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Structural and hydrogen sorption properties of SmNi5−xGax system – an experimental and theoretical study (CROSBI ID 195691)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Biliškov, Nikola ; Miletić, Goran I. ; Drašner, Antun Structural and hydrogen sorption properties of SmNi5−xGax system – an experimental and theoretical study // International journal of hydrogen energy, 38 (2013), 27; 12213-12222. doi: 10.1016/j.ijhydene.2013.05.154

Podaci o odgovornosti

Biliškov, Nikola ; Miletić, Goran I. ; Drašner, Antun

engleski

Structural and hydrogen sorption properties of SmNi5−xGax system – an experimental and theoretical study

A series of ternary alloys of general formula SmNi5−xGax (x = 0.25, 0.5, 1.5, 2, 2.5) was prepared by melting mixtures of Sm, Ni and Ga in arc furnace under argon. From X-ray powder diffraction lattice parameters are determined and it is found that hexagonal structure of P6/mmm space group is retained for all considered values of x. Hydrogen absorption ability and thermodynamic quantities of the systems are determined by pressure-composition desorption isotherms. The obtained properties are compared with those of previously reported SmNi5 and SmNi4Ga. DFT calculations were performed for selected members of the system and the results are discussed with regard to experiment.

Hydrogen storage; Intermetallic compounds; Metal hydrides; Samarium; DFT; Pressure-composition isotherm

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Podaci o izdanju

38 (27)

2013.

12213-12222

objavljeno

0360-3199

10.1016/j.ijhydene.2013.05.154

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Kemija

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