Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride
In this work, proton conductivity, morphology and mechanical properties of (1–x)CsH2PO4–xF-42 (x=0.05–0.3, weight ratio) membranes were investigated for the first time. Thin flexible membranes for x≥0.15 with the uniform distribution of the components were obtained by a tape casting method. Mechanic...
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| Language: | English |
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Ural Federal University
2022-07-01
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| Series: | Chimica Techno Acta |
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| Online Access: | https://chimicatechnoacta.ru/article/view/6026 |
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| author | Irina N. Bagryantseva Yuri E. Kungurtsev Valentina G. Ponomareva |
| author_facet | Irina N. Bagryantseva Yuri E. Kungurtsev Valentina G. Ponomareva |
| author_sort | Irina N. Bagryantseva |
| collection | DOAJ |
| description | In this work, proton conductivity, morphology and mechanical properties of (1–x)CsH2PO4–xF-42 (x=0.05–0.3, weight ratio) membranes were investigated for the first time. Thin flexible membranes for x≥0.15 with the uniform distribution of the components were obtained by a tape casting method. Mechanical properties of the membranes were measured by Vickers microhardness tests for a low polymer content (x˂0.15), also the tensile strength for membranes with high polymer content x=0.2–0.3 were evaluated. Proton conductivity of the (1–x)CsH2PO4–xpF-42 composite polymer electrolytes decreases monotonically with increasing x due to the effect of a «conductor-insulator» percolation. The combination of conductivity, mechanical strength and hydrophobic properties of (1–x)CsH2PO4–xF-42 makes certain compositions of proton-conducting membranes (x~0.2–0.25) promising for their use in intermediate-temperature fuel cells, despite decreased conductivity. |
| format | Article |
| id | doaj-art-b83717f72a1f4953841b151aa72daaa9 |
| institution | OA Journals |
| issn | 2411-1414 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Ural Federal University |
| record_format | Article |
| series | Chimica Techno Acta |
| spelling | doaj-art-b83717f72a1f4953841b151aa72daaa92025-08-20T02:19:10ZengUral Federal UniversityChimica Techno Acta2411-14142022-07-019310.15826/chimtech.2022.9.3.034507Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluorideIrina N. Bagryantseva0Yuri E. Kungurtsev1Valentina G. Ponomareva2Institute of Solid State Chemistry and Mechanochemistry SB RASInstitute of Solid State Chemistry and Mechanochemistry SB RAS; Novosibirsk State UniversityInstitute of Solid State Chemistry and Mechanochemistry SB RASIn this work, proton conductivity, morphology and mechanical properties of (1–x)CsH2PO4–xF-42 (x=0.05–0.3, weight ratio) membranes were investigated for the first time. Thin flexible membranes for x≥0.15 with the uniform distribution of the components were obtained by a tape casting method. Mechanical properties of the membranes were measured by Vickers microhardness tests for a low polymer content (x˂0.15), also the tensile strength for membranes with high polymer content x=0.2–0.3 were evaluated. Proton conductivity of the (1–x)CsH2PO4–xpF-42 composite polymer electrolytes decreases monotonically with increasing x due to the effect of a «conductor-insulator» percolation. The combination of conductivity, mechanical strength and hydrophobic properties of (1–x)CsH2PO4–xF-42 makes certain compositions of proton-conducting membranes (x~0.2–0.25) promising for their use in intermediate-temperature fuel cells, despite decreased conductivity.https://chimicatechnoacta.ru/article/view/6026proton conductivitycesium dihydrogen phosphatefluoropolymerp(vdf/tfe)tape casting |
| spellingShingle | Irina N. Bagryantseva Yuri E. Kungurtsev Valentina G. Ponomareva Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride Chimica Techno Acta proton conductivity cesium dihydrogen phosphate fluoropolymer p(vdf/tfe) tape casting |
| title | Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| title_full | Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| title_fullStr | Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| title_full_unstemmed | Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| title_short | Proton-conducting membranes based on CsH2PO4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| title_sort | proton conducting membranes based on csh2po4 and copolymer of tetrafluoroethylene with vinylidene fluoride |
| topic | proton conductivity cesium dihydrogen phosphate fluoropolymer p(vdf/tfe) tape casting |
| url | https://chimicatechnoacta.ru/article/view/6026 |
| work_keys_str_mv | AT irinanbagryantseva protonconductingmembranesbasedoncsh2po4andcopolymeroftetrafluoroethylenewithvinylidenefluoride AT yuriekungurtsev protonconductingmembranesbasedoncsh2po4andcopolymeroftetrafluoroethylenewithvinylidenefluoride AT valentinagponomareva protonconductingmembranesbasedoncsh2po4andcopolymeroftetrafluoroethylenewithvinylidenefluoride |