Enhanced stability and ultrahigh proton conductivity of hydrogen-bonded organic frameworks

Abstract

The low stability of hydrogen bonded organic frameworks (HOFs) greatly limit their practical application. Herein, we synthesized a sulfonate-containing HOF and further improved its stability by crosslinking its crystal particles...

Proton conduction of an ionic HOF with multiple water molecules and application as a membrane filler in direct methanol fuel cells

“…At present, research on crystalline proton conducting materials mainly focuses on metal-organic frameworks (MOFs), [18][19][20][21][22] covalentorganic frameworks (COFs) [23][24][25][26][27] and hydrogen-bonded organic frameworks (HOFs). [28][29][30][31] As a class of hydrogen-bond-rich materials, HOFs should have great prospects as proton conductors and deserve to be explored. The sulphonate group (-SO 3 H) presents a number of advantages in proton conduction due to its unique structural advantages, including abundant a Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.…”

Synthesis and characterization of two metallo-hydrogen-bonded organic frameworks with diverse structures and properties

“…Hydrogen-bonded organic frameworks (HOFs), an emerging type of crystalline porous material, have demonstrated promising applications in various fields such as catalysis, 1–3 sensing, 4–8 proton conductivity, 9,10 and adsorption. 11–17 The construction of HOFs relies on using functional groups with hydrogen-bonded acceptor and donor properties to create molecular building blocks.…”