info:eu-repo/semantics/article
Differences in the heterogeneous nature of hydriding/dehydriding kinetics of MgH2 - TiH2 nanocomposites
Fecha
2020-10Registro en:
Biasetti, Andrés Tobías; Mendoza Zélis, Luis Alejandro; Meyer, Marcos; Differences in the heterogeneous nature of hydriding/dehydriding kinetics of MgH2 - TiH2 nanocomposites; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 45; 51; 10-2020; 27421-27433
0360-3199
CONICET Digital
CONICET
Autor
Biasetti, Andrés Tobías
Mendoza Zélis, Luis Alejandro
Meyer, Marcos
Resumen
Fine powder dispersions of MgH2 - TiH2 composites were obtained through different manufacturing routes using reactive mechanical grinding. The as prepared powder dispersions were subjected to hydrogen sorption kinetics and the results clearly revealed a heterogeneous kinetic nature already reported in nanocrystalline MgH2. The differences observed in the heterogeneous kinetic of isothermal kinetics reveal a strong dependence on grain boundaries microstructure of the prepared hydrides. The basic findings described here suggest the need for studies to understand how the superposition of complex mechanisms are involved in kinetics regarding the microstructure.