Synthesis, structure and thermal contraction of a new low-temperature polymorph of ZrMo2O8

被引:33
作者
Allen, S [1 ]
Warmingham, NR [1 ]
Gover, RKB [1 ]
Evans, JSO [1 ]
机构
[1] Univ Durham, Dept Chem, Sci Labs, Durham DH1 3LE, England
关键词
D O I
10.1021/cm034397s
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
We report the synthesis and characterization of a new negative thermal expansion polymorph of zirconium molybdate, LT-ZrMo2O8, and suggest a possible topotactic mechanism for its formation from a precursor phase. The successful identification of this phase sheds new light on the pathway by which cubic ZrMo2O8 can be synthesized and allows one to quantify this process using in situ diffraction experiments for the first time.
引用
收藏
页码:3406 / 3410
页数:5
相关论文
共 33 条
[1]   NEW STRUCTURE OF HIGH-TEMPERATURE ZIRCONIUM MOLYBDATE [J].
AURAY, M ;
QUARTON, M ;
TARTE, P .
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1986, 42 :257-259
[2]  
AURAY M, 1989, POWDER DIFFR, V4, P29
[3]  
*BRUK AXS LTD, 2000, TOP V2 0 GEN PROF ST
[4]   CONDENSED PHASE RELATIONS IN SYSTEMS ZRO2-WO2-WO3 AND HFO2-WO2-WO3 [J].
CHANG, LLY ;
SCROGER, MG ;
PHILLIPS, B .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1967, 50 (04) :211-&
[5]   PREPARATION AND CRYSTAL-STRUCTURE OF A BASIC ZIRCONIUM MOLYBDATE AND ITS RELATIONSHIP TO ION-EXCHANGE GELS [J].
CLEARFIELD, A ;
BLESSING, RH .
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1972, 34 (08) :2643-+
[6]   Low-temperature synthesis of ZrW2O8 and Mo-substituted ZrW2O8 [J].
Closmann, C ;
Sleight, AW ;
Haygarth, JC .
JOURNAL OF SOLID STATE CHEMISTRY, 1998, 139 (02) :424-426
[7]   Phonon density of states and negative thermal expansion in ZrW2O8 [J].
Ernst, G ;
Broholm, C ;
Kowach, GR ;
Ramirez, AP .
NATURE, 1998, 396 (6707) :147-149
[8]   Structural phase transitions and negative thermal expansion in Sc2(MoO4)3 [J].
Evans, JSO ;
Mary, TA .
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 2000, 2 (01) :143-151
[9]   Compressibility, phase transitions, and oxygen migration in zirconium tungstate, ZrW2O8 [J].
Evans, JSO ;
Hu, Z ;
Jorgensen, JD ;
Argyriou, DN ;
Short, S ;
Sleight, AW .
SCIENCE, 1997, 275 (5296) :61-65
[10]   Negative thermal expansion materials [J].
Evans, JSO .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1999, (19) :3317-3326