Crown-type tetranuclear Ag-POM exhibits excellent proton conductivity performance
A crown-type tetranuclear Ag-POM, Na<sub>24</sub>[Ag<sub>3.4</sub>Na<sub>0.6</sub>(As<sub>4</sub>W<sub>40</sub>O<sub>140</sub>)]·82H<sub>2</sub>O (1), was synthesized based on the structural features of {As<sub>4</sub>W<sub>40</sub>} using simple materials through the hydrothermal method. The polyanion of compound 1 consists of a tetranuclear silver cluster embedded in the cyclic ligand {As<sub>4</sub>W<sub>40</sub>} and the polyanions linked by Na<sup>+</sup> to form a 3D framework. Moreover, compound 1 exhibits excellent proton conductivity, with an optimal conductivity of 2.24 × 10<sup>-2</sup> S cm<sup>-1</sup> at 90% RH, 358 K. Furthermore, it demonstrates outstanding cycling stability during heating-cooling cycles and durability over 68 h.
Authors
- Jingyang Niu (ORCID: https://orcid.org/0000-0001-6526-7767)
- Yahao Sun
- Pengtao Ma (ORCID: https://orcid.org/0000-0002-0587-8635)
- Jingping Wang (ORCID: https://orcid.org/0000-0001-8079-5939)
- Minzhen Cai
Institutions
- Henan University (CN)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt01141h
- Primary Topic
- Fuel Cells and Related Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00