Growth of Millimeter-sized Platy Single Crystals of NaTaO3 from Na2MoO4 Flux

被引:6
作者
Suzuki, Sayaka [1 ]
Saito, Haruka [1 ]
Yubuta, Kunio [2 ]
Oishi, Shuji [1 ,3 ]
Teshima, Katsuya [1 ,3 ,4 ]
机构
[1] Shinshu Univ, Fac Engn, Dept Mat Chem, 4-17-1 Wakasato, Nagano 3808553, Japan
[2] Tohoku Univ, Inst Mat Res, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan
[3] Nagano Prefecture Nanshin Inst Technol, 8304-190 Minamiminowa, Nagano 3994511, Japan
[4] Shinshu Univ, Res Initiat Supramat, 4-17-1 Wakasato, Nagano 3808553, Japan
关键词
TANTALATE PHOTOCATALYSTS; STOICHIOMETRIC LITAO3; DOPED NATAO3; POWDER; KTAO3; FILMS; H-2; SURFACE; LINBO3; O-2;
D O I
10.1021/acs.cgd.9b00526
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Perovskite-type NaTaO3 is best known as a semiconductor photocatalyst