Abstract
Magnetic and thermoelectric power (TEP) measurements are used to quantify hydrogen availability, absorption, and desorption in materials for nickel-hydride batteries and hydrogen storage. The effect of the concentration of conduction electrons is introduced and used to investigate hydride properties of these alloys. To investigate hydrogenation properties the calculated average number ofd-band electrons in hydrogen storage material is related to the measured thermoelectric power. Also, a thermodynamic exprssion of equilibrium is applied to demonstrate the relationship between the TEP and the activity of hydrogen for hydrogen adsorption. Magnetization decreases with increasing absorbed hydrogen in the stoichiometric LaNi4.78Sn0.22 alloy. However, magnetization increases with increasing hydrogen content in the nonstoichiometric La0.95Ni4.6Sn0.3 alloy. The TEP for the stoichiometric LaNi4.78Sn0.22 alloy monotonically increases as a function of hydrogen content. However, the TEP of the nonstoichiometric La0.95Ni4.6Sn0.3 alloy decreases as hydrogen content increases.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
