Jump to main content
Jump to site search

Issue 8, 2011
Previous Article Next Article

The impact of carbon materials on the hydrogen storage properties of light metal hydrides

Author affiliations

Abstract

The safe and efficient storage of hydrogen is still one of the remaining challenges towards fuel cell powered cars. Metal hydrides are a promising class of materials as they allow the storage of large amounts of hydrogen in a small volume at room temperature and low pressures. However, usually the kinetics of hydrogen release and uptake and the thermodynamic properties do not satisfy the requirements for practical applications. Therefore current research focuses on catalysis and the thermodynamic tailoring of metal hydride systems. Surprisingly, carbon materials used as additive or support are very effective to improve the hydrogen storage properties of metal hydrides allowing fast kinetics and even a change in the thermodynamic properties. Even though the underlying mechanisms are not always well understood, the beneficial effect is probably related to the peculiar structure of the carbon materials. This feature article gives an introduction to the different carbon materials, an overview of the preparation strategies to synthesize carbon/hydride nanocomposites, and highlights the beneficial effect of carbon by discussing two important hydrides: MgH2 and NaAlH4.

Graphical abstract: The impact of carbon materials on the hydrogen storage properties of light metal hydrides

Back to tab navigation

Publication details

The article was received on 09 Aug 2010, accepted on 28 Sep 2010 and first published on 09 Nov 2010


Article type: Feature Article
DOI: 10.1039/C0JM02593C
Citation: J. Mater. Chem., 2011,21, 2417-2427
  •   Request permissions

    The impact of carbon materials on the hydrogen storage properties of light metal hydrides

    P. Adelhelm and P. E. de Jongh, J. Mater. Chem., 2011, 21, 2417
    DOI: 10.1039/C0JM02593C

Search articles by author

Spotlight

Advertisements