Synthesis of Cu-BTC, from Cu and benzene-1,3,5-tricarboxylic acid (H3BTC), by a green electrochemical method

Abstract

A metal organic framework (MOF) material based on Cu-BTC, which is formed from Cu and benzene-1,3,5-tricarboxylic acid (H3BTC), with 1D and 3D structures was synthesized under potential control. Cu-BTC 3D was electrodeposited at an applied potential of 5 V using tetrabutylammonium tetrafluoroborate (TBATFB) as electrolyte during 10-60 min. Hydration showed that the phase structure of Cu-BTC 3D did not change after a short time of immersing in water and that the specific surface area increased from 48 m2/g to 371 m2/g. In contrast, with a long time of hydration (more than 4 h), Cu-BTC was destroyed and a dehydration process could not recover the Cu-BTC structure.