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

Jia Yi; Chenghua Sun; Lina Cheng; Mohammad A Wahab; Jie Cui; Jin Zou; Min Zhu; Xiangdong Yao

doi:10.1039/c3cp50515d

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

Journal article

Peer reviewed

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

Jia Yi, Chenghua Sun, Lina Cheng, Mohammad A Wahab, Jie Cui, Jin Zou, Min Zhu and Xiangdong Yao

Physical Chemistry Chemical Physics, Vol.15, pp.5814-5820

2013

DOI: https://doi.org/10.1039/c3cp50515d

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Abstract

Physical Sciences

Chemical Sciences

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.

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Title: Destabilization of Mg–H bonding through nano-interfacial confinement by unsaturated carbon for hydrogen desorption from MgH2
Authors: Jia Yi (Author) - University of Queensland
Chenghua Sun (Author) - University of Queensland
Lina Cheng (Author) - University of Queensland
Mohammad A Wahab (Author) - University of Queensland
Jie Cui (Author) - South China University of Technology, China
Jin Zou (Author) - University of Queensland
Min Zhu (Author) - South China University of Technology, China
Xiangdong Yao (Author) - University of Queensland
Publication details: Physical Chemistry Chemical Physics, Vol.15, pp.5814-5820
Publisher: Royal Society of Chemistry (R S C) Publications
Date published: 2013
DOI: 10.1039/c3cp50515d
ISSN: 1463-9076
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99451173102621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Physical; Physics, Atomic, Molecular & Chemical

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