Next Article in Journal / Special Issue
Investigation of the Reversible Lithiation of an Oxide Free Aluminum Anode by a LiBH4 Solid State Electrolyte
Previous Article in Journal / Special Issue
Thermodynamic Properties and Reversible Hydrogenation of LiBH4–Mg2FeH6 Composite Materials
Article Menu
Issue 4 (December) cover image

Export Article

Open AccessArticle
Inorganics 2017, 5(4), 82;

Dehydrogenation of Surface-Oxidized Mixtures of 2LiBH4 + Al/Additives (TiF3 or CeO2)

Morelia Unit of the Materials Research Institute of the National Autonomous University of Mexico, Antigua Carretera a Pátzcuaro 8701, Col. Ex Hacienda de San José de la Huerta, Morelia 58190, Michoacán, Mexico
Author to whom correspondence should be addressed.
Received: 28 September 2017 / Revised: 9 November 2017 / Accepted: 16 November 2017 / Published: 21 November 2017
(This article belongs to the Special Issue Functional Materials Based on Metal Hydrides)
Full-Text   |   PDF [2606 KB, uploaded 21 November 2017]   |  


Research for suitable hydrogen storage materials is an important ongoing subject. LiBH4–Al mixtures could be attractive; however, several issues must be solved. Here, the dehydrogenation reactions of surface-oxidized 2LiBH4 + Al mixtures plus an additive (TiF3 or CeO2) at two different pressures are presented. The mixtures were produced by mechanical milling and handled under welding-grade argon. The dehydrogenation reactions were studied by means of temperature programmed desorption (TPD) at 400 °C and at 3 or 5 bar initial hydrogen pressure. The milled and dehydrogenated materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transformed infrared spectroscopy (FT-IR) The additives and the surface oxidation, promoted by the impurities in the welding-grade argon, induced a reduction in the dehydrogenation temperature and an increase in the reaction kinetics, as compared to pure (reported) LiBH4. The dehydrogenation reactions were observed to take place in two main steps, with onsets at 100 °C and 200–300 °C. The maximum released hydrogen was 9.3 wt % in the 2LiBH4 + Al/TiF3 material, and 7.9 wt % in the 2LiBH4 + Al/CeO2 material. Formation of CeB6 after dehydrogenation of 2LiBH4 + Al/CeO2 was confirmed. View Full-Text
Keywords: hydrogen storage; borohydrides; reactive mixtures hydrogen storage; borohydrides; reactive mixtures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Carrillo-Bucio, J.L.; Tena-García, J.R.; Suárez-Alcántara, K. Dehydrogenation of Surface-Oxidized Mixtures of 2LiBH4 + Al/Additives (TiF3 or CeO2). Inorganics 2017, 5, 82.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Inorganics EISSN 2304-6740 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top