Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane
As a traditional high-temperature proton exchange membrane (HT-PEM), phosphoric acid (PA)-doped polybenzimidazole (PBI) is often subject to severe mechanical strength deterioration owing to the “plasticizing effect” of a large amount of PA. In order to address this issue, we fabricated the HT-PEMs w...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/5/773 |
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| author | Erli Qu Junqiao Jiang Min Xiao Dongmei Han Sheng Huang Zhiheng Huang Shuanjin Wang Yuezhong Meng |
| author_facet | Erli Qu Junqiao Jiang Min Xiao Dongmei Han Sheng Huang Zhiheng Huang Shuanjin Wang Yuezhong Meng |
| author_sort | Erli Qu |
| collection | DOAJ |
| description | As a traditional high-temperature proton exchange membrane (HT-PEM), phosphoric acid (PA)-doped polybenzimidazole (PBI) is often subject to severe mechanical strength deterioration owing to the “plasticizing effect” of a large amount of PA. In order to address this issue, we fabricated the HT-PEMs with a crosslinked network of poly (arylene ether ketone) to confine polybenzimidazole in semi-interpenetration network using self-synthesized amino-terminated PBI (PBI-4NH<sub>2</sub>) as a crosslinker. Compared with the pristine linear poly [2,2′-(p-oxdiphenylene)-5,5′-benzimidazole] (OPBI) membrane, the designed HT-PEMs (semi-IPN/<i>x</i>PBI), in the semi-IPN means that the membranes with a semi-interpenetration structure and <i>x</i> represent the combined weight percentage of PBI-4NH<sub>2</sub> and OPBI. In addition, they also demonstrate an enhanced anti-oxidative stability and superior mechanical properties without the sacrifice of conductivity. The semi-IPN/70PBI exhibits a higher proton conductivity than OPBI at temperatures ranging from 80 to 180 °C. The HT-PEMFC with semi-IPN/70PBI exhibits excellent H<sub>2</sub>/O<sub>2</sub> single cell performance with a power density of 660 mW cm<sup>−2</sup> at 160 °C with flow rates of 250 and 500 mL min<sup>−1</sup> for dry H<sub>2</sub> and O<sub>2</sub> at a backpressure of 0.03 MPa, which is 18% higher than that of OPBI (561 mW cm<sup>−2</sup>) under the same test conditions. The results indicate that the introduction of PBI containing crosslinked networks is a promising approach to improve the comprehensive performance of HT-PEMs. |
| first_indexed | 2024-03-09T20:27:55Z |
| format | Article |
| id | doaj.art-2036956c40024a2394085e74e7d7f04b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T20:27:55Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2036956c40024a2394085e74e7d7f04b2023-11-23T23:29:59ZengMDPI AGNanomaterials2079-49912022-02-0112577310.3390/nano12050773Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange MembraneErli Qu0Junqiao Jiang1Min Xiao2Dongmei Han3Sheng Huang4Zhiheng Huang5Shuanjin Wang6Yuezhong Meng7The Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaThe Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province, State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaAs a traditional high-temperature proton exchange membrane (HT-PEM), phosphoric acid (PA)-doped polybenzimidazole (PBI) is often subject to severe mechanical strength deterioration owing to the “plasticizing effect” of a large amount of PA. In order to address this issue, we fabricated the HT-PEMs with a crosslinked network of poly (arylene ether ketone) to confine polybenzimidazole in semi-interpenetration network using self-synthesized amino-terminated PBI (PBI-4NH<sub>2</sub>) as a crosslinker. Compared with the pristine linear poly [2,2′-(p-oxdiphenylene)-5,5′-benzimidazole] (OPBI) membrane, the designed HT-PEMs (semi-IPN/<i>x</i>PBI), in the semi-IPN means that the membranes with a semi-interpenetration structure and <i>x</i> represent the combined weight percentage of PBI-4NH<sub>2</sub> and OPBI. In addition, they also demonstrate an enhanced anti-oxidative stability and superior mechanical properties without the sacrifice of conductivity. The semi-IPN/70PBI exhibits a higher proton conductivity than OPBI at temperatures ranging from 80 to 180 °C. The HT-PEMFC with semi-IPN/70PBI exhibits excellent H<sub>2</sub>/O<sub>2</sub> single cell performance with a power density of 660 mW cm<sup>−2</sup> at 160 °C with flow rates of 250 and 500 mL min<sup>−1</sup> for dry H<sub>2</sub> and O<sub>2</sub> at a backpressure of 0.03 MPa, which is 18% higher than that of OPBI (561 mW cm<sup>−2</sup>) under the same test conditions. The results indicate that the introduction of PBI containing crosslinked networks is a promising approach to improve the comprehensive performance of HT-PEMs.https://www.mdpi.com/2079-4991/12/5/773high-temperature proton exchange membranesemi-interpenetration networkphosphoric acidpoly [2,2′-(p-oxdiphenylene)-5,5′-benzimidazole] |
| spellingShingle | Erli Qu Junqiao Jiang Min Xiao Dongmei Han Sheng Huang Zhiheng Huang Shuanjin Wang Yuezhong Meng Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane Nanomaterials high-temperature proton exchange membrane semi-interpenetration network phosphoric acid poly [2,2′-(p-oxdiphenylene)-5,5′-benzimidazole] |
| title | Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane |
| title_full | Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane |
| title_fullStr | Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane |
| title_full_unstemmed | Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane |
| title_short | Polybenzimidazole Confined in Semi-Interpenetrating Networks of Crosslinked Poly (Arylene Ether Ketone) for High Temperature Proton Exchange Membrane |
| title_sort | polybenzimidazole confined in semi interpenetrating networks of crosslinked poly arylene ether ketone for high temperature proton exchange membrane |
| topic | high-temperature proton exchange membrane semi-interpenetration network phosphoric acid poly [2,2′-(p-oxdiphenylene)-5,5′-benzimidazole] |
| url | https://www.mdpi.com/2079-4991/12/5/773 |
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