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Li P, He B, Li X, Lin Y, Tang S. Chitosan-Linked Dual-Sulfonate COF Nanosheet Proton Exchange Membrane with High Robustness and Conductivity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302060. [PMID: 37096933 DOI: 10.1002/smll.202302060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/29/2023] [Indexed: 05/03/2023]
Abstract
2D materials that can provide long-range ordered channels in thin-film form are highly desirable for proton exchange membranes (PEMs). Covalent organic framework nanosheets (CONs) are promising 2D materials possessing intrinsic porosity and high processability. However, the potential of CONs in PEMs is limited by loose sheet stacking and interfacial grain boundary, which lead to unsatisfied mechanical property and discontinuous conduction pathway. Herein, chitosan (CS), a natural polymer with rich NH2 groups, is designed as the linker of dual-sulfonate CONs (CON-2(SO3 H)) to obtain CON-2(SO3 H)-based membrane. Ultrathin CON-2(SO3 H) with high crystallinity and large lateral size is synthesized at water-octanoic acid interface. The high flexibility of CS chains and their electrostatic interactions with SO3 H groups of CON-2(SO3 H) enable effective connection of CON-2(SO3 H), thus endowing membrane dense structure and exceptional stability. The stacked CON-2(SO3 H) constructs regular hydrophilic nanochannels containing high-density SO3 H groups, and the electrostatic interactions between CON-2(SO3 H) and CS form interfacial acid-base pairs transfer channels. Consequently, CON-2(SO3 H)@CS membrane simultaneously achieves superior proton conductivity of 353 mS cm-1 (under 80 °C hydrated condition) and tensile strength of 95 MPa. This work highlights the advantages of proton-conducting porous CON-2(SO3 H) in advanced PEMs and paves a way in fabricating robust CON-based membranes for various applications.
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Affiliation(s)
- Ping Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300354, P. R. China
| | - Bo He
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300354, P. R. China
| | - Xuan Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300354, P. R. China
| | - Yunfei Lin
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300354, P. R. China
| | - Shaokun Tang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300354, P. R. China
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2
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Tertiary amino-modified GO/Nafion composite membrane with enhanced ion selectivity for vanadium redox flow batteries. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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Liu Y, Liu X, Lv Z, Liu R, Li L, Wang J, Yang W, Jiang X, Feng X, Wang B. Tuning the Spin State of the Iron Center by Bridge-Bonded Fe-O-Ti Ligands for Enhanced Oxygen Reduction. Angew Chem Int Ed Engl 2022; 61:e202117617. [PMID: 35247217 DOI: 10.1002/anie.202117617] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Indexed: 12/18/2022]
Abstract
Exploring functional substrates and precisely regulating the electronic structures of atomic metal active species with moderate spin state are of great importance yet remain challenging. Hereon, we provide an axial Fe-O-Ti ligand regulated spin-state transition strategy to improve the oxygen reduction reaction (ORR) activity of Fe centers. Theoretical calculations indicate that Fe-O-Ti ligands in FeN3 O-O-Ti can induce a low-to-medium spin-state transition and optimize O2 adsorption by FeN3 O. As a proof-of-concept, the oriented catalyst was prepared from atomic-Fe-doped polymer-like quantum dots and ultrathin o-terminated MXene. The optimal catalyst exhibits an intrinsic activity that is almost 5 times higher than the control sample (without axial Fe-O-Ti ligands). It also delivers a superior performance in Zn-air batteries and H2 /O2 anion exchange membrane fuel cells in a wide-temperature range.
