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

被引：5

作者：

Endo, Naruki ^{[1
]}

Kameoka, Satoshi ^{[2
]}

Tsai, An Pang ^{[2
,3
]}

Zou Lingling ^{[3
]}

Hirata, Toshiya ^{[3
]}

Nishimura, Chikashi ^{[3
]}

机构：

[1] Tohoku Univ, Dept Mat Proc, Grad Sch Engn, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 490卷 / 1-2期

关键词：

Intermetallic compounds; Hydrogen absorption; Decomposition; Change of enthalpy; ALLOYS;

D O I：

10.1016/j.jallcom.2009.10.045

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 similar to 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. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：L24 / L27

页数：4

共 10 条

[1]

GOEDKOOP JA, 1955, ACTA CRYSTALLOGR, V118, P8

[2] Calorimetric investigation of the hydrogen interaction with ZrCrFe1.2 [J].

Ivanova, TV ;

Verbetsky, VN .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :34-37

[3] REACTION OF GASEOUS-HYDROGEN WITH CUZR2 AT TEMPERATURES ABOVE 500-DEGREES-C [J].

KADEL, R ;

WEISS, A .

JOURNAL OF THE LESS-COMMON METALS, 1979, 65 (01) :89-101

[4] SOLUBILITY OF HYDROGEN IN CUTI, CUTI2, PDTI2, AND CU0.5PD0.5TI2. REACTIONS OF TITANIUM-ALLOYS WITH GASEOUS HYDROGEN [J].

KADEL, R ;

WEISS, A .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1978, 82 (12) :1290-1302

[5]

Libowitz G.G., 1965, SOLID STATE CHEM BIN

[6]

Louër D, 2006, Z KRISTALLOGR, P225

[7] HYDROGEN ABSORPTION IN SOME A2B INTERMETALLIC COMPOUNDS WITH THE MOSI2-TYPE STRUCTURE (C11B) [J].

MAELAND, AJ ;

LIBOWITZ, GG .

JOURNAL OF THE LESS-COMMON METALS, 1980, 74 (02) :295-300

[8] HEAT OF FORMATION OF SOLID ALLOYS [J].

MIEDEMA, AR ;

BOOM, R ;

DEBOER, FR .

JOURNAL OF THE LESS-COMMON METALS, 1975, 41 (02) :283-298

[9]

PEBLER A, 1966, ELECTROCHEM TECHNOL, V4, P211

[10]

YAMANAKA K, 1975, J CHEM SOC JPN, V8, P1267

← 1 →