High proton conductivity in a nickel(ii ) complex and its hybrid membrane
| Autor: | Fei Ren, Shuai-Liang Yang, Yue-Ying Yuan, Qing-Lun Wang, Chen-Xi Zhang |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Dalton Transactions. 48:2190-2196 |
| ISSN: | 1477-9234 1477-9226 |
| Popis: | A novel nickel(ii) complex, [Ni(2,2'-bpy)3](H2SBTC)(H2O)5 (1) (2,2'-bpy = 2,2'-bipyridyl), was synthesized based on [Ni(2,2'-bpy)3]2+ discrete units and a partially deprotonated sulfonate-carboxylate ligand of H4SBTC (5-sulfonyl-1,2,4-benzentricarboxylic acid). The adjacent [Ni(2,2'-bpy)3]2+ cationic units were connected to H2SBTC2- anions by hydrogen bonds to form a one-dimensional (1-D) chain. The 1-D chains were further linked using hydrogen bonds from free water molecules and H2SBTC2- anions to generate a two-dimensional (2-D) plane structure. The proton conductivity of 1 reaches 1.3 × 10-4 S cm-1 at 318 K, 98% RH. Furthermore, hybrid membranes composed of polyvinyl alcohol (PVA) and 1 as fillers were prepared with different mass percentages. The proton conductivity of 1@PVA-5 was found to be 1.6 × 10-3 S cm-1 at 313 K and 98% RH. The large number of alcoholic hydroxyl groups in PVA promote the resulting conductivity. |
| Databáze: | OpenAIRE |
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