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Affiliation(s)
- Yarong Liu
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Xiangjian Liu
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Zunhang Lv
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Rui Liu
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Liuhua Li
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Jinming Wang
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Wenxiu Yang
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Xin Jiang
- Orthopaedics Department. China-Japan Friendship Hospital, Yinghua street, Chaoyang district, Beijing, China
| | - Xiao Feng
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
| | - Bo Wang
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, South Street, Zhongguancun, Haidian District, Beijing, 100081, China
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Zhong F, Zeng Z, Liu Y, Hou R, Nie X, Jia Y, Xi J, Liu H, Niu W, Zhang F. Modification of sulfonated poly (etherether ketone) composite polymer electrolyte membranes with 2D molybdenum disulfide nanosheet-coated carbon nanotubes for direct methanol fuel cell application. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124839] [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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5
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Liu Y, Liu X, Lv Z, Liu R, Li L, Wang J, Yang W, Jiang X, Feng X, Wang B. Tuning Spin State of Fe Center by Bridge Bonded Fe‐O‐Ti Ligands for Enhanced Oxygen Reduction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117617] [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)
- Yarong Liu
- Beijing Institute of Technology School of Chemistry CHINA
| | - Xiangjian Liu
- Beijing Institute of Technology School of Chemistry CHINA
| | - Zunhang Lv
- Beijing Institute of Technology School of Chemistry CHINA
| | - Rui Liu
- Beijing Institute of Technology School of Chemistry CHINA
| | - Liuhua Li
- Beijing Institute of Technology School of Chemistry CHINA
| | - Jinming Wang
- Beijing Institute of Technology School of Chemistry CHINA
| | - Wenxiu Yang
- Beijing Institute of Technology School of Chemistry CHINA
| | - Xin Jiang
- China-Japan Friendship Hospital Department of orthopedic Surgery CHINA
| | - Xiao Feng
- Beijing Institute of Technology School of Chemistry CHINA
| | - Bo Wang
- Beijing Institute of Technology Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials 5 S. Zhongguancun Ave,Central Building Rm. 108 100081 Beijing CHINA
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6
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7
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Cai YY, Zhang QG, Zhu AM, Liu QL. Two-dimensional metal-organic framework-graphene oxide hybrid nanocomposite proton exchange membranes with enhanced proton conduction. J Colloid Interface Sci 2021; 594:593-603. [PMID: 33780764 DOI: 10.1016/j.jcis.2021.03.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/05/2021] [Accepted: 03/14/2021] [Indexed: 10/21/2022]
Abstract
A novel two-dimensional (2D) zeolitic imidazolate framework-graphene oxide hybrid nanocomposite (ZIF-L@GO) is designed as an inorganic filler in sulfonated poly(ether ether ketone) (SPEEK). ZIF-L with unique leaf-like morphology is grown in-situ on the GO sheet in aqueous media at room temperature. The terminal imidazole linker in ZIF-L@GO and the -SO3H in SPEEK can form acid-base pairs in the membrane interface to produce low energy proton conduction highway. Benefiting from the unique structural advantage, the hybrid SP-ZIF-L@GO membranes displayed promoted physicochemical and electrochemical performances over the pure SPEEK. The SP-ZIF-L@GO-5 achieved a proton conductivity of 0.265 and 0.0364 S cm-1 at 70 °C-100% RH and 90 °C-40% RH, 1.76- and 6.24-fold higher than pure SPEEK, respectively. Meanwhile, a single cell based on SP-ZIF-L@GO-5 had an output power up to 652.82 mW cm-2 at 60 °C, 1.45 times higher than the pure SPEEK. In addition, the durability test was performed by holding open circuit voltage (OCV) for 24 h. The SP-ZIF-L@GO-5 provided better long-term stability than the pure SPEEK. These superior performance suggests a promising application in PEMFC.
