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Issue 16, 2013
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Destabilization of Mg–H bonding through nano-interfacial confinement by unsaturated carbon for hydrogen desorption from MgH2

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Abstract

We propose a new mechanism for destabilizing Mg–H bonding by means of a combination of the size effect and MgH2–carbon scaffold interfacial bonding, and experimentally realize low temperature hydrogen release starting from 50 °C using an MgH2@CMK-3 nanoconfinement system (37.5 wt% MgH2 loading amount). Based on computational calculations, it is found that the charge transfer from MgH2 to the carbon scaffold plays a critical role in the significant reduction of thermodynamics of MgH2 dehydrogenation. Our results suggest how to explore an alternative route for the enhancement of nano-interfacial confinement to destabilize the Mg–H hydrogen storage system.

Graphical abstract: Destabilization of Mg–H bonding through nano-interfacial confinement by unsaturated carbon for hydrogen desorption from MgH2

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Supplementary files

Article information


Submitted
27 Nov 2012
Accepted
04 Feb 2013
First published
11 Feb 2013

Phys. Chem. Chem. Phys., 2013,15, 5814-5820
Article type
Paper

Destabilization of Mg–H bonding through nano-interfacial confinement by unsaturated carbon for hydrogen desorption from MgH2

Y. Jia, C. Sun, L. Cheng, M. Abdul Wahab, J. Cui, J. Zou, M. Zhu and X. Yao, Phys. Chem. Chem. Phys., 2013, 15, 5814
DOI: 10.1039/C3CP50515D

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