Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes
Two rare-earth-induced peroxo-polyoxotungstates (peroxo-POTs), namely, two-dimensional [Ln2(H2O)4(OH)P2W6(O2)4O23]3− (2D-Ln2, Ln = Pr, Sm) and one-dimensional [Ln(H2O)4P4W6(O2)6(OH)4O24]5− (1D-Ln, Ln = Gd, Tb, Dy, Ho), were successfully prepared by similar synthesis methods based on that used to syn...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-03-01
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| Series: | Polyoxometalates |
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| Online Access: | https://www.sciopen.com/article/10.26599/POM.2024.9140077 |
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| author | Qianqian Shang Keqin Shen Dongyan Zhao Xiaoyue Wang Yuting Wei Haiying Wang Guan Wang Dongdi Zhang Jingyang Niu |
| author_facet | Qianqian Shang Keqin Shen Dongyan Zhao Xiaoyue Wang Yuting Wei Haiying Wang Guan Wang Dongdi Zhang Jingyang Niu |
| author_sort | Qianqian Shang |
| collection | DOAJ |
| description | Two rare-earth-induced peroxo-polyoxotungstates (peroxo-POTs), namely, two-dimensional [Ln2(H2O)4(OH)P2W6(O2)4O23]3− (2D-Ln2, Ln = Pr, Sm) and one-dimensional [Ln(H2O)4P4W6(O2)6(OH)4O24]5− (1D-Ln, Ln = Gd, Tb, Dy, Ho), were successfully prepared by similar synthesis methods based on that used to synthesize {P3W6(O2)6} clusters. However, although the original {P3W6(O2)6} building block remained, a completely new structure was achieved in these two lanthanide-based peroxo-POT derivatives that was induced by the rare-earth cations. 2D-Ln2 was composed of {P2W6(O2)4} polyanion units linked by replacing {PW3(O2)3} with {PW3(O2)2}, while 1D-Ln was composed of two symmetric {P2W3(O2)3} cores connected by rare-earth cations. Furthermore, the proton conductivities of 2D-Ln2 and 1D-Ln were investigated. At 65 °C and 95% relative humidity (RH), 2D-Pr2 and 1D-Tb exhibited conductivities of 2.62 × 10−3 and 2.78 × 10−3 S∙cm−1, respectively, while the conductivities of their corresponding Nafion membranes were considerably higher, with values of 1.65 × 10−1 and 1.44 × 10−1 S∙cm−1, respectively, under the same conditions. |
| format | Article |
| id | doaj-art-3fcb49f1fc2f416ca41d241ff1da363a |
| institution | Kabale University |
| issn | 2957-9821 2957-9503 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Polyoxometalates |
| spelling | doaj-art-3fcb49f1fc2f416ca41d241ff1da363a2025-01-24T08:12:25ZengTsinghua University PressPolyoxometalates2957-98212957-95032025-03-0141914007710.26599/POM.2024.9140077Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranesQianqian Shang0Keqin Shen1Dongyan Zhao2Xiaoyue Wang3Yuting Wei4Haiying Wang5https://orcid.org/0000-0001-6413-9931Guan Wang6Dongdi Zhang7https://orcid.org/0000-0002-2715-8591Jingyang Niu8Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475004, ChinaTwo rare-earth-induced peroxo-polyoxotungstates (peroxo-POTs), namely, two-dimensional [Ln2(H2O)4(OH)P2W6(O2)4O23]3− (2D-Ln2, Ln = Pr, Sm) and one-dimensional [Ln(H2O)4P4W6(O2)6(OH)4O24]5− (1D-Ln, Ln = Gd, Tb, Dy, Ho), were successfully prepared by similar synthesis methods based on that used to synthesize {P3W6(O2)6} clusters. However, although the original {P3W6(O2)6} building block remained, a completely new structure was achieved in these two lanthanide-based peroxo-POT derivatives that was induced by the rare-earth cations. 2D-Ln2 was composed of {P2W6(O2)4} polyanion units linked by replacing {PW3(O2)3} with {PW3(O2)2}, while 1D-Ln was composed of two symmetric {P2W3(O2)3} cores connected by rare-earth cations. Furthermore, the proton conductivities of 2D-Ln2 and 1D-Ln were investigated. At 65 °C and 95% relative humidity (RH), 2D-Pr2 and 1D-Tb exhibited conductivities of 2.62 × 10−3 and 2.78 × 10−3 S∙cm−1, respectively, while the conductivities of their corresponding Nafion membranes were considerably higher, with values of 1.65 × 10−1 and 1.44 × 10−1 S∙cm−1, respectively, under the same conditions.https://www.sciopen.com/article/10.26599/POM.2024.9140077peroxo-phosphotungstaterare-earthproton conductivity |
| spellingShingle | Qianqian Shang Keqin Shen Dongyan Zhao Xiaoyue Wang Yuting Wei Haiying Wang Guan Wang Dongdi Zhang Jingyang Niu Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes Polyoxometalates peroxo-phosphotungstate rare-earth proton conductivity |
| title | Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes |
| title_full | Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes |
| title_fullStr | Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes |
| title_full_unstemmed | Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes |
| title_short | Rare-earth-induced peroxo-phosphotungstates: Enhanced proton conductivity in corresponding membranes |
| title_sort | rare earth induced peroxo phosphotungstates enhanced proton conductivity in corresponding membranes |
| topic | peroxo-phosphotungstate rare-earth proton conductivity |
| url | https://www.sciopen.com/article/10.26599/POM.2024.9140077 |
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