FORMATION, CHARACTERIZATION AND SINTERING OF ALKOXY-DERIVED BISMUTH VANADATE

被引:109
作者
HIROTA, K [1 ]
KOMATSU, G [1 ]
YAMASHITA, M [1 ]
TAKEMURA, H [1 ]
YAMAGUCHI, O [1 ]
机构
[1] DOSHISHA UNIV,FAC ENGN,ELECTROCHEM LAB,KYOTO 602,JAPAN
关键词
ALKOXIDES; BISMUTH; VANADATES;
D O I
10.1016/0025-5408(92)90177-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Monoclinic BiVO4 is formed by the hydrolysis of bismuth and vanadyl double alkoxide, followed by washing and drying. Its average particle size is almost-equal-to 45 nm. The chemical structure is described by the formula Bi(VO4). Sintered pellets with nearly theoretical density are prepared by hot pressing for 2 h at 750-degrees-C and 29.4 MPa. The electrical conductivity of the pellets has been measured at 150-degrees to 550-degrees-C. Data are interpreted in terms of ionic conductivity due to oxygen ion vacancies.
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页码:823 / 830
页数:8
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