3CaH 2 + 4MgB 2 + CaF 2 reactive hydride composite as a potential hydrogen storage material: Hydrogenation and dehydrogenation pathway

Suarez Alcantara, K.; Ramallo Lopez, Jose Martin; Boesenberg, U.; Saldan, I.; Pistidda, C.; Requejo, Felix Gregorio; Jensen, T.; Cerenius, Y.; Sørby, M.; Avila, J.; Bellosta von Colbe, J.; Taube, K.; Klassen, Thomas; Dornheim, M.

doi:10.1021/jp211620h

Artículo

3CaH 2 + 4MgB 2 + CaF 2 reactive hydride composite as a potential hydrogen storage material: Hydrogenation and dehydrogenation pathway

Suarez Alcantara, K.; Ramallo Lopez, Jose Martin Icon

; Boesenberg, U.; Saldan, I.; Pistidda, C.; Requejo, Felix Gregorio Icon

; Jensen, T.; Cerenius, Y.; Sørby, M.; Avila, J.; Bellosta von Colbe, J.; Taube, K.; Klassen, Thomas; Dornheim, M.

Fecha de publicación: 16/03/2012

Editorial: American Chemical Society

Revista: Journal of Physical Chemistry C

ISSN: 1932-7447

Idioma: Inglés

Tipo de recurso: Artículo publicado

Clasificación temática:

Otras Ingeniería Química

Resumen

A reactive hydride composite (RHC) with initial composition 3CaH 2 + 4MgB 2 + CaF 2 was studied by in situ synchrotron radiation powder X-ray diffraction (SR-PXD) and X-ray absorption near edge structure (XANES) at the B K-edge and at the Ca K-edge. The hydrogenation reaction proceeds by an unknown intermediate. No evidence of intermediates was observed during the dehydrogenation reaction. B and Ca K-edge XANES results hint to a closed interaction of CaF 2 and Ca(BH 4) 2. The main function of CaF 2 in the 3CaH 2 + 4MgB 2 + CaF 2 RHC is as a dopant for the hydrogenation and dehydrogenation reactions.

Palabras clave: Hydrogen Storage , Caf2 , Hydrogenation , Dehydrogenation

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/81023

URL: https://pubs.acs.org/doi/full/10.1021/jp211620h

DOI: http://dx.doi.org/10.1021/jp211620h

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Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.

Citación

Suarez Alcantara, K.; Ramallo Lopez, Jose Martin; Boesenberg, U.; Saldan, I.; Pistidda, C.; et al.; 3CaH 2 + 4MgB 2 + CaF 2 reactive hydride composite as a potential hydrogen storage material: Hydrogenation and dehydrogenation pathway; American Chemical Society; Journal of Physical Chemistry C; 116; 12; 16-3-2012; 7207-7212

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