Water mediated proton conductance in a hydrogen-bonded Ni(II)-bipyridine-glycoluril chloride self-assembled framework
| Title | Water mediated proton conductance in a hydrogen-bonded Ni(II)-bipyridine-glycoluril chloride self-assembled framework |
| Publication Type | Journal Article |
| Year of Publication | 2018 |
| Authors | Tayade, SB, Bhat, SS, Illathvalappil, R, Dhavale, VM, Kawade, VA, Kumbhar, AS, Kurungot, S, Näther, C |
| Journal | CrystEngComm |
| Volume | 20 |
| Issue | 8 |
| Pagination | 1094-1100 |
| Date Published | JAN |
| Type of Article | Journal Article |
| ISSN | 14668033 |
| Abstract | Proton conducting properties have been investigated in a new Ni(II)-based hydrogen-bonded porous framework synthesized using a urea-fused bipyridine-glycoluril (BPG) tecton. This hydrogen-bonded self-assembled structure encapsulates water molecules in the channels with hydrogen-bonding networks which exhibits a significant temperature dependent proton conductance of 1.5 × 10−4 S cm−1 at 95 °C and 95% RH with a low activation energy (<em>E</em>a) of 0.54 eV, implying a Grotthuss proton hopping mechanism mediated by hydrogen-bonded water molecules in the channels. In addition, this framework exhibited a very high water uptake under humid conditions. A continuous array of water molecules and chloride ions embedded in the highly hydrophilic porous channels of the hydrogen-bonded framework acts as the proton conducting medium. |
| DOI | 10.1039/c7ce01814b |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.474 |