Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 17, Pages 5142-5146Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201411703
Keywords
metal-organic frameworks; postsynthetic oxidation; proton-conducting materials; sulfonic acid groups; thiol groups
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Funding
- Korea CCS R&D Center (KCRC) grant - Korean government (The Ministry of Science, ICT and Future Planning (MSIP)) [NRF-2014M1A8A1049253]
- Priority Research Centers Program [NRF20100020209]
- National Research Foundation of Korea [2010-0020209] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Facile postsynthetic oxidation of the thiol-laced UiO-66-type framework UiO-66(SH)(2) enabled the generation of UiO-66(SO3H)(2) with sulfonic acid groups covalently linked to the backbone of the system. The oxidized material exhibited a superprotonic conductivity of 8.4 x 10(-2) S cm(-1) at 80 degrees C and 90% relative humidity, and long-term stability of the conductivity was observed. This level of conductivity exceeds that of any proton-conducting MOF reported to date and is equivalent to the conductivity of the most effective known electrolyte, Nafion.
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