Next Article in Journal
3-Methylindole-Based Tripodal Tetraphosphine Ruthenium Complexes in N2 Coordination and Reduction and Formic Acid Dehydrogenation
Next Article in Special Issue
Tetrahydroborates: Development and Potential as Hydrogen Storage Medium
Previous Article in Journal
Si–H Bond Activation of a Primary Silane with a Pt(0) Complex: Synthesis and Structures of Mononuclear (Hydrido)(dihydrosilyl) Platinum(II) Complexes
Previous Article in Special Issue
Hydrogen Storage Stability of Nanoconfined MgH2 upon Cycling
Article Menu
Issue 4 (December) cover image

Export Article

Open AccessArticle
Inorganics 2017, 5(4), 71; https://doi.org/10.3390/inorganics5040071

Unique Hydrogen Desorption Properties of LiAlH4/h-BN Composites

Graduate School of Engineering, Hokkaido University, N-13, W-8, Sapporo 060-8278, Japan
*
Author to whom correspondence should be addressed.
Received: 30 September 2017 / Revised: 19 October 2017 / Accepted: 23 October 2017 / Published: 25 October 2017
(This article belongs to the Special Issue Functional Materials Based on Metal Hydrides)
View Full-Text   |   Download PDF [4139 KB, uploaded 26 October 2017]   |  

Abstract

Hexagonal boron nitride (h-BN) is known as an effective additive to improve the hydrogen de/absorption properties of hydrogen storage materials consisting of light elements. Herein, we report the unique hydrogen desorption properties of LiAlH4/h-BN composites, which were prepared by ball-milling. The desorption profiles of the composite indicated the decrease of melting temperature of LiAlH4, the delay of desorption kinetics in the first step, and the enhancement of the kinetics in the second step, compared with milled LiAlH4. Li3AlH6 was also formed in the composite after desorption in the first step, suggesting h-BN would have a catalytic effect on the desorption kinetics of Li3AlH6. Finally, the role of h-BN on the desorption process of LiAlH4 was discussed by comparison with the desorption properties of LiAlH4/X (X = graphite, LiCl and LiI) composites, suggesting the enhancement of Li ion mobility in the LiAlH4/h-BN composite. View Full-Text
Keywords: alanate; h-BN; hydrogen storage; catalyst; Li ion mobility alanate; h-BN; hydrogen storage; catalyst; Li ion mobility
Figures

Figure 1

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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Nakagawa, Y.; Isobe, S.; Ohki, T.; Hashimoto, N. Unique Hydrogen Desorption Properties of LiAlH4/h-BN Composites. Inorganics 2017, 5, 71.

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

1

Comments

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