Mesoporous Co(III) bis(tetrazolate) Framework for CO2 Adsorption

Mesoporous Co(III) bis(tetrazolate) metal organic framework was prepared by the reaction of cobalt (III) nitrate and tetrazole in water. The crystalline nature of the material was verified by its X-ray diffraction pattern. Its Fourier transform-infrared spectrum showed absence of N-H stretching vibration proving nitrogen coordination with cobalt. Its non-electrolytic nature was verified by its insolubility in water. Its surface area, pore size and pore volume were 543 m(2)/g, 4.9 nm and 0.67 cm(3)/g respectively. Its thermogravimetric analysis showed stability up to 250 degrees C. Its mesopore provided an opportunity to examine its CO2 uptake, and it was nearer to 6 wt%. This study revealed potential for other metal based tetrazolate derivatives for CO2 sorption.