidity, indicating that the nanocomposite has good prospects as a highly efficient proton conductor.
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Affiliation(s)
- Yingjie Song
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Qing Fang
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Bailing Liu
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
| | - Bo Hu
- National & Local United Engineering Laboratory for Power Battery, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zhongmin Su
- Jilin Provincial International Joint Research Center of Photo-functional Materials and Institution Chemistry, School of Chemistry and Environmental Engineering, Jilin Provincial Science and Technology Innovation Centre of Optical Materials and Chemistry, Changchun University of Science and Technology, Changchun 130022, China
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, Changchun 130021, China
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14
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Kang SH, Jeong HY, Yoon SJ, So S, Choi J, Kim TH, Yu DM. Hydrocarbon-Based Composite Membrane Using LCP-Nonwoven Fabrics for Durable Proton Exchange Membrane Water Electrolysis. Polymers (Basel) 2023; 15:polym15092109. [PMID: 37177255 PMCID: PMC10181224 DOI: 10.3390/polym15092109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
A new hydrocarbon-based (HC) composite membrane was developed using liquid crystal polymer (LCP)-nonwoven fabrics for application in proton exchange membrane water electrolysis (PEMWE). A copolymer of sulfonated poly(arylene ether sulfone) with a sulfonation degree of 50 mol% (SPAES50) was utilized as an ionomer for the HC membranes and impregnated into the LCP-nonwoven fabrics without any surface treatment of the LCP. The physical interlocking structure between the SPAES50 and LCP-nonwoven fabrics was investigated, validating the outstanding mechanical properties and dimensional stability of the composite membrane in comparison to the pristine membrane. In addition, the through-plane proton conductivity of the composite membrane at 80 °C was only 15% lower than that of the pristine membrane because of the defect-free impregnation state, minimizing the decrease in the proton conductivity caused by the non-proton conductive LCP. During the electrochemical evaluation, the superior cell performance of the composite membrane was evident, with a current density of 5.41 A/cm2 at 1.9 V, compared to 4.65 A/cm2 for the pristine membrane, which can be attributed to the smaller membrane resistance of the composite membrane. From the results of the degradation rates, the prepared composite membrane also showed enhanced cell efficiency and durability during the PEMWE operations.
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Affiliation(s)
- Seok Hyeon Kang
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Hwan Yeop Jeong
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Sang Jun Yoon
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Soonyong So
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Jaewon Choi
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Tae-Ho Kim
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Duk Man Yu
- Energy Materials Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
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15
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Yu W, Wei C, Zhang K, Zhang J, Ge Z, Liang X, Guiver MD, Ge X, Wu L, Xu T. Host-Guest Recognition Boosts Biomimetic Mono/Multivalent Cation Separation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:5861-5871. [PMID: 36988386 DOI: 10.1021/acs.est.2c09733] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Biomimetic ion permselective membranes with ultrahigh ion permeability and selectivity represent a research frontier in ion separation, yet the successful fabrication of such membranes remains a formidable challenge. Here, we demonstrate a 4-sulfocalix[4]arene (4-SCA)-modified graphene oxide (GO) membrane that shows extraordinary performance in separating mono-from multivalent cations, as well as having reversible pH-responsiveness. The resulting 4-SCA-modified GO (SCA-GO) membrane preferentially transports potassium ions (K+) over radionuclide cations (Co2+, UO22+, La3+, Eu3+, and Th4+). The ion selectivities are an order of magnitude higher than that of the unmodified GO membrane. Theoretical calculations and experimental investigations demonstrate that the much-improved ion selectivity arises from the specific recognition between 4-SCA and radionuclide cations. The transport of multivalent radionuclides is impeded by a binding-obstructing mechanism from the host-guest interactions. Interestingly, the host-guest interactions are responsive to the protonation/deprotonation transformation of the 4-SCA. Therefore, the SCA-GO membrane mimics pH-regulated ion selective behavior found in biological ion channels. Our strategy of designing a biomimetic permselective GO membrane may allow efficient nuclear wastewater treatment and, more importantly, deepen our understanding of biomimetic ion transport mechanisms.
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Affiliation(s)
- Weisheng Yu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Chengpeng Wei
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Kaiyu Zhang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Jianjun Zhang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Zijuan Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Xian Liang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Michael D Guiver
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Xiaolin Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Liang Wu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Tongwen Xu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
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16
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Kumar A, Chang DW. Towards the Future of Polymeric Hybrids of Two-Dimensional Black Phosphorus or Phosphorene: From Energy to Biological Applications. Polymers (Basel) 2023; 15:polym15040947. [PMID: 36850230 PMCID: PMC9962990 DOI: 10.3390/polym15040947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
With the advent of a new 2D nanomaterial, namely, black phosphorus (BP) or phosphorene, the scientific community is now dedicated to focusing on and exploring this 2D material offering elusive properties such as a higher carrier mobility, biocompatibility, thickness-dependent band gap, and optoelectronic characteristics that can be harnessed for multiple applications, e.g., nanofillers, energy storage devices, field effect transistors, in water disinfection, and in biomedical sciences. The hexagonal ring of phosphorus atoms in phosphorene is twisted slightly, unlike how it is in graphene. Its unique characteristics, such as a high carrier mobility, anisotropic nature, and biocompatibility, have attracted much attention and generated further scientific curiosity. However, despite these interesting features, the phosphorene or BP poses challenges and causes frustrations when it comes to its stability under ambient conditions and processability, and thus in order to overcome these hurdles, it must be conjugated or linked with the suitable and functional organic counter macromolecule in such a way that its properties are not compromised while providing a protection from air/water that can otherwise degrade it to oxides and acid. The resulting composites/hybrid system of phosphorene and a macromolecule, e.g., a polymer, can outperform and be exploited for the aforementioned applications. These assemblies of a polymer and phosphorene have the potential for shifting the paradigm from exhaustively used graphene to new commercialized products offering multiple applications.
