SYNTHESIS AND CHARACTERIZATION OF GAMMA ALUMINA FROM HYDROGEN PRODUCTION ALUMINUM WASTE Mita Fitriani , Ramlan , Deni Shidqi Khaerudini
Sriwijaya University
Abstract
Aluminum cans can be used as raw material for hydrogen production. This study aims to study the effect of calcination temperature on the structure and density of gamma alumina. The synthesis of gamma alumina is made from the by-product of hydrogen production, so that the production process will be environmentally friendly and low-cost. The calcination process serves to change the phase of the by-product of hydrogen production. The XRD results show the highest intensity as indicated by the by-product sample of hydrogen production by using a reaction with a concentration of 2M NaOH and a mass of 2gram aluminum powder calcined at a temperature of 700C. At the calcination temperature, the higher the given calcination temperature, the higher the peak intensity produced by gamma alumina. The density value affects the thickness and crystallinity loss. The highest density value at a calcination temperature of 1000C is 36.67gr/cm3 and the lowest density value is 3.19gr/cm3 which is calcined at a temperature of 600C. Density test showed that samples calcined at temperatures of 800, 900, and 1000C had high density values because alumina phases other than gamma alumina had been identified.
Keywords: gamma alumina, hydrogen production, calcination, crystallinity, density
