Fabrications and Evaluations of Hydrogen Capacities on MgHX-Transition Metal Oxide(TMO) Composites by Mechanical Alloying
Year: 2011
Type: article
Abstract: Hydrogen energy had recognized clean systems and high energy carrier. Mg and Mg-based materials have been lightweight and low cost materials which had been 7.6wt.% hydrogen capacity. However, Mg and Mg-alloys were currently hinder by its high absorption/desorption temperature, and very slow reaction kinetics. Therefore, one of the most methods to improve kinetics focused on addition transition metal oxide. Addition to transition metal oxide in MgHxpowder produce MgHx-metal oxide composition by mechanical alloy and it analyze XRD, EDS, TG/DSC, SEM, and PCI. This report considers kinetics by transition metal oxide rate and hydrogen pressure. In this research, we can see behavior of hydriding/dehydriding profiles by addition catalyst (transition metal oxide). MgHx-5wt.%Fe2O3composite was measured most high hydrogen capacity and fast kinetics.
Source: Materials science forum
Authors: Jung Il Lee, Kyeong Il Kim, Sung Woong Yoo, Young Geun Lee, Whan Gi Kim, Mie Won Jung, Tae Whan Hong
Institutions: Konkuk University, Sungshin Women's University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2045956909