Hydrogen storage properties of MgH2-SiC composites

A. Ranjbar; Z. P. Guo; X. B. Yu; D. Wexler; A. Calka; C. J. Kim; H. K. Liu

doi:10.1016/j.matchemphys.2008.09.001

Hydrogen storage properties of MgH₂-SiC composites

A. Ranjbar
, Z. P. Guo
, X. B. Yu
, D. Wexler
, A. Calka
, C. J. Kim
, H. K. Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

77 Citations (Scopus)

Abstract

This paper describes the effects of the addition of SiC on the hydrogen storage properties of MgH₂ synthesized by ball milling. Transmission electron microscope images confirm that ultra-fine SiC particles are uniformly dispersed within the MgH₂ matrix. It was found that the hydrogen absorption/desorption kinetics of MgH₂ can be improved by the addition of a small amount of SiC (5 wt%). Higher level doping introduces negative effects, such as lower capacity, slower absorption/desorption rates, and higher hysteresis, compared to samples with lower SiC doping levels. It is believed that SiC can help to break up particles, reduce the grain size, and improve the surface area of MgH₂, however, large amounts of SiC could also block the hydrogen diffusion path to some extent, which degrades the hydrogen absorption/desorption performance. © 2008 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	168-172
Journal	Materials Chemistry and Physics
Volume	114
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2008.09.001
Publication status	Published - 15 Mar 2009
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was partially supported by the Australian CSIRO Flagship Program, the Australian Research Council through a Discovery project (DP0771193), and the second stage of the BK 21 Project, Korea.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

Ball-milling
Hydrogen storage
Kinetics
MgH2-SiC

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10.1016/j.matchemphys.2008.09.001

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Cite this

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title = "Hydrogen storage properties of MgH2-SiC composites",

abstract = "This paper describes the effects of the addition of SiC on the hydrogen storage properties of MgH2 synthesized by ball milling. Transmission electron microscope images confirm that ultra-fine SiC particles are uniformly dispersed within the MgH2 matrix. It was found that the hydrogen absorption/desorption kinetics of MgH2 can be improved by the addition of a small amount of SiC (5 wt\%). Higher level doping introduces negative effects, such as lower capacity, slower absorption/desorption rates, and higher hysteresis, compared to samples with lower SiC doping levels. It is believed that SiC can help to break up particles, reduce the grain size, and improve the surface area of MgH2, however, large amounts of SiC could also block the hydrogen diffusion path to some extent, which degrades the hydrogen absorption/desorption performance. {\textcopyright} 2008 Elsevier B.V. All rights reserved.",

keywords = "Ball-milling, Hydrogen storage, Kinetics, MgH2-SiC",

author = "A. Ranjbar and Guo, \{Z. P.\} and Yu, \{X. B.\} and D. Wexler and A. Calka and Kim, \{C. J.\} and Liu, \{H. K.\}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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doi = "10.1016/j.matchemphys.2008.09.001",

language = "English",

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TY - JOUR

T1 - Hydrogen storage properties of MgH2-SiC composites

AU - Ranjbar, A.

AU - Guo, Z. P.

AU - Yu, X. B.

AU - Wexler, D.

AU - Calka, A.

AU - Kim, C. J.

AU - Liu, H. K.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2009/3/15

Y1 - 2009/3/15

N2 - This paper describes the effects of the addition of SiC on the hydrogen storage properties of MgH2 synthesized by ball milling. Transmission electron microscope images confirm that ultra-fine SiC particles are uniformly dispersed within the MgH2 matrix. It was found that the hydrogen absorption/desorption kinetics of MgH2 can be improved by the addition of a small amount of SiC (5 wt%). Higher level doping introduces negative effects, such as lower capacity, slower absorption/desorption rates, and higher hysteresis, compared to samples with lower SiC doping levels. It is believed that SiC can help to break up particles, reduce the grain size, and improve the surface area of MgH2, however, large amounts of SiC could also block the hydrogen diffusion path to some extent, which degrades the hydrogen absorption/desorption performance. © 2008 Elsevier B.V. All rights reserved.

AB - This paper describes the effects of the addition of SiC on the hydrogen storage properties of MgH2 synthesized by ball milling. Transmission electron microscope images confirm that ultra-fine SiC particles are uniformly dispersed within the MgH2 matrix. It was found that the hydrogen absorption/desorption kinetics of MgH2 can be improved by the addition of a small amount of SiC (5 wt%). Higher level doping introduces negative effects, such as lower capacity, slower absorption/desorption rates, and higher hysteresis, compared to samples with lower SiC doping levels. It is believed that SiC can help to break up particles, reduce the grain size, and improve the surface area of MgH2, however, large amounts of SiC could also block the hydrogen diffusion path to some extent, which degrades the hydrogen absorption/desorption performance. © 2008 Elsevier B.V. All rights reserved.

KW - Ball-milling

KW - Hydrogen storage

KW - Kinetics

KW - MgH2-SiC

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U2 - 10.1016/j.matchemphys.2008.09.001

DO - 10.1016/j.matchemphys.2008.09.001

M3 - RGC 21 - Publication in refereed journal

SN - 0254-0584

VL - 114

SP - 168

EP - 172

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -