Microstructural development in nanocrystalline MgH2 during H-absorption/desorption cycling

D. Fátay, T. Spassov, P. Delchev, G. Ribárik, A. Révész

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Repeated dehydriding/hydriding cycles of ball-milled nanocrystalline MgH2 powders were carried out in a Sievert's-type apparatus. The microstructural changes during cycling were characterized by X-ray diffraction. Using the convolutional multiple whole profile fitting procedure, several microstructural parameters, i.e. the average grain size and the grain-size distribution of the as-milled and treated samples were determined. Based on the shrinking core model, the significant difference between the microstructures obtained after the first and repeated cyclings was explained.

Original languageEnglish
Pages (from-to)2914-2919
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume32
Issue number14
DOIs
Publication statusPublished - Sep 2007

Fingerprint

Nanocrystalline powders
Desorption
desorption
X ray diffraction
Microstructure
cycles
grain size
balls
microstructure
profiles
diffraction
x rays

Keywords

  • Hydrogen sorption
  • MgH
  • Nanocrystalline
  • X-ray line profile analysis

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Microstructural development in nanocrystalline MgH2 during H-absorption/desorption cycling. / Fátay, D.; Spassov, T.; Delchev, P.; Ribárik, G.; Révész, A.

In: International Journal of Hydrogen Energy, Vol. 32, No. 14, 09.2007, p. 2914-2919.

Research output: Contribution to journalArticle

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