Hydrogen storage properties of LaMg2Ni prepared by induction melting

L. Z. Ouyang; L. Yao; H. W. Dong; L. Q. Li; M. Zhu

doi:10.1016/j.jallcom.2009.06.005

Hydrogen storage properties of LaMg₂Ni prepared by induction melting

L. Z. Ouyang, L. Yao, H. W. Dong, L. Q. Li, M. Zhu

材料科学与工程学院

South China University of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

LaMg₂Ni compound was prepared by induction melting, and its phase transformation during hydriding/dehydriding as well as hydrogen storage properties were investigated by X-ray diffraction (XRD) and pressure-composition isotherm (PCI) measurement. It was found that the reversible hydrogen storage capacity of LaMg₂Ni alloy reaches 1.96 wt.%. The enthalpy and entropy derived from the van't Hoff equation for hydriding/dehydriding are -51 kJ/mol H₂, -105 J/K mol H₂ and 79 kJ/mol H₂, 141 J/K mol H₂, respectively. The kinetic curve for the hydriding at 561 K was well fitted by the Avrami-Erofeev equation.

源语言	英语
页（从-至）	507-509
页数	3
期刊	Journal of Alloys and Compounds
卷	485
期	1-2
DOI	https://doi.org/10.1016/j.jallcom.2009.06.005
出版状态	已出版 - 19 10月 2009

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10.1016/j.jallcom.2009.06.005

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title = "Hydrogen storage properties of LaMg2Ni prepared by induction melting",

abstract = "LaMg2Ni compound was prepared by induction melting, and its phase transformation during hydriding/dehydriding as well as hydrogen storage properties were investigated by X-ray diffraction (XRD) and pressure-composition isotherm (PCI) measurement. It was found that the reversible hydrogen storage capacity of LaMg2Ni alloy reaches 1.96 wt.%. The enthalpy and entropy derived from the van't Hoff equation for hydriding/dehydriding are -51 kJ/mol H2, -105 J/K mol H2 and 79 kJ/mol H2, 141 J/K mol H2, respectively. The kinetic curve for the hydriding at 561 K was well fitted by the Avrami-Erofeev equation.",

keywords = "Hydrogen storage, Magnesium-based alloys, Rare earth metals",

author = "Ouyang, {L. Z.} and L. Yao and Dong, {H. W.} and Li, {L. Q.} and M. Zhu",

year = "2009",

month = oct,

day = "19",

doi = "10.1016/j.jallcom.2009.06.005",

language = "英语",

volume = "485",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Hydrogen storage properties of LaMg2Ni prepared by induction melting

AU - Ouyang, L. Z.

AU - Yao, L.

AU - Dong, H. W.

AU - Li, L. Q.

AU - Zhu, M.

PY - 2009/10/19

Y1 - 2009/10/19

N2 - LaMg2Ni compound was prepared by induction melting, and its phase transformation during hydriding/dehydriding as well as hydrogen storage properties were investigated by X-ray diffraction (XRD) and pressure-composition isotherm (PCI) measurement. It was found that the reversible hydrogen storage capacity of LaMg2Ni alloy reaches 1.96 wt.%. The enthalpy and entropy derived from the van't Hoff equation for hydriding/dehydriding are -51 kJ/mol H2, -105 J/K mol H2 and 79 kJ/mol H2, 141 J/K mol H2, respectively. The kinetic curve for the hydriding at 561 K was well fitted by the Avrami-Erofeev equation.

AB - LaMg2Ni compound was prepared by induction melting, and its phase transformation during hydriding/dehydriding as well as hydrogen storage properties were investigated by X-ray diffraction (XRD) and pressure-composition isotherm (PCI) measurement. It was found that the reversible hydrogen storage capacity of LaMg2Ni alloy reaches 1.96 wt.%. The enthalpy and entropy derived from the van't Hoff equation for hydriding/dehydriding are -51 kJ/mol H2, -105 J/K mol H2 and 79 kJ/mol H2, 141 J/K mol H2, respectively. The kinetic curve for the hydriding at 561 K was well fitted by the Avrami-Erofeev equation.

KW - Hydrogen storage

KW - Magnesium-based alloys

KW - Rare earth metals

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U2 - 10.1016/j.jallcom.2009.06.005

DO - 10.1016/j.jallcom.2009.06.005

M3 - 文章

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SN - 0925-8388

VL - 485

SP - 507

EP - 509

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Hydrogen storage properties of LaMg2Ni prepared by induction melting

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Hydrogen storage properties of LaMg₂Ni prepared by induction melting