A 3D neutral porous MOF (1), [Co₂(tdc)₂(Hdatz).DMF(H₂O)₃]_n (H₂tdc = 2,5-thiophenedicarboxylic acid, Hdatz = 3,5-diamino-1,2,4-triazole), which has aplenty micropores along with free groups of NH2 was assembled via combining 2,5-thiophenedicarboxylic acid ligands and nitrogen-rich 3,5-diamino-1,2,4-triazole as well as Co(II) ion. The activated MOF (1a) has a fine affinity for CO₂ molecules and a fine catalytic performance for the conversion of CO₂ with internal epoxides along with various terminal ones. Furthermore, the protective activity of 1a on acute heart failure was evaluated by measuring left ventricular ejection fraction and Left ventricular fraction shortening. And the mechanism of this compound was explored by detect the Hif-1a expression level