Next Article in Journal
Simulations and Measurements of Human Middle Ear Vibrations Using Multi-Body Systems and Laser-Doppler Vibrometry with the Floating Mass Transducer
Next Article in Special Issue
On the Nature of Voltammetric Signals Originating from Hydrogen Electrosorption into Palladium-Noble Metal Alloys
Previous Article in Journal
CO2 Separation and Capture Properties of Porous Carbonaceous Materials from Leather Residues
Previous Article in Special Issue
The Current Status of Hydrogen Storage Alloy Development for Electrochemical Applications
Materials 2013, 6(10), 4654-4674; doi:10.3390/ma6104654
Review

Thermodynamic Tuning of Mg-Based Hydrogen Storage Alloys: A Review

1,2,* , 1,2
,
1,2
 and
1,2
1 School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China 2 Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, Guangzhou 510641, China
* Author to whom correspondence should be addressed.
Received: 28 August 2013 / Revised: 26 September 2013 / Accepted: 12 October 2013 / Published: 18 October 2013
(This article belongs to the Special Issue Hydrogen Storage Alloys)
Download PDF [1257 KB, uploaded 18 October 2013]

Abstract

Mg-based hydrides are one of the most promising hydrogen storage materials because of their relatively high storage capacity, abundance, and low cost. However, slow kinetics and stable thermodynamics hinder their practical application. In contrast to the substantial progress in the enhancement of the hydrogenation/dehydrogenation kinetics, thermodynamic tuning is still a great challenge for Mg-based alloys. At present, the main strategies to alter the thermodynamics of Mg/MgH2 are alloying, nanostructuring, and changing the reaction pathway. Using these approaches, thermodynamic tuning has been achieved to some extent, but it is still far from that required for practical application. In this article, we summarize the advantages and disadvantages of these strategies. Based on the current progress, finding reversible systems with high hydrogen capacity and effectively tailored reaction enthalpy offers a promising route for tuning the thermodynamics of Mg-based hydrogen storage alloys.
Keywords: Mg-based hydrogen storage alloys; thermodynamics; alloying; nanostructuring; changing reaction pathway Mg-based hydrogen storage alloys; thermodynamics; alloying; nanostructuring; changing reaction pathway
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.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote
MDPI and ACS Style

Zhu, M.; Lu, Y.; Ouyang, L.; Wang, H. Thermodynamic Tuning of Mg-Based Hydrogen Storage Alloys: A Review. Materials 2013, 6, 4654-4674.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here

Comments

Cited By

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert