Two porous hydrogen-bonded organometallic frameworks
termed as MPM-1-Br and MPM-1-Cl
were synthesized from adenine and CuBr2(or CuCl2) at room temperature by slow diffusion method.The synthesized materials were characterized by analysis techniques including SEM
PXRD
TGA and specific surface area analysis.Single-component adsorption isotherms for acetylene and carbon dioxide on these materials were also determined.The experimental results revealed that MPM-1-Br and MPM-1-Cl have moderately high BET surface(373 m2·g-1
417 m2·g-1)
and they show good thermo stability at temperature up to 240℃.The calculations were performed using the ideal adsorbed solution theory(IAST) based on the single-component adsorption isotherms
obtaining the adsorption selectivity of MPM-1-Br and MPM-1-Cl for binary mixture of acetylene and carbon dioxide(50:50
volume ratio) to be 3.8 and 3.0 at temperature of 298 K and total pressure of 100 kPa
respectively
which are comparable to those on HKUST-1 and UTSA-30.