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17
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Huang T, Jiang H, Douglin JC, Chen Y, Yin S, Zhang J, Deng X, Wu H, Yin Y, Dekel DR, Guiver MD, Jiang Z. Single Solution-Phase Synthesis of Charged Covalent Organic Framework Nanosheets with High Volume Yield. Angew Chem Int Ed Engl 2023; 62:e202209306. [PMID: 36395246 DOI: 10.1002/anie.202209306] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/22/2022] [Accepted: 11/17/2022] [Indexed: 11/19/2022]
Abstract
Covalent organic framework nanosheets (COF-NSs) are emerging building blocks for functional materials, and their scalable fabrication is highly desirable. Current synthetic methods suffer from low volume yields resulting from confined on-surface/at-interface growth space and complex multiple-phase synthesis systems. Herein, we report the synthesis of charged COF-NSs in open space using a single-phase organic solution system, achieving magnitudes higher volume yields of up to 18.7 mg mL-1 . Charge-induced electrostatic repulsion forces enable in-plane anisotropic secondary growth from initial discrete and disordered polymers into large and crystalline COF-NSs. The charged COF-NS colloidal suspensions are cast into thin and compact proton exchange membranes (PEMs) with lamellar morphology and oriented crystallinity, displaying outstanding proton conductivity, negligible dimensional swelling, and good H2 /O2 fuel cell performance.
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Affiliation(s)
- Tong Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.,State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China.,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Haifei Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.,State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China
| | - John C Douglin
- The Wolfson Department of Chemical Engineering, Technion, Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yu Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Shuoyao Yin
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China
| | - Junfeng Zhang
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China.,National Industry-Education Platform of Energy Storage, Tianjin University, Tianjin, 300072, China
| | - Xiaojuan Deng
- Analysis and Testing Center, Tianjin University, Tianjin, 300072, China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Yan Yin
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China.,National Industry-Education Platform of Energy Storage, Tianjin University, Tianjin, 300072, China
| | - Dario R Dekel
- The Wolfson Department of Chemical Engineering, Technion, Israel Institute of Technology, Haifa, 3200003, Israel.,The Nancy & Stephen Grand Technion Energy Program (GTEP), Technion, Israel Institute of Technology, Haifa, 3200003, Israel
| | - Michael D Guiver
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China.,National Industry-Education Platform of Energy Storage, Tianjin University, Tianjin, 300072, China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
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18
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Kim SY, Kang M, Kang DW, Kim H, Choe JH, Yun H, Hong CS. Electronic Effect-Modulated Enhancements of Proton Conductivity in Porous Organic Polymers. Angew Chem Int Ed Engl 2023; 62:e202214301. [PMID: 36367202 DOI: 10.1002/anie.202214301] [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: 09/28/2022] [Indexed: 11/13/2022]
Abstract
We proposed a new strategy to maximize the density of acidic groups by modulating the electronic effects of the substituents for high-performance proton conductors. The conductivity of the sulfonated 1-MeL40-S with methyl group corresponds to 2.29×10-1 S cm-1 at 80 °C and 90 % relative humidity, remarkably an 22100-fold enhancement over the nonsulfonated 1-MeL40. 1-MeL40-S maintains long-term conductivity for one month. We confirm that this synthetic method is generalized to the extended version POPs, 2-MeL40-S and 3-MeL40-S. In particular, the conductivities of the POPs compete with those of top-level porous organic conductors. Moreover, the activation energy of the POPs is lower than that of the top-performing materials. This study demonstrates that systematic alteration of the electronic effects of substituents is a useful route to improve the conductivity and long-term durability of proton-conducting materials.
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Affiliation(s)
- Sun Young Kim
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Minjung Kang
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Dong Won Kang
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Hyojin Kim
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Jong Hyeak Choe
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Hongryeol Yun
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry, Korea university, Seoul, 02841, Republic of Korea
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19
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Ghorai A, Banerjee S. Phosphorus-Containing Aromatic Polymers: Synthesis, Structure, Properties and Membrane-Based Applications. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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20
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Zheng Y, Zhou Z, Jiao M, Wang L, Zhang J, Wu W, Wang J. Lamellar membrane with orderly aligned glycine molecules for efficient proton conduction. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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21
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Wan L, Pang M, Le J, Xu Z, Zhou H, Xu Q, Wang B. Oriented intergrowth of the catalyst layer in membrane electrode assembly for alkaline water electrolysis. Nat Commun 2022; 13:7956. [PMID: 36575177 PMCID: PMC9794718 DOI: 10.1038/s41467-022-35603-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
The application of membrane electrode assemblies is considered a promising approach for increasing the energy efficiency of conventional alkaline water electrolysis. However, previous investigations have mostly focused on improving membrane conductivity and electrocatalyst activity. This study reports an all-in-one membrane electrode assembly obtained by de novo design. The introduction of a porous membrane readily enables the oriented intergrowth of ordered catalyst layers using solvothermal methods, leading to the formation of an all-in-one MEA for alkaline water electrolysis. This all-in-one MEA features ordered catalyst layers with large surface areas, a low-tortuosity pore structure, integrated catalyst layer/membrane interfaces, and a well-ordered OH- transfer channel. Owing to this design, a high current density of 1000 mA cm-2 is obtained at 1.57 V in 30 wt% KOH, resulting in a 94% energy efficiency. This work highlights the prospects of all-in-one membrane electrode assemblies in designing next-generation high-performance alkaline water electrolysis.
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Affiliation(s)
- Lei Wan
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Maobin Pang
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Junfa Le
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Ziang Xu
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Hangyu Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Qin Xu
- Department of Chemical Engineering, Tsinghua University, Beijing, China
| | - Baoguo Wang
- Department of Chemical Engineering, Tsinghua University, Beijing, China.
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22
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Li X, Zhang H, Lin C, Tian R, Zheng P, Hu C. Morphological Effect of Side Chain Length in Sulfonated Poly(arylene ether sulfone)s Polymer Electrolyte Membranes via Molecular Dynamics Simulation. Polymers (Basel) 2022; 14:5499. [PMID: 36559872 PMCID: PMC9782572 DOI: 10.3390/polym14245499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
With the recognition of the multiple advantages of sulfonated hydrocarbon-based polymers that possess high chemical and mechanical stability with significant low cost, we employed molecular dynamics simulation to explore the morphological effects of side chain length in sulfonated polystyrene grafted poly(arylene ether sulfone)s (SPAES) proton exchange membranes. The calculated diffusion coefficients of hydronium ions (H3O+) are in range of 0.61-1.15 × 10-7 cm2/s, smaller than that of water molecules, due to the electrical attraction between the oppositely charged sulfonate group and H3O+. The investigation into the radial distribution functions suggests that phase segregation in the SPAES membrane is more probable with longer side chains. As the hydration level of the membranes in this study is relatively low (λ = 3), longer side chains correspond to more water molecules in the amorphous cell, which provides better solvent effects for the distribution of sulfonated side chains. The coordination number of water molecules and hydronium ions around the sulfonate group increases from 1.67 to 2.40 and from 2.45 to 5.66, respectively, with the increase in the side chain length. A significant proportion of the hydronium ions appear to be in bridging configurations coordinated by multiple sulfonate groups. The microscopic conformation of the SPAES membrane is basically unaffected by temperature during the evaluated temperature range. Thus, it can be revealed that the side chain length plays a key role in the configuration of the polymer chain and would contribute to the formation of the microphase separation morphology, which profits proton transport in the hydrophilic domains.
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Affiliation(s)
- Xue Li
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Hong Zhang
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Cheng Lin
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ran Tian
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Penglun Zheng
- Civil Aircraft Fire Science and Safety Engineering Key Laboratory of Sichuan Province, Civil Aviation Flight University of China, Guanghan 618307, China
| | - Chenxing Hu
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
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23
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Gorre A, Das A, Jana T. Mixed matrix composite PEM with super proton conductivity developed from ionic liquid modified silica nanoparticle and polybenzimidazole. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2022. [DOI: 10.1080/10601325.2022.2154677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Akhil Gorre
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - Anupam Das
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - Tushar Jana
- School of Chemistry, University of Hyderabad, Hyderabad, India
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24
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Yan P, Yu Z, Chen Z, Hu J, Wang W, Gong C. Sulfonated polyether ether ketone composite proton exchange membranes incorporated with a novel hierarchical‐structure hybrid nanofiller consisting solid superacid zirconium phosphate and
CNTs. J Appl Polym Sci 2022. [DOI: 10.1002/app.53348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Pengjia Yan
- Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, School of Chemistry and Material Science Hubei Engineering University Xiaogan Hubei China
| | - Zhanghu Yu
- Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, School of Chemistry and Material Science Hubei Engineering University Xiaogan Hubei China
| | - Zhihong Chen
- Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, School of Chemistry and Material Science Hubei Engineering University Xiaogan Hubei China
- School of Physics and Electronic‐information Engineering Hubei Engineering University Xiaogan China
| | - Ji Hu
- School of Materials Science and Engineering School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology Luoyang China
| | - Wanhui Wang
- School of Materials Science and Engineering School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology Luoyang China
| | - Chunli Gong
- Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, School of Chemistry and Material Science Hubei Engineering University Xiaogan Hubei China
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25
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Zhang S, Li Y, Li X, Gu J, Shao H, Huang Q, Cui P, Liu Y, Ran J, Fu CF. Polycations inclusion to simultaneously boost permeation and selectivity of two-dimensional TaS2 membranes for acid recovery. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Zhang L, Liu Z, Yang C, García Sakai V, Tyagi M, Hong L. Conduction Mechanism in Graphene Oxide Membranes with Varied Water Content: From Proton Hopping Dominant to Ion Diffusion Dominant. ACS NANO 2022; 16:13771-13782. [PMID: 35993828 DOI: 10.1021/acsnano.2c00686] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Proton conductors, particularly hydrated solid membranes, have various applications in sensors, fuel cells, and cellular biological systems. Unraveling the intrinsic proton transfer mechanism is critical for establishing the foundation of proton conduction. Two scenarios on electrical conduction, the Grotthuss and the vehicle mechanisms, have been reported by experiments and simulations. But separating and quantifying the contributions of these two components from experiments is difficult. Here, we present the conductive behavior of a two-dimensional layered proton conductor, graphene oxide membrane (GOM), and find that proton hopping is dominant at low water content, while ion diffusion prevails with increasing water content. This change in the conduction mechanism is attributable to the layers of water molecules in GOM nanosheets. The overall conductivity is greatly improved by forming one layer of water molecules. It reaches the maximum with two layers of water molecules, resulting from creating a complete hydrogen-bond network within GOM. When more than two layers of water molecules enter the GOM nanosheets, inducing the breakage of the ordered lamellar structure, protons spread in both in-plane and out-of-plane directions inside the GOM. Our results validate the existence of two conduction mechanisms and show their distinct contributions to the overall conductivity. Furthermore, these findings provide an optimization strategy for the design of realizing the fast proton transfer in materials with water participation.
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Affiliation(s)
- Lei Zhang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhuo Liu
- Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai National Center for Applied Mathematics (SJTU Center) and MOE-LSC, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chenxing Yang
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Victoria García Sakai
- Rutherford Appleton Laboratory, ISIS Neutron and Muon Facility, Science and Technology Facilities Council, Didcot OX11 0QX, United Kingdom
| | - Madhusudan Tyagi
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Liang Hong
- Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai National Center for Applied Mathematics (SJTU Center) and MOE-LSC, Shanghai Jiao Tong University, Shanghai 200240, China
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27
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Fuel cell performance improvement via the steric effect of a hydrocarbon-based binder for cathode in proton exchange membrane fuel cells. Sci Rep 2022; 12:14001. [PMID: 35978021 PMCID: PMC9386007 DOI: 10.1038/s41598-022-18464-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/12/2022] [Indexed: 11/08/2022] Open
Abstract
In this study, a sulfonated poly(ether sulfone) having cardo-type fluorenyl groups (FL-SPES) was investigated as a cathodic binder to improve fuel cell performance via increased the oxygen diffusion in the cathode. The maximum power density achieved by using the membrane electrode assembly (MEA) prepared with FL-SPES with a low ion exchange capacity (IEC) of 1.31 meq g-1 was 520 mW cm-2, which is more than twice as high as that of BP-SPES (210 mW cm-2) having typical biphenyl groups with a similar IEC. At high IEC of 1.55 meq g-1, the power density obtained by using BP-SPES was improved to 454 mW cm-2 but remained lower than that of FL-SPES. In addition, although the IEC, swelling degree, and specific resistance were similar to each other, the gas permeability of FL-SPES was improved by approximately three times compared to that of BP-SPES. The steric structure of cardo-type FL-SPES increased the free volume between the polymer backbones, leading to an increase in gas transfer. Consequently, oxygen diffusion was promoted at the cathode, resulting in improved fuel cell performance.
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28
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Li W, Chen C, Liu X, Li X, Jiang X, Liu X, Yang J, Liu J. Continuous graphene oxide nanolayer arranged on hydrophilic modified polytetrafluoroethylene substrate to construct high performance proton exchange membranes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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29
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Duan Y, Ru C, Pang Y, Li J, Liu B, Zhao C. Crosslinked PAEK-based nanofiber reinforced Nafion membrane with ion-paired interfaces towards high-concentration DMFC. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Yu S, Qian H, Liao J, Dong J, Yu L, Liu C, Shen J. Proton blockage PVDF-co-HFP-based anion exchange membrane for sulfuric acid recovery in electrodialysis. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Selyanchyn O, Bayer T, Klotz D, Selyanchyn R, Sasaki K, Lyth SM. Cellulose Nanocrystals Crosslinked with Sulfosuccinic Acid as Sustainable Proton Exchange Membranes for Electrochemical Energy Applications. MEMBRANES 2022; 12:membranes12070658. [PMID: 35877861 PMCID: PMC9319731 DOI: 10.3390/membranes12070658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/20/2022]
Abstract
Nanocellulose is a sustainable material which holds promise for many energy-related applications. Here, nanocrystalline cellulose is used to prepare proton exchange membranes (PEMs). Normally, this nanomaterial is highly dispersible in water, preventing its use as an ionomer in many electrochemical applications. To solve this, we utilized a sulfonic acid crosslinker to simultaneously improve the mechanical robustness, water-stability, and proton conductivity (by introducing -SO3−H+ functional groups). The optimization of the proportion of crosslinker used and the crosslinking reaction time resulted in enhanced proton conductivity up to 15 mS/cm (in the fully hydrated state, at 120 °C). Considering the many advantages, we believe that nanocellulose can act as a sustainable and low-cost alternative to conventional, ecologically problematic, perfluorosulfonic acid ionomers for applications in, e. fuel cells and electrolyzers.
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Affiliation(s)
- Olena Selyanchyn
- Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan;
| | - Thomas Bayer
- Lloyd’s Register Group Limited, Queens Tower A10F. 2-3-1, Minatomirai, Nishi-ku, Yokohama 220-0012, Japan;
| | - Dino Klotz
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (D.K.); (K.S.)
| | - Roman Selyanchyn
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (D.K.); (K.S.)
- Kyushu University Platform for Inter/Transdisciplinary Energy Research (Q-PIT), 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Research Center for Negative-Emissions Technologies (K-NETs), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Correspondence: (R.S.); (S.M.L.)
| | - Kazunari Sasaki
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (D.K.); (K.S.)
- Kyushu University Platform for Inter/Transdisciplinary Energy Research (Q-PIT), 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Next-Generation Fuel Cell Research Center (NEXT-FC), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Research Center for Hydrogen Energy (HY30), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Stephen Matthew Lyth
- Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan;
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; (D.K.); (K.S.)
- Next-Generation Fuel Cell Research Center (NEXT-FC), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- International Research Center for Hydrogen Energy (HY30), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Department of Mechanical Engineering, University of Sheffield, Western Bank, Sheffield S1 3JD, UK
- Correspondence: (R.S.); (S.M.L.)
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Lu Z, Yang C, He L, Hong J, Huang C, Wu T, Wang X, Wu Z, Liu X, Miao Z, Zeng B, Xu Y, Yuan C, Dai L. Asymmetric Hydrophosphonylation of Imines to Construct Highly Stable Covalent Organic Frameworks with Efficient Intrinsic Proton Conductivity. J Am Chem Soc 2022; 144:9624-9633. [PMID: 35605024 DOI: 10.1021/jacs.2c00429] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Imine-linked covalent organic frameworks (COFs) have received widespread attention because of their structure features such as high crystallinity and tunable pores. However, the intrinsic reversibility of the imine bond leads to the poor stability of imine-linked COFs under strong acid conditions. Also, their thermal stability is significantly lower than that of many other COFs. Herein, we report for the first time that the reversible imine bonds in the skeleton of COFs can be locked through the asymmetric hydrophosphonylation reaction of phosphite. The functionalized COFs not only retain the crystallinity and porous structure but also exhibit evidently improved chemical and thermal stabilities. In addition, the phosphorous acid groups generated by acidic hydrolysis attached to the skeleton endow the COFs with good intrinsic proton conductivity. Due to the diversity of phosphite derivatives and imine-linked COFs, this work may provide an avenue for extending the COF structures and functions through the asymmetric hydrophosphonylation reaction.
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Affiliation(s)
- Zhenwu Lu
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Chunying Yang
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Liu He
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Jing Hong
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Chuhong Huang
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Tong Wu
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Xiu Wang
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Zhangfeng Wu
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Xiaohui Liu
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Zhongxi Miao
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Birong Zeng
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Yiting Xu
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Conghui Yuan
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
| | - Lizong Dai
- Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China
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33
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Oroujzadeh M, Mehdipour‐Ataei S. Evaluation of properties and performance of poly(ether sulfone ketone) membranes in proton exchange membrane fuel cells. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maryam Oroujzadeh
- Faculty of Polymer Science, Department of Polyurethane and Advanced Materials Iran Polymer and Petrochemical Institute Tehran Iran
| | - Shahram Mehdipour‐Ataei
- Faculty of Polymer Science, Department of Polyurethane and Advanced Materials Iran Polymer and Petrochemical Institute Tehran Iran
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34
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Yang M, Rong J, Xia M, Wang S, Feng Y, Ding H. Dual Proton Conducting Channels Constructed by Acid‐Base Double‐Shell Carbon Nanotubes to Boost the Proton Conductivity of SPEEK. ChemistrySelect 2022. [DOI: 10.1002/slct.202201028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mengjie Yang
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Jianxin Rong
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Minglong Xia
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Shuo Wang
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Yi Feng
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
| | - Huili Ding
- Key Laboratory for Functional Polymers of Hebei Province School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China
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35
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Mao S, Wang Y, Kang L, Liao H, Liu H. A novel proton exchange membrane derived from trisulfonated poly(arylene ether phosphine oxide) containing diphenyl ether moieties. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221098618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of novel trisulfonated phosphine oxide polymers (tsPEPO-x) with different sulfonation degrees were prepared by intermolecular polymerization of trisulfonated phosphine monomer and 4,4′-dihydroxydiphenyl ether. The properties of these membranes were investigated in detail. The results showed that these membranes, especially those with high sulfonation degree, exhibited excellent overall performance. For example, the conductivity of tsPEPO-120 membrane reaches 0.093 S cm−1 at 80°C, which is higher than that (0.087 S cm−1) of Nafion 117. At the same time, the swelling rate is almost equivalent to that (20%) of Nafion 117. Moreover, the membrane also has good oxidation resistance in Fenton’s reagent. The obtained polymers showed good properties. The trisulfonated moieties and diphenyl ether simultaneously played important roles in improving the properties of the polymer.
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Affiliation(s)
- Songli Mao
- Schcool of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Yajie Wang
- Schcool of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Liqin Kang
- Schcool of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Huiying Liao
- Schcool of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Huiping Liu
- College of Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai, China
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36
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Yu W, Zhang K, Zhang J, Liang X, Ge X, Ge Z, Wei C, Song W, Xu T, Wu L. Efficient lamellar two‐dimensional proton channels derived from dipole interactions in a polyelectrolyte membrane. AIChE J 2022. [DOI: 10.1002/aic.17731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Weisheng Yu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Kaiyu Zhang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Jianjun Zhang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Xian Liang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Xiaolin Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Zijuan Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Chengpeng Wei
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Wanjie Song
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Tongwen Xu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
| | - Liang Wu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science University of Science and Technology of China Hefei China
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37
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Nederstedt H, Jannasch P. Poly(p-terphenyl alkylene)s grafted with highly acidic sulfonated polypentafluorostyrene side chains for proton exchange membranes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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38
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Yu W, Ge Z, Zhang K, Liang X, Ge X, Wang H, Li M, Shen X, Xu Y, Wu L, Xu T. Development of a High-Performance Proton Exchange Membrane: From Structural Optimization to Quantity Production. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weisheng Yu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Zijuan Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Kaiyu Zhang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Xian Liang
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Xiaolin Ge
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Huijuan Wang
- Experimental Center of Engineering and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Ming Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Xianhe Shen
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Yan Xu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Liang Wu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
| | - Tongwen Xu
- Anhui Engineering Laboratory of Functional Membrane Materials and Technology, Collaborative Innovation Centre of Chemistry for Energy Materials, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, China
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39
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Wang X, Shi B, Yang H, Guan J, Liang X, Fan C, You X, Wang Y, Zhang Z, Wu H, Cheng T, Zhang R, Jiang Z. Assembling covalent organic framework membranes with superior ion exchange capacity. Nat Commun 2022; 13:1020. [PMID: 35197451 PMCID: PMC8866435 DOI: 10.1038/s41467-022-28643-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 01/26/2022] [Indexed: 11/24/2022] Open
Abstract
Ionic covalent organic framework membranes (iCOFMs) hold great promise in ion conduction-relevant applications because the high content and monodispersed ionic groups could afford superior ion conduction. The key to push the upper limit of ion conductivity is to maximize the ion exchange capacity (IEC). Here, we explore iCOFMs with a superhigh ion exchange capacity of 4.6 mmol g−1, using a dual-activation interfacial polymerization strategy. Fukui function is employed as a descriptor of monomer reactivity. We use Brønsted acid to activate aldehyde monomers in organic phase and Brønsted base to activate ionic amine monomers in water phase. After the dual-activation, the reaction between aldehyde monomer and amine monomer at the water-organic interface is significantly accelerated, leading to iCOFMs with high crystallinity. The resultant iCOFMs display a prominent proton conductivity up to 0.66 S cm−1, holding great promise in ion transport and ionic separation applications. Covalent organic framework-based membranes are highly tunable materials with potential use in a variety of applications. Here the authors report a dual-activation interfacial polymerization strategy to prepare ionic covalent organic framework membranes with high ion exchange capacity.
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Affiliation(s)
- Xiaoyao Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Benbing Shi
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Hao Yang
- Institute of Functional Nano&Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, China
| | - Jingyuan Guan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Xu Liang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Chunyang Fan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Xinda You
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Yanan Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China
| | - Zhe Zhang
- Institute of Functional Nano&Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China.,Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, 300072, Tianjin, China
| | - Tao Cheng
- Institute of Functional Nano&Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, China
| | - Runnan Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China. .,Zhejiang Institute of Tianjin University, 315201, Ningbo, Zhejiang, China.
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), 300072, Tianjin, China. .,Zhejiang Institute of Tianjin University, 315201, Ningbo, Zhejiang, China. .,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, 350207, Binhai New City, Fuzhou, China.
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40
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Synthesis and characterization of novel sulfonated poly(arylene ether phosphine oxide) with diphenyl ether moieties as proton exchange membranes. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-020-03527-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Duan Y, Ru C, Li J, Sun YN, Pu X, Liu B, Pang B, Zhao C. Enhancing proton conductivity and methanol resistance of SPAEK membrane by incorporating MOF with flexible alkyl sulfonic acid for DMFC. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119906] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Ahn SM, Kim TH, Yuk J, Jeong HY, Yu DM, Hong SK, Hong YT, Lee JC, Kim TH. Perfluorocyclobutyl-containing multiblock copolymers to induce enhanced hydrophilic/hydrophobic phase separation and high proton conductivity at low humidity. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kang HH, Lee DH. Improving the Durability and Performance of Sulfonated Poly(arylene ether)s by Introducing 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide Structure for Fuel Cell Application. ACS OMEGA 2021; 6:35315-35324. [PMID: 34984263 PMCID: PMC8717375 DOI: 10.1021/acsomega.1c04205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Polymer electrolyte membranes in which the hydrophilic and hydrophobic domains phase separate exhibit improved properties and stability. Such a phase separation of hydrophilic and hydrophobic domains can be achieved by polymerizing a 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide-bisphenol A (DOPO-BPA) and 1,4-bis(4-fluorobenzoyl)benzene (1,4-FBB) monomer. In this work, sulfonated polymer membranes with various degrees of sulfonation (DS) were prepared and their physicochemical and electrochemical properties were studied. In addition, the effect of molecular structure on the durability of the copolymers was investigated. The sulfonated copolymers were characterized by Fourier-transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy. Then, sulfonated membranes were prepared using these copolymers by the solvent casting method, and their morphologies were investigated by atomic force microscopy. The effect of DS on the thermal, mechanical, and oxidative stabilities, water uptake behavior, and ion-exchange capacity of the membranes was determined. The results showed that compared with the commercially available Nafion 212 polymer electrolyte membrane, the electrolyte membrane based on DOPO-BPA and 1,4-FBB exhibited a lower water uptake and excellent dimensional stability despite having a relatively high ion-exchange capacity. The low water uptake is an important characteristic that ensures the stability of the polymer electrolyte membrane in fuel cell applications.
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Singh S, Taketsugu T, Singh RK. Hydration, Prediction of the p K a, and Infrared Spectroscopic Study of Sulfonated Polybenzophenone (SPK) Block-Copolymer Hydrocarbon Membranes and Comparisons with Nafion. ACS OMEGA 2021; 6:32739-32748. [PMID: 34901622 PMCID: PMC8655912 DOI: 10.1021/acsomega.1c04484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
We used long-range-corrected density functional theory to investigate the hydration, pK a values, and harmonic vibrational spectroscopy of sulfonated polybenzophenone (SPK) block-copolymer hydrocarbon membranes to ascertain the reasons why this gives comparable or higher proton conductivities against Nafion over a wide range of humidity. It was found that a minimum of three water molecules are required for proton dissociation in both membranes. From natural population analysis, it was noticed that the proton dissociation of SPK membranes is nearly comparable to Nafion at relatively low water content. Next, we explored the applicability of the appropriate treatment for pK a and proton's energy with a benchmark set (AKB) scheme to compute the pK a values for these membranes. These results indicate that the proton dissociative abilities of sulfonic acid groups of the SPK membrane are higher than those of Nafion. This could be one of the reasons for the SPK membrane to show higher proton conductivities at high relative humidity. Furthermore, the effect of hydration on the proton conductivity of membranes illustrates that asymmetric stretching of the SO3 - mode was in agreement with Nafion ones but opposite trends were found in the case of symmetric stretching of the SO3 - mode upon hydration.
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Affiliation(s)
- Soni Singh
- University
Department of Chemistry, Jai Prakash University, Chapra 841301, Bihar, India
| | - Tetsuya Taketsugu
- Department
of Chemistry, Faculty of Science, Hokkaido
University, Sapporo 060-0810, Japan
- Institute
for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
| | - Raman K. Singh
- Department
of Chemistry, Jagdam College, Jai Prakash
University, Chapra 841301, Bihar, India
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Wang J, Lin J, Zhou Z, Zhang Y, Yang Z, Wu W. Manipulating carrier arrangement in lamellar membrane channels towards highly enhanced proton conduction. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Long Z, Miyatake K. ePTFE reinforced, sulfonated aromatic polymer membranes enable durable, high-temperature operable PEMFCs. iScience 2021; 24:102962. [PMID: 34458706 PMCID: PMC8379343 DOI: 10.1016/j.isci.2021.102962] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/13/2021] [Accepted: 08/03/2021] [Indexed: 11/12/2022] Open
Abstract
Sulfonated polyphenylene (SPP)-based ionomers have been developed for electrochemical applications in recent years due to their inherent thermal and chemical stability. However, the difficult synthesis, limited solubility, and rigid backbone obstructs their progress. Herein, a new monomer, 3,3″-dichloro-2',3',5',6'-tetrafluoro-1,1':4',1″-terphenyl (TP-f) with high polymerization reactivity was designed and polymerized with sulfonated phenylene monomer to prepare SPP-based ionomers (SPP-TP-f) with high ion exchange capacity up to 4.5 mequiv g-1. The resulting flexible membranes were more proton conductive than Nafion (state-of-the-art proton exchange membrane) even at 120°C and 20% RH. Unlike typical SPP ionomers, SPP-TP-f 5.1 was soluble in ethanol and thus, could be reinforced with double expanded polytetrafluorethylene thin layers to obtain SPP-TP-f 5.1/DPTFE membrane. SPP-TP-f 5.1/DPTFE showed superior fuel cell performance to that of Nafion, in particular, at low humidity (30% RH, > 100°C) and reasonable durability under the severe accelerated conditions combining OCV hold and humidity cycling tests.
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Affiliation(s)
- Zhi Long
- Clean Energy Research Center, University of Yamanashi, Yamanashi 400-8510, Japan
- Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
| | - Kenji Miyatake
- Clean Energy Research Center, University of Yamanashi, Yamanashi 400-8510, Japan
- Fuel Cell Nanomaterials Center, University of Yamanashi, Yamanashi 400-8510, Japan
- Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan
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Miyake J, Watanabe T, Shintani H, Sugawara Y, Uchida M, Miyatake K. Reinforced Polyphenylene Ionomer Membranes Exhibiting High Fuel Cell Performance and Mechanical Durability. ACS MATERIALS AU 2021; 1:81-88. [PMID: 36855620 PMCID: PMC9888648 DOI: 10.1021/acsmaterialsau.1c00002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report on the preparation of reinforced membranes (SPP-QP-PE, where SPP stands for sulfonated polyphenylene), composed of an in-house proton-conductive polyphenylene ionomer (SPP-QP) and a flexible porous polyethylene (PE) mechanical support layer. By applying the push coating method, dense, uniform, transparent, and thin SPP-QP-PE membranes were obtainable. The use of SPP-QP with higher ion exchange capacity induced very high proton conductivity of SPP-QP-PE, leading to high fuel cell performance even at low humidified conditions (e.g., at 80 °C and 30% relative humidity), which had not been attainable with the existing reinforced aromatic ionomer membranes. The flexible porous PE substrate improved the mechanical toughness of the membranes; the elongation at break increased by a factor of 7.1 for SPP-QP-PE compared to that with the bare SPP-QP membrane, leading to mechanical durability at least 3850 wet-dry cycles under practical fuel cell operating conditions (the United States Department of Energy protocol). Overall, the reinforced aromatic ionomer membranes, SPP-QP-PE with balanced proton conductivity, mechanical toughness, and gas impermeability, functioned well in fuel cells with high performance and durability.
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Affiliation(s)
- Junpei Miyake
- Clean
Energy Research Center, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Takayuki Watanabe
- Interdisciplinary
Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Yamanashi 400-8510, Japan
| | - Haruhiko Shintani
- Technology
Division, Panasonic Corporation, Yagumo-naka-machi 3-1-1, Moriguchi 570-8501, Japan
| | - Yasushi Sugawara
- Appliances
Company, Panasonic Corporation, Noji-higashi 2-3-1-1, Kusatsu 525-8520, Japan
| | - Makoto Uchida
- Fuel
Cell Nanomaterials Center, University of
Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Kenji Miyatake
- Clean
Energy Research Center, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
- Fuel
Cell Nanomaterials Center, University of
Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
- Department
of Applied Chemistry, and Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
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Li J, Tian X, Xia C, Duan Y, Sun YN, Liu B, Wu L, Ru C, Zhang ST, Zhao C. Construction of Proton Transport Highways Induced by Polarity-Driving in Proton Exchange Membranes to Enhance the Performance of Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40673-40684. [PMID: 34410701 DOI: 10.1021/acsami.1c11715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The approach to constructing proton transport channels via direct adjustments, including hydrophilia and analytical acid concentration in hydrophilic domains, has been proved to be circumscribed when encouraging the flatter hydrophilic-hydrophobic microphase separation structures and reducing conductivity activation energy. Here, we propose a constructive solution by regulating the polarity of hydrophobic domains, which indirectly varies the aggregation and connection of hydrophilic ion clusters during membrane formation, enabling orderly self-assembly and homogeneously distributed microphase structures. Accordingly, a series of comb-shaped polymers were synthesized with diversified optimization, and more uniformly distributed ion cluster lattices were subsequently observed using high-resolution transmission electron microscopy. Simultaneously, combining with density functional theory calculations, we analyzed the mechanism of membrane degradations caused by hydroxyl radical attacks. Experimental results demonstrated that, facilitated by proper molecule polarity, beneficial changes of bond dissociation energy could extend the membrane lifetime more than the protection from side chains near ether bonds, which were deemed to reduce the probability of attacks by the steric effect. With the optimal strategy chosen among various trials, the maximum power density of direct methanol fuel cell and H2/air proton exchange membrane fuel cell was enhanced to 95 and 485 mW cm-2, respectively.
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Affiliation(s)
- Jialin Li
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Xuzhou Tian
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Chunlei Xia
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Yuting Duan
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Yi-Nan Sun
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Binghui Liu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Liming Wu
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Chunyu Ru
- Powertrain Department, General Institute of FAW, Changchun 130012, P. R. China
| | - Shi-Tong Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Chengji Zhao
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Key Laboratory of Advanced Batteries Physics and Technology (Ministry of Education), Jilin University, Changchun 130012, P. R. China
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Yu W, Zhang J, Liang X, Ge X, Wei C, Ge Z, Zhang K, Li G, Song W, Shehzad MA, Wu L, Xu T. Anion exchange membranes with fast ion transport channels driven by cation-dipole interactions for alkaline fuel cells. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119404] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Zhang J, Zhu W, Huang T, Zheng C, Pei Y, Shen G, Nie Z, Xiao D, Yin Y, Guiver MD. Recent Insights on Catalyst Layers for Anion Exchange Membrane Fuel Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100284. [PMID: 34032021 PMCID: PMC8336519 DOI: 10.1002/advs.202100284] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/03/2021] [Indexed: 05/29/2023]
Abstract
Anion exchange membrane fuel cells (AEMFCs) performance have significantly improved in the last decade (>1 W cm-2 ), and is now comparable with that of proton exchange membrane fuel cells (PEMFCs). At high current densities, issues in the catalyst layer (CL, composed of catalyst and ionomer), like oxygen transfer, water balance, and microstructural evolution, play important roles in the performance. In addition, CLs for AEMFCs have different requirements than for PEMFCs, such as chemical/physical stability, reaction mechanism, and mass transfer, because of different conductive media and pH environment. The anion exchange ionomer (AEI), which is the soluble or dispersed analogue of the anion exchange membrane (AEM), is required for hydroxide transport in the CL and is normally handled separately with the electrocatalyst during the electrode fabrication process. The importance of the AEI-catalyst interface in maximizing the utilization of electrocatalyst and fuel/oxygen transfer process must be carefully investigated. This review briefly covers new concepts in the complex AEMFC catalyst layer, before a detailed discussion on advances in CLs based on the design of AEIs and electrocatalysts. The importance of the structure-function relationship is highlighted with the aim of directing the further development of CLs for high-performance AEMFC.
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Affiliation(s)
- Junfeng Zhang
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Weikang Zhu
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Tong Huang
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Chenyang Zheng
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Yabiao Pei
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Guoqiang Shen
- Institute of Science and TechnologyChina Three Gorges CorporationBeijing100038P. R. China
| | - Zixi Nie
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Di Xiao
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Yan Yin
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
| | - Michael D. Guiver
- State Key Laboratory of EnginesSchool of Mechanical EngineeringTianjin UniversityTianjin300072P. R. China
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