Opto-mechanical characterization of hydrogen storage properties of Mg–Ni thin film composition spreads

2007 ◽  
Vol 254 (3) ◽  
pp. 682-686 ◽  
Author(s):  
A. Ludwig ◽  
J. Cao ◽  
B. Dam ◽  
R. Gremaud
Keyword(s):  
Thin Film ◽  
Hydrogen Storage ◽  
Mechanical Characterization ◽  
Film Composition ◽  
Hydrogen Storage Properties ◽  
Storage Properties

Phase Structure and Hydrogen Storage Characterization of the As-Cast Mg-10Ni-2Mm Alloy

2010 ◽  
Vol 650 ◽  
pp. 150-156 ◽  
Author(s):  
N. Xing ◽  
P.C. Bai ◽  
Ying Wu ◽  
Z.C. Lu ◽  
W. Han ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Absorption ◽  
Absorption Capacity ◽  
Desorption Kinetics ◽  
Isothermal Temperature ◽  
Hydrogen Storage Properties ◽  
Metallic Particles ◽  
Kinetics Of ◽  
Storage Properties

The microstructural revolution of non-hydrogenated and hydrogenated Mg-based Mg-10Ni-2Mm alloy was studied. PCT and H-absorption/desorption kinetics were performed to evaluate the hydrogen storage properties. Storage capacities of 4.75, 5.03 and 5.27wt.%H for the alloy were obtained at 300, 325 and 350°C, respectively. The phases in the hydrogenated samples are mainly MgH2 and Mg2NiH4. Two absorption/desorption plateau existed in the PCT curves at each isothermal temperature. The values of ΔH and ΔS of the Mg2NiH4-formation was respectively -61.5 kJ/mol H2 and -118.6 J/mol H2 K which is lower compared with literature values. The kinetics of the H-absorption/desorption reactions for the alloy was improved by increasing the temperature. The alloy at 350°C showed the best kinetics performance of the H-absorption/desorption among the three temperatures. It is suggested that metallic particles and Mm may be mainly responsible for the improvement of the H-absorption/desorption kinetics, and Ni for the enhancement of hydrogen absorption capacity of the alloys.

Characterization of hydrogen storage properties of Mg-Fe-CNT composites prepared by ball milling, hot-extrusion and severe plastic deformation methods

2016 ◽  
Vol 41 (48) ◽  
pp. 23092-23098 ◽  
Author(s):  
Gisele Ferreira de Lima Andreani ◽  
Maria Regina Martins Triques ◽  
Claudio Shyinti Kiminami ◽  
Walter Jose Botta ◽  
Virginie Roche ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Hydrogen Storage ◽  
Ball Milling ◽  
Hot Extrusion ◽  
Hydrogen Storage Properties ◽  
Storage Properties
Sign in / Sign up

Export Citation Format

Share Document