Derivatography analysis DTA and its application

The selection of best preparation conditions of catalyst is very important to obtain an excellent performance of the catalyst. The process of calcination and activation is the key step to determine the structure of catalysts dming preparation. Differential thermal analysis techniques can determine the specific conditions for various steps, such as the beginning and the end of the decomposition temperature and, suitable for calcining temperature etc. 

In organic chemistry reaction, the catalyst is often inactive due to carbon deposition on its surface. The regeneration of the catalysts often adopts the method of burning carbon. At this time, the choice of the temperature and duration of burning carbon is very important. It is not difficult to determine the appropriate conditions for burning carbon according to the exothermic peak of DTA curve. 

Using similar methods, when stud3dng the thermal effects on the catalyst, such as water loss, released CO2, NH3, nitrogenous oxides etc, as well as thermal changes during the reduction by hydrogen gas and CO, can help to identify the appropriate conditions for these special reactions (decomposition, reduction, oxidation etc). 

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