Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag and Au) with MoSi2-type structure (C11b)

Naruki Endo; Satoshi Kameoka; An Pang Tsai; Zou Lingling; Toshiya Hirata; Chikashi Nishimura

doi:10.1016/j.jallcom.2009.10.045

Hydrogen absorption in the intermetallic compounds Zr₂TM (TM = Cu, Ag and Au) with MoSi₂-type structure (C11_b)

Naruki Endo, Satoshi Kameoka, An Pang Tsai, Zou Lingling, Toshiya Hirata, Chikashi Nishimura

IMRAM - Division of Inorganic Material Research

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

3 Citations (Scopus)

Abstract

Hydrogen absorption in the intermetallic compounds Zr₂TM (TM = Cu, Ag, Au) with MoSi₂-type structure was characterized by differential scanning calorimetry (DSC) under hydrogen, hydrogen-storage capacity measurement and X-ray diffraction (XRD). The amount of heat for the exothermic peak in DSC due to hydrogen absorption and the maximum hydrogen-storage capacity increased in the order of Zr₂Cu > Zr₂Ag ≫ Zr₂Au. XRD revealed that Zr₂Cu and Zr₂Ag could decompose into Cu or Ag and ZrH_x (x ∼ 2), while Zr₂Au can form a solid solution with hydrogen without decomposition. These findings were well explained based on the magnitude and/or sign of the estimated enthalpy change for the decomposition of Zr₂TM.

Original language	English
Pages (from-to)	L24-L27
Journal	Journal of Alloys and Compounds
Volume	490
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2009.10.045
Publication status	Published - 2010 Feb 4

Keywords

Change of enthalpy
Decomposition
Hydrogen absorption
Intermetallic compounds

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10.1016/j.jallcom.2009.10.045

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title = "Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag and Au) with MoSi2-type structure (C11b)",

abstract = "Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag, Au) with MoSi2-type structure was characterized by differential scanning calorimetry (DSC) under hydrogen, hydrogen-storage capacity measurement and X-ray diffraction (XRD). The amount of heat for the exothermic peak in DSC due to hydrogen absorption and the maximum hydrogen-storage capacity increased in the order of Zr2Cu > Zr2Ag ≫ Zr2Au. XRD revealed that Zr2Cu and Zr2Ag could decompose into Cu or Ag and ZrHx (x ∼ 2), while Zr2Au can form a solid solution with hydrogen without decomposition. These findings were well explained based on the magnitude and/or sign of the estimated enthalpy change for the decomposition of Zr2TM.",

keywords = "Change of enthalpy, Decomposition, Hydrogen absorption, Intermetallic compounds",

author = "Naruki Endo and Satoshi Kameoka and Tsai, {An Pang} and Zou Lingling and Toshiya Hirata and Chikashi Nishimura",

year = "2010",

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T1 - Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag and Au) with MoSi2-type structure (C11b)

AU - Endo, Naruki

AU - Kameoka, Satoshi

AU - Tsai, An Pang

AU - Lingling, Zou

AU - Hirata, Toshiya

AU - Nishimura, Chikashi

PY - 2010/2/4

Y1 - 2010/2/4

N2 - Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag, Au) with MoSi2-type structure was characterized by differential scanning calorimetry (DSC) under hydrogen, hydrogen-storage capacity measurement and X-ray diffraction (XRD). The amount of heat for the exothermic peak in DSC due to hydrogen absorption and the maximum hydrogen-storage capacity increased in the order of Zr2Cu > Zr2Ag ≫ Zr2Au. XRD revealed that Zr2Cu and Zr2Ag could decompose into Cu or Ag and ZrHx (x ∼ 2), while Zr2Au can form a solid solution with hydrogen without decomposition. These findings were well explained based on the magnitude and/or sign of the estimated enthalpy change for the decomposition of Zr2TM.

AB - Hydrogen absorption in the intermetallic compounds Zr2TM (TM = Cu, Ag, Au) with MoSi2-type structure was characterized by differential scanning calorimetry (DSC) under hydrogen, hydrogen-storage capacity measurement and X-ray diffraction (XRD). The amount of heat for the exothermic peak in DSC due to hydrogen absorption and the maximum hydrogen-storage capacity increased in the order of Zr2Cu > Zr2Ag ≫ Zr2Au. XRD revealed that Zr2Cu and Zr2Ag could decompose into Cu or Ag and ZrHx (x ∼ 2), while Zr2Au can form a solid solution with hydrogen without decomposition. These findings were well explained based on the magnitude and/or sign of the estimated enthalpy change for the decomposition of Zr2TM.

KW - Change of enthalpy

KW - Decomposition

KW - Hydrogen absorption

KW - Intermetallic compounds

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DO - 10.1016/j.jallcom.2009.10.045

M3 - Letter

AN - SCOPUS:74149083694

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VL - 490

SP - L24-L27

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Hydrogen absorption in the intermetallic compounds Zr₂TM (TM = Cu, Ag and Au) with MoSi₂-type structure (C11_b)

Abstract

Keywords

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