Methodological Aspects in the Study of Mechanochemical Processes
G. Mulas1, F. Delogu2, S. Enzo1, L. Schiffini1 and G. Cocco1
1Department of Chemistry, University of Sassari,
Via Vienna 2, I-07100 Sassari (Italy)
E-mail: mulas@uniss.it
2Department of Chemical Engineering and Materials Science, University of Cagliari,
Piazza d'Armi 1, 09123 Cagliari (Italy)
E-mail: delogu@dicm.unica.it
Pages: 213-218
Abstract
A methodological approach is presented to study gas-solid interactions under mechanochemical activation. Based on a detailed analysis of bulk microstructure, surface features control of milling energy parameters, the H2 sorption kinetics in Mg2Ni/Ni nanostructured powders was studied. Hydriding rate and specific parameters such as turnover frequency, mechanochemical gain and instantaneous yield were used to analyze the process on an absolute scale, to elucidate the reaction mechanism and highlight mechanochemical effects.
|
