Assessment of changes in desorption mechanism of MgH2 after ion bombardment induced destabilization

Matović, Ljiljana; Kurko, Sandra; Rašković-Lovre, Željka; Vujašin, Radojka; Milanović, Igor; Milošević, Sanja; Novaković, Jasmina Grbović

doi:10.1016/j.ijhydene.2012.01.084

Cited by 23 publications

(15 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among of them, nanostructuring [3,4], chemical alloying [5,6], catalyst doping [7,8], surface modifying [9,10], applying stress/strain [11,12], etc. exhibited pronounced effects in enhancing the dehydrogenation characteristics of MgH 2 .…”

Section: Introductionmentioning

confidence: 99%

Influences and mechanisms of graphene-doping on dehydrogenation properties of MgH2: Experimental and first-principles studies

Zhang

Mao

et al. 2015

Energy

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Influences and mechanisms of graphene-doping on dehydrogenation properties of MgH2: Experimental and first-principles studies

Zhang

Mao

et al. 2015

Energy

View full text Add to dashboard Cite

“…Hydrogen desorption properties and kinetics were evaluated from TPD measurements and numerical procedure explained in experimental part (see Fig. 5) [10]. It can be noticed that all the samples completely release hydrogen in a single process.…”

Section: Desorption Properties and Kineticsmentioning

confidence: 99%

“…Any of them could be the rate limiting step [10]. In order to reveal the most important factors governing the sorption properties of MgH 2 , it is crucial to obtain a better understanding of the changes induced by the destabilization processes [7 -11].…”

Section: Introduction *mentioning

confidence: 99%

Changes in Storage Properties of Hydrides Induced by Ion Irradiation

Novaković

Kurko

Rašković-Lovre

et al. 2013

Self Cite

View full text Add to dashboard Cite

The influence of structural changes caused by irradiation with different ions, their energies and fluences on sorption properties has been investigated. Results suggest that there are several mechanisms of desorption depending on defect concentration, their interaction and ordering. It has been also demonstrated that the changes in near-surface area play the crucial role in hydrogen desorption kinetics. It is confirmed that there is possibility to control the thermodynamic parameters of these systems by controlling vacancies depth profile and concentration.

DOI: http://dx.doi.org/10.5755/j01.ms.19.2.1579

show abstract

“…The paper of Matovi et al 4) dealt with non-isothermal kinetics models of hydrogen desorption from MgH 2 altered by ion bombardment and stressed the importance of the MgH 2 surface during its decomposition. In the case of argon-irradiated samples, where defects were induced in the near-surface region, the Avrami Erofeev mechanism with parameter n = 2 could be adopted while in the case of ′ c † boron-irradiated samples, where defects were created deeper in the bulk, the desorption mechanism was the same with n = 3.…”

Section: )mentioning

confidence: 99%

Hydrogen Storage Properties of Pure MgH2

Kwak¹,

Lee²,

Park³

et al. 2013

Korean. J. Mater. Res.

View full text Add to dashboard Cite

The hydrogen storage properties of pure MgH 2 were studied and compared with those of pure Mg. At the first cycle, pure MgH 2 absorbed hydrogen very slowly at 573 K under 12 bar H 2 . The activation of pure MgH 2 was completed after three hydriding-dehydriding cycles. At the 4 th cycle, the pure MgH 2 absorbed 1.55 wt% H for 5 min, 2.04 wt% H for 10 min, and 3.59 wt% H for 60 min, showing that the activated MgH 2 had a much higher initial hydriding rate and much larger H a (60 min), quantity of hydrogen absorbed for 60 min, than did activated pure Mg. The activated pure Mg, whose activation was completed after four hydriding-dehydriding cycles, absorbed 0.80 wt% H for 5 min, 1.25 wt% H for 10 min, and 2.34 wt% H for 60 min. The particle sizes of the MgH 2 were much smaller than those of the pure Mg before and after hydridingdehydriding cycling. The pure Mg had larger hydrogen quantities absorbed at 573K under 12 bar H 2 for 60 min, H a (60 min), than did the pure MgH 2 from the number of cycles n = 1 to n = 3; however, the pure MgH 2 had larger H a (60 min) than did the pure Mg from n = 4 to n = 6.

show abstract

Assessment of changes in desorption mechanism of MgH2 after ion bombardment induced destabilization

Cited by 23 publications

References 33 publications

Influences and mechanisms of graphene-doping on dehydrogenation properties of MgH2: Experimental and first-principles studies

Influences and mechanisms of graphene-doping on dehydrogenation properties of MgH2: Experimental and first-principles studies

Changes in Storage Properties of Hydrides Induced by Ion Irradiation

Hydrogen Storage Properties of Pure MgH2

Contact Info

Product

Resources

About