| Autor: |
Irina N. Bagryantseva, Yuri E. Kungurtsev, Valentina G. Ponomareva |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Chimica Techno Acta, Vol 9, Iss 3 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2411-1414 |
| DOI: |
10.15826/chimtech.2022.9.3.03 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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