Catalytically enhanced dehydrogenation of MgH2 by activated carbon supported Pd-VOx (x=2.38) nanocatalyst

Jia, Yi, Zou, Jin and Yao, Xiangdong (2012) Catalytically enhanced dehydrogenation of MgH2 by activated carbon supported Pd-VOx (x=2.38) nanocatalyst. International Journal of Hydrogen Energy, 37 18: 13393-13399. doi:10.1016/j.ijhydene.2012.06.063


Author Jia, Yi
Zou, Jin
Yao, Xiangdong
Title Catalytically enhanced dehydrogenation of MgH2 by activated carbon supported Pd-VOx (x=2.38) nanocatalyst
Formatted title
Catalytically enhanced dehydrogenation of MgH2 by activated carbon supported Pd-VOx (x=2.38) nanocatalyst
Journal name International Journal of Hydrogen Energy   Check publisher's open access policy
ISSN 0360-3199
1879-3487
Publication date 2012-09-01
Sub-type Article (original research)
DOI 10.1016/j.ijhydene.2012.06.063
Volume 37
Issue 18
Start page 13393
End page 13399
Total pages 7
Place of publication London, United Kingdom
Publisher Elsevier
Collection year 2013
Language eng
Formatted abstract
In this paper, we reported that a new multi-component catalyst of activated carbon supported nanosized Pd and VOx (Pd–VOx/AC, x = 2.38) prepared by wet impregnation method exhibited significant catalytic effect on hydrogen desorption of MgH2. It is demonstrated that the nanocomposites of MgH2 + Pd–VOx/AC prepared by ball milling could reduce the desorption temperature, e.g. differential scanning calorimetry (DSC) measurement indicated that the peak desorption temperature decreased ∼40 °C, and also improve the desorption kinetics of MgH2, e.g. desorbed 6.5 wt% hydrogen within 30 min at 300 °C under an initial pressure of 1 kPa. A significant decrease of activation energy (Ea) indicated that Pd–VOx/AC catalyst is highly efficient for MgH2 dehydrogenation, which may be ascribed to the synergistic effect of nanometric bimetals (metal oxides) and nanocarbon.
Keyword Hydrogen storage
Magnesium-based nanocomposites
Pd-VOx/AC
Multi-component catalyst
Synergistic effect
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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