The crystal structure of δ-VOPO4 and its relationship to ω-VOPO4

被引：38
|
作者：
Girgsdies, Frank [1 ]
Schneider, Matthias [2 ]
Brueckner, Angelika [2 ]
Ressler, Thorsten [1 ]
Schloegl, Robert [1 ]
机构：
[1] Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, D-14195 Berlin, Germany
[2] Univ Rostock, Leibniz Inst Katalyse eV, D-12489 Berlin, Germany
来源：
SOLID STATE SCIENCES | 2009年 / 11卷 / 07期
关键词：
Vanadium; Phosphate; Crystal structure; Powder diffraction; ab initio structure determination; Phase transition; BUTANE OXIDATION; 4; V; PHASES; DIFFRACTION; PERFORMANCE; PHOSPHATES; CATALYSTS; CATHODE; SYSTEM; VOPO4;
D O I：
10.1016/j.solidstatesciences.2009.03.017
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The crystal structure of delta-VOPO4 was determined from powder X-ray diffraction data in the tetragonal space group P4(2)/mbc (No. 135) with a=9.0547(7) angstrom and c = 8.6080(8) angstrom. The structure is found to be closely related to that of omega-VOPO4, thus disproving two traditional structure hypotheses commonly found in the literature. The structural relationship between the two phases is discussed in the light of a recently observed fast phase transition from omega- to delta-VOPO4. (C) 2009 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：1258 / 1264
页数：7
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