Abstract
A novel metal organic framework [Co (BTC)1/3 (DMF) (HCOO)] n (CoMOF, BTC = 1,3,5-benzene tricarboxylate, DMF = N,N-dimethylformamide) has been synthesized solvothermally and characterized by single crystal X-ray diffraction, X-ray powder diffraction, and FT-IR spectra. The molar heat capacity of the compound was measured by modulated differential scanning calorimetry (MDSC) over the temperature range from 198 to 418 K for the first time. The thermodynamic parameters such as entropy and enthalpy versus 298.15 K based on the above molar heat capacity were calculated. Moreover, a four-step sequential thermal decomposition mechanism for the CoMOF was investigated through the thermogravimetry and mass spectrometer analysis (TG-DTG-MS) from 300 to 800 K. The apparent activation energy of the first decomposition step of the compound was calculated by the Kissinger method using experimental data of TG analysis.
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Acknowledgements
The authors gratefully acknowledge the financial support for this study from the National Natural Science Foundation of China (No. 2083309, 20873148, 50671098 and U0734005), the National High Technology Research and Development Program of China (2007AA05Z115 and 2007AA05Z102), the National Basic Research Program (973 program) of China (2010CB631303), and IUPAC (Project No. 2008-006-3-100).
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Jiang, CH., Song, LF., Zhang, J. et al. Thermodynamic properties and heat capacities of Co (BTC)1/3 (DMF) (HCOO). J Therm Anal Calorim 102, 1087–1093 (2010). https://doi.org/10.1007/s10973-010-0688-x
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DOI: https://doi.org/10.1007/s10973-010-0688-x