Synergistic Conductivity Effect in a Proton Sources-Coupled Metal–Organic Framework,ACS Energy Letters

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Synergistic Conductivity Effect in a Proton Sources-Coupled Metal–Organic Framework
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-09-13 00:00:00 , DOI: 10.1021/acsenergylett.7b00560
Xiao-Min Li ₁ , Long-Zhang Dong ₁ , Shun-Li Li ₁ , Gang Xu ₂ , Jiang Liu ₁ , Feng-Ming Zhang ₁ , Li-Shi Lu ₁ , Ya-Qian Lan ₁

Affiliation

A water-stable metal–organic framework (MOF)-based composite, H₂SO₄@MIL-101-SO₃H, configured with functionalized sulfonate groups bound to the polymeric backbone and nonvolatile strong acid H₂SO₄ encapsulated into pores, is demonstrated as a superior proton-conducting material, owing to the resultant multiple proton-transfer pathways. This solid material exhibits a superprotonic conductivity of 1.82 S cm^–1 (70 °C, 90% RH) that is comparable to that of other excellent MOF-based proton conductors reported thus far. More importantly, the splendid conductivity (0.92 × 10^–2 S cm^–1, −40 °C) of the title material achieves an enormous improvement compared with that of all proton-conducting systems demonstrated at subzero temperatures.

中文翻译：

质子源耦合的金属有机骨架的协同电导效应

一种基于水稳定金属-有机骨架（MOF）的复合材料，H ₂ SO ₄ @ MIL-101-SO ₃ H，由与聚合物主链结合的官能化磺酸盐基团和包裹在孔中的非挥发性强酸H ₂ SO _4构成，由于所产生的多个质子转移途径，其被证明是一种优良的质子传导材料。这种固体材料具有1.82 S cm ^–1（70°C，90％RH）的超质子传导率，与迄今报道的其他基于MOF的优秀质子导体相当。更重要的是，出色的电导率（0.92×10 ^–2 S cm ^–1，−40°C）的标题材料，与在零以下温度下展示的所有质子传导系统相比，都取得了巨大的进步。

更新日期：2017-09-13

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