Design of a AB5-metal hydride cylindrical tank for hydrogen storage

Author(s):  
Yuanlu Li ◽  
Erika Teliz ◽  
Fernando Zinola ◽  
Verónica Díaz
Adsorption ◽  
2005 ◽  
Vol 11 (S1) ◽  
pp. 871-876 ◽  
Author(s):  
Sarang A. Gadre ◽  
Armin D. Ebner ◽  
James A. Ritter

2021 ◽  
Author(s):  
Roland Hermann Pawelke

A remarkable finding of metal hydride hydrogen storage is that substituting 4 mol % sodium by potassium in 4 mol % Ti-doped NaAlH<sub>4</sub> raises the reversible hydrogen storage capacity from 3.3 % w/w H to 4.7 % w/w H. This increase by 42% is concomitant with a slightly lower desorption enthalpy: intriguingly enough, it is substantially more hydrogen capacity at slightly less desorption enthalpy. The general solution to that puzzle has been already derived from a gas phase point of view, taking advantage of the equilibrium nature of the matter, which thus comes in terms of an ideal gas chemical potential. However, it is also interesting to investigate for the flipside effect in the sorbent phase, affecting molar volume. This paper elucidates by the example of K/Ti-co-doped NaAlH<sub>4</sub> the relation of doping modifications to surplus hydrogen amount and hydride molar volume, defining the term “reaction pathway” in this context, yielding the according figures.<br>


2021 ◽  
Vol 2039 (1) ◽  
pp. 012005
Author(s):  
D V Blinov ◽  
V I Borzenko ◽  
A V Bezdudny ◽  
A N Kazakov

Abstract The results of the development of metal hydride (MH) reactors for the storage and purification of hydrogen of various types are presented. Two methods of metal hydride purification of hydrogen are presented. The use of the MH method of flow-through purification of hydrogen has high hydrogen recovery rates at high volume contents of hydrogen in the mixture (⩾10% vol.), while the method of periodic evacuation of accumulated impurities is most effective at low hydrogen contents in the mixture (<10% vol.).


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