Copper-based coordination polymers from thiophene and furan dicarboxylates with high isosteric heats of hydrogen adsorption?
CrystEngComm Pub Date: 2014-03-27 DOI: 10.1039/C4CE00145A
Abstract
Self-assembled Cu-based coordination polymers derived from thiophene-2,5-dicarboxylic acid (Cu-TDC) and furan-2,5-dicarboxylic acid (Cu-FDC) were synthesized via a solvothermal method and their H2 adsorption behaviour was investigated and contrasted with isophthalic acid (Cu-m-BDC) and terephthalic acid (Cu-BDC) derivatives. Both heterocyclic-based coordination polymers exhibit low surface areas (<300 m2 g?1) upon activation but unusually high isosteric heats of hydrogen adsorption (7.5–9.2 kJ mol?1). Hydrogen uptake values of 0.64–0.75 wt% (77 K and 1 bar) were recorded and these high uptake values are attributed to the optimal pore size (5.4–8 ?) and the polarizability of the 5-membered heterocycles.
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Journal Name：CrystEngComm
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CAS no.: 89640-58-4
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