Journal ArticleAuthors: Nguyen, My V.; Dong, Hieu C.; Nguyen, Duc Manh; Vu, Nam H.; Phan, Thang B. (2021)
We study the proton conductivity properties of MOF-801. We find that MOF-801 possesses intrinsic
proton carrier sites, m3-OH groups, in clusters yielding the generation of hydrogen-bonding networks
with guest water molecules at high relative humidity (RH), facilitating proton transport. Remarkably, this
material has a high proton conductivity of 1.82 10 3 S cm 1 under 98% RH at 90 C and maintains its
performance over an extended time. Our investigations reveal that the increase in proton conductivity is
correlated to numerous hydrogen bonds within the MOF structure. The activation energy of this process
is low (Ea ¼ 0.21 eV), showing that the protons hop through the membrane ...