Thermal decomposition of AlH3 studied by in situ synchrotron X-ray diffraction and thermal desorption spectroscopy

被引：69

作者：

Maehlen, J. P.

Yartys, V. A.

Denys, Rx

Fichtner, M.

Frommen, Ch.

Bulychev, B. M.

Pattison, P.

Emerich, H.

Filinchuk, Y. E.

Chernyshov, D.

机构：

[1] Inst Energy Technol, N-2027 Kjeller, Norway

[2] Natl Acad Sci Ukraine, Physicomech Inst, UA-79601 Lvov, Ukraine

[3] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[4] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[5] ESRF, Swiss Norwegian Beam Line, F-38043 Grenoble, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 446卷

关键词：

hydrogen absorbing materials; crystal structure; phase transitions; synchrotron radiation;

D O I：

10.1016/j.jallcom.2006.11.199

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：

The thermal decomposition of alane was investigated by application of synchrotron X-ray diffraction (SR-XRD) and thermal desorption spectroscopy (TDS). Two polymorphs were studied, alpha- and gamma-AlH3. Activation energies, anisotropic volume expansions, and phase transformation paths were found. In addition, the crystal structure data, including structure of hydrogen sublattice, and small charge transfer from the aluminium towards the hydrogen sites were observed during a high-resolution SR-XRD study of alpha-AlH3. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：280 / 289

页数：10

共 21 条

[1] Kinetics of oxidation of fuel cell cathode materials lanthanum strontium Manganates(III)(IV) at actual working conditions:: In situ powder diffraction studies [J].