Designed synthesis of a proton-conductive Ho-MOF with reversible dehydration and hydration†
Abstract
A Ho-MOF ([Ho(SIP)(H2O)5]·3H2O (1), NaH2SIP = monosodium 5-sulfoisophthalic acid) was designed and synthesized for proton conductivity. It showed a proton conductivity of 8.2 × 10−4 S cm−1 at 343 K and 98% relative humidity. Besides, compound 1 showed excellent water and chemical stability as well as reversible dehydration and hydration closely related to the proton conductivity.