scholarly journals Preparation and thermal analysis kinetics of the core–nanoshell composite materials doped with Sm

2013 ◽  
Vol 116 (2) ◽  
pp. 905-913 ◽  
Author(s):  
Ruxin Che ◽  
Yijun Jiang ◽  
Liqiu Wei ◽  
Xiaona He
2005 ◽  
Vol 21 (09) ◽  
pp. 1001-1005 ◽  
Author(s):  
SHAN Hai-wei ◽  
◽  
CHEN Dong-hua ◽  
TANG Wan-jun

Author(s):  
Xiangli Long ◽  
Qingyan Liang ◽  
A Politov ◽  
Hong Gao ◽  
Yansheng Li ◽  
...  

2014 ◽  
Vol 1015 ◽  
pp. 509-512
Author(s):  
Feng Pan ◽  
Zai Yuan Li ◽  
Chun Ji Li

This paper studies on the thermal analysis kinetics of nanometer powders ethanol desorption process.The DTA-TG-DTG curves obtain by SDT 2960 Simultaneous DSC-TGA analysis apparatus. Under the condition of N2atmosphere operation and rise temperature velocity was 10°C·min-1. The mechanism functionis used to calculate the kinetics factors. Reaction progressionnwas obtained by calculation of the kissinger peak shape factor method. The results showed that the apparent activation energy of nano-Ni(OH)2was 73.210 kJ·mol-1, the pre-exponential factor was 2.349×1012, the reaction progression was obtained as 1.2767, the kinetic equation is


2013 ◽  
Vol 750-752 ◽  
pp. 1322-1325
Author(s):  
Jun Song ◽  
Wen Long Jian ◽  
Li Wang

Actived carbon can be widely used as adsorbent, catalyst and catalyst support for many chemical reactions. At present, the research on thermal analysis Kinetics of actived carbon is quite few.Studing on it,is helpful for disclosing the decomposition reaction process and thermodynamic law of actived carbon. By thermal analysis, thermal decomposition Characteristics of actived carbon is studied. The TG and DTG eurves of actived carbon were obtain ed using multiple heating rate method.The test data were processed by iso-conversional method to obtain the kinetic parameters.The results showed that, with the improving of heating rate , the startimg reaction temperature of TG and the peak temperature of DTG shifted to the high temperature zone, postponement phenomena occurred.Based on the collected experimental data, it proved that had better linear relations with . The activation energy E of decomposition reaction of actived carbon, which was determined by measurements of slope, was 96.59kJ/mol. The plot of vs was drew and a straight line was obtained. .The mechanism function was defined as ,so according to the slope and intercept of the line,it can be obtained that n=3.585,A=40189.85984.


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