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Affiliation(s)
- Yuan Yuan Cai
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Qiu Gen Zhang
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Ai Mei Zhu
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Qing Lin Liu
- Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
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8
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Peng Q, Li Y, Qiu M, Shi B, He X, Fan C, Mao X, Wu H, Jiang Z. Enhancing Proton Conductivity of Sulfonated Poly(ether ether ketone)-Based Membranes by Incorporating Phosphotungstic-Acid-Coupled Graphene Oxide. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00003] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Quan Peng
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yan Li
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Ming Qiu
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Benbing Shi
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xueyi He
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Chunyang Fan
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xunli Mao
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hong Wu
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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9
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Adenosine triphosphate@graphene oxide proton channels for proton exchange membranes constructed via electrostatic layer-by-layer deposition. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118880] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Dou H, Xu M, Wang B, Zhang Z, Luo D, Shi B, Wen G, Mousavi M, Yu A, Bai Z, Jiang Z, Chen Z. Analogous Mixed Matrix Membranes with Self‐Assembled Interface Pathways. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Haozhen Dou
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Mi Xu
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Baoyu Wang
- School of Chemical Engineering and Food Science Zhengzhou University of Technology Zhengzhou 450044 China
| | - Zhen Zhang
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Dan Luo
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Benbing Shi
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Guobin Wen
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Mahboubeh Mousavi
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Aiping Yu
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Zhengyu Bai
- School of Chemistry and Chemical Engineering Key Laboratory of Green Chemical Media and Reactions Henan Normal University Xinxiang 453007 China
| | - Zhongyi Jiang
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Zhongwei Chen
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
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11
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Dou H, Xu M, Wang B, Zhang Z, Luo D, Shi B, Wen G, Mousavi M, Yu A, Bai Z, Jiang Z, Chen Z. Analogous Mixed Matrix Membranes with Self‐Assembled Interface Pathways. Angew Chem Int Ed Engl 2021; 60:5864-5870. [DOI: 10.1002/anie.202014893] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Haozhen Dou
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Mi Xu
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Baoyu Wang
- School of Chemical Engineering and Food Science Zhengzhou University of Technology Zhengzhou 450044 China
| | - Zhen Zhang
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Dan Luo
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Benbing Shi
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Guobin Wen
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Mahboubeh Mousavi
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Aiping Yu
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
| | - Zhengyu Bai
- School of Chemistry and Chemical Engineering Key Laboratory of Green Chemical Media and Reactions Henan Normal University Xinxiang 453007 China
| | - Zhongyi Jiang
- School of Chemical Engineering and Technology Collaborative Innovation Centre of Chemical Science and Engineering Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University Tianjin 300350 China
| | - Zhongwei Chen
- Department of Chemical Engineering University of Waterloo 200 University Ave. W Waterloo Ontario N2L 3G1 Canada
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12
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Du J, Zhang F, Liang X, Qu F. Influence of chemical composition on the proton conductivity of microporous organic polymers entrapped in nitrilotrimethylphosphonic acid. NEW J CHEM 2021. [DOI: 10.1039/d1nj02385c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The construction of acid–base interactions is critical for developing proton-conducting COF materials with high loading and stable electrolytes, which is influenced by the chemical composition of conductors.
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Affiliation(s)
- Jiarui Du
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, P. R. China
| | - Feng Zhang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, P. R. China
| | - Xiaoqiang Liang
- College of Environmental and Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, P. R. China
| | - Fengyu Qu
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province and College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, P. R. China
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13
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Jheng LC, Rosidah AA, Hsu SLC, Ho KS, Pan CJ, Cheng CW. Nanocomposite membranes of polybenzimidazole and amine-functionalized carbon nanofibers for high temperature proton exchange membrane fuel cells. RSC Adv 2021; 11:9964-9976. [PMID: 35423528 PMCID: PMC8695395 DOI: 10.1039/d0ra09972d] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/03/2021] [Indexed: 12/17/2022] Open
