Abstrakt

Kinetic study of nickel hydroxide thermal decomposition by constant rate thermal analysis (CRTA) at 5hPa water vapor pressure

RaoudhaYahyaoui,Kais Nahdi

The kinetic study of Ni(OH)2 dehydroxylation was carried out by means of constant rate thermal analysis technique in the temperature range from 248K up to 873K and at controlled residual water vapour pressure equal to 5 hPa. Apparent activation energy was measured experimentally, without any assumption on the kinetic model, using two CRTAcurves carried out at two constant rates in the ratio C2:C1=3. The linear regression method was applied to estimate the conversion function f(á).