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- Title
The thermal decomposition of silver dinitramide AgN(NO).
- Authors
Chen, Baili; Jin, Bo; Peng, Rufang; Zhao, Fengqi; Yi, Jianhua; Guan, Huijuan; Bu, Xingbing; Zhao, Jun; Chu, Shijin
- Abstract
Silver dinitramide AgN(NO) was prepared, and its structure was characterized by UV-Visible absorption spectra, Fourier transform infrared (FT-IR) spectra and Fourier transform Raman spectra. Its thermal decomposition process was investigated by differential scanning calorimetry and thermogravimetric analysis coupled with the gas analysis by FT-IR (EGA-FT-IR). The intermediate and final products of thermal decomposition were analyzed by FT-IR, Raman spectra and X-ray diffraction. Kissinger method and Ozawa methods were used to calculate apparent activation energy E , the pre-exponential constant lg A and linear correlation coefficient r. The results showed that the degradation process of AgN(NO) could be divided into two stages. The first one with a mass loss of 21.86 % took place in 408-483 K, in which NO was released and the intermediate product of thermal decomposition was AgNO. The second stage with a mass loss of 28.24 % occurred in 483-800 K. In this process, gases NO and O were evolved and Ag was the final product of thermal decomposition. Kissinger method results: E = 66.59 kJ mol, lg A = 7.21 min and r = 0.9913. Ozawa method results: E = 70.53 kJ mol, r = 0.9987.
- Subjects
SILVER compounds; NITRAMIDE; THERMAL properties of metals; CHEMICAL decomposition; ULTRAVIOLET-visible spectroscopy; DIFFERENTIAL scanning calorimetry
- Publication
Journal of Thermal Analysis & Calorimetry, 2016, Vol 126, Issue 3, p1491
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-016-5643-z