Abstract
Carbon nanofibers functionalized with aminobenzoyl groups (CNF–aminobenzoyl) were prepared via direct Friedel–Crafts acylation in polyphosphoric acid. The functionalization of CNFs was characterized using XPS, FTIR, TGA, and Raman analyses. Hexafluoroisopropylidene-containing polybenzimidazole (6FPBI) composite membranes containing pristine CNFs or CNF–aminobenzoyl were prepared using solvent-assisted dispersion and solvent-casting methods. In this work, the influence of the incorporation of functionalized CNFs on several physicochemical properties of the 6FPBI nanocomposite membranes, including their thermal stability, mechanical strength, and acid doping level, was studied. The results showed that CNF–aminobenzoyl provided better mechanical reinforcement for the nanocomposite membrane, compared to pristine CNF. The SEM observation confirmed the good compatibility between the CNF–aminobenzoyl fillers and the 6FPBI matrix. For the 0.3 wt% CNF–aminobenzoyl/6FPBI composite membrane, the tensile stress was increased by 12% to be 78.9 MPa (as compared to the 6FPBI membrane), the acid doping level was improved to 12.0, and the proton conductivity at 160 °C was measured above 0.2 S cm−1. Furthermore, the fuel cell performance of the membrane electrolyte assembly (MEA) for each nanocomposite membrane was evaluated. The maximum power density at 160 °C was found up to 461 mW cm−2 for the MEA based on the 0.3 wt% CNF–aminobenzoyl/6FPBI composite membrane. Carbon nanofibers functionalized with aminobenzoyl groups (CNF–aminobenzoyl) were prepared via direct Friedel–Crafts acylation in polyphosphoric acid.![]()
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Affiliation(s)
- Li-Cheng Jheng
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Science and Technology
- Kaohsiung
- Republic of China
| | - Afira Ainur Rosidah
- Department of Materials Science and Engineering
- National Cheng-Kung University
- Tainan
- Republic of China
| | - Steve Lien-Chung Hsu
- Department of Materials Science and Engineering
- National Cheng-Kung University
- Tainan
- Republic of China
| | - Ko-Shan Ho
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Science and Technology
- Kaohsiung
- Republic of China
| | - Chun-Jern Pan
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Science and Technology
- Kaohsiung
- Republic of China
| | - Cheng-Wei Cheng
- Department of Materials Science and Engineering
- National Cheng-Kung University
- Tainan
- Republic of China
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14
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Zhang S, Lu Y, Sun X, Li Z, Dang T, Liu S. Proton transfer in polyamine-P 2Mo 5 model adducts: exploring the effect of polyamine cations on their proton conductivity. Dalton Trans 2020; 49:17301-17309. [PMID: 33205793 DOI: 10.1039/d0dt03446k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Constructing acid-base pairs is one of the efficient strategies for the design of proton conductors with high conductivity, due to the ultrafast proton-hopping with a low energy barrier between a proton donor (acid group) and an acceptor (base group). In this study, an acid-base adduct polyamine-P2Mo5 model system was established, including adducts [C6N4H22][H2P2Mo5O23]·H2O (P2Mo5-TETA), [C4N3H16]2[P2Mo5O23]·H2O (P2Mo5-DETA), and [C2N2H10]2[H2P2Mo5O23] (P2Mo5-EN), (TETA = triethylenetetramine, DETA = diethylenetriamine, EN = ethanediamine). Proton conductivity analyses showed that adduct P2Mo5-EN exhibited the highest proton conductivity 1.13 × 10-2 S cm-1 at 65 °C and 95% RH, which was one and three orders of magnitude greater than those of P2Mo5-DETA and P2Mo5-TETA under the same conditions. Ea values of all three adducts are lower than 0.4 eV, which indicates that their proton transfer is attributed to the Grotthuss mechanism. Combined with visual structure analysis, the proton transport pathways of three adducts are highlighted. Moreover, we use this model system to discuss in detail the effect of pKa, proton density and size of polyamine molecules on the proton conductivity of organic amine-POM adducts.
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Affiliation(s)
- Shan Zhang
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, College of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China.
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15
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Friedel-Crafts self-crosslinking of sulfonated poly(etheretherketone) composite proton exchange membrane doped with phosphotungstic acid and carbon-based nanomaterials for fuel cell applications. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118381] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Han J, Lee H, Kim J, Kim S, Kim H, Kim E, Sung YE, Kim K, Lee JC. Sulfonated poly(arylene ether sulfone) composite membrane having sulfonated polytriazole grafted graphene oxide for high-performance proton exchange membrane fuel cells. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118428] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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Nanofiber composite membrane using quantum dot hybridized SPEEK nanofiber for efficient through-plane proton conduction. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118198] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Liu XT, Lin T, Zhang CX, Wang QL. A phosphonate coordination polymer with highly sensitive detection of ascorbic acid and the proton conductivity of its polymer composites. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114347] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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