Effects of Ni addition on hydrogen storage properties of Mg 17Al12 alloy

Sheng Long Lee; Che Wei Hsu; Fu Kai Hsu; Cheng Yu Chou; Chih Kuang Lin; Chia Wang Weng

doi:10.1016/j.matchemphys.2010.11.019

Effects of Ni addition on hydrogen storage properties of Mg ₁₇Al₁₂ alloy

Sheng Long Lee, Che Wei Hsu, Fu Kai Hsu, Cheng Yu Chou, Chih Kuang Lin, Chia Wang Weng

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The present study reports the effect of Ni addition on the structure and hydrogen storage properties of Mg₁₇Al₁₂ alloy. The Mg ₁₇Al₁₂ is synthesized by conventional melting process, and then ball-milled with Ni powder to form Mg₁₇Al₁₂-X wt.% Ni (X = 0, 10, 20) alloys. XRD results showed that the formation of stable Al₃Ni and Al₃Ni₂ phases in the Ni-containing alloys after hydrogenation results in the production of surplus Mg during the desorption process. The catalytic effect of surplus Mg on the Ni-containing alloy is responsible for an enhancement of the hydrogen capacity and absorption rate, compared with ball-milled Mg₁₇Al₁₂ below 300 °C.

Original language	English
Pages (from-to)	319-324
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	126
Issue number	1-2
DOIs	https://doi.org/10.1016/j.matchemphys.2010.11.019
State	Published - 15 Mar 2011

Keywords

Absorption
Alloy
Intermetallic compounds

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10.1016/j.matchemphys.2010.11.019

Cite this

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title = "Effects of Ni addition on hydrogen storage properties of Mg 17Al12 alloy",

abstract = "The present study reports the effect of Ni addition on the structure and hydrogen storage properties of Mg17Al12 alloy. The Mg 17Al12 is synthesized by conventional melting process, and then ball-milled with Ni powder to form Mg17Al12-X wt.% Ni (X = 0, 10, 20) alloys. XRD results showed that the formation of stable Al3Ni and Al3Ni2 phases in the Ni-containing alloys after hydrogenation results in the production of surplus Mg during the desorption process. The catalytic effect of surplus Mg on the Ni-containing alloy is responsible for an enhancement of the hydrogen capacity and absorption rate, compared with ball-milled Mg17Al12 below 300 °C.",

keywords = "Absorption, Alloy, Intermetallic compounds",

author = "Lee, {Sheng Long} and Hsu, {Che Wei} and Hsu, {Fu Kai} and Chou, {Cheng Yu} and Lin, {Chih Kuang} and Weng, {Chia Wang}",

note = "Funding Information: The authors would like to thank the National Science Council of Taiwan under Contract NSC 98-2622-E-008-007-CC3 for the financial support of this research. ",

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T1 - Effects of Ni addition on hydrogen storage properties of Mg 17Al12 alloy

AU - Lee, Sheng Long

AU - Hsu, Che Wei

AU - Hsu, Fu Kai

AU - Chou, Cheng Yu

AU - Lin, Chih Kuang

AU - Weng, Chia Wang

N1 - Funding Information: The authors would like to thank the National Science Council of Taiwan under Contract NSC 98-2622-E-008-007-CC3 for the financial support of this research.

PY - 2011/3/15

Y1 - 2011/3/15

N2 - The present study reports the effect of Ni addition on the structure and hydrogen storage properties of Mg17Al12 alloy. The Mg 17Al12 is synthesized by conventional melting process, and then ball-milled with Ni powder to form Mg17Al12-X wt.% Ni (X = 0, 10, 20) alloys. XRD results showed that the formation of stable Al3Ni and Al3Ni2 phases in the Ni-containing alloys after hydrogenation results in the production of surplus Mg during the desorption process. The catalytic effect of surplus Mg on the Ni-containing alloy is responsible for an enhancement of the hydrogen capacity and absorption rate, compared with ball-milled Mg17Al12 below 300 °C.

AB - The present study reports the effect of Ni addition on the structure and hydrogen storage properties of Mg17Al12 alloy. The Mg 17Al12 is synthesized by conventional melting process, and then ball-milled with Ni powder to form Mg17Al12-X wt.% Ni (X = 0, 10, 20) alloys. XRD results showed that the formation of stable Al3Ni and Al3Ni2 phases in the Ni-containing alloys after hydrogenation results in the production of surplus Mg during the desorption process. The catalytic effect of surplus Mg on the Ni-containing alloy is responsible for an enhancement of the hydrogen capacity and absorption rate, compared with ball-milled Mg17Al12 below 300 °C.

KW - Absorption

KW - Alloy

KW - Intermetallic compounds

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U2 - 10.1016/j.matchemphys.2010.11.019

DO - 10.1016/j.matchemphys.2010.11.019

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SN - 0254-0584

VL - 126

SP - 319

EP - 324

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1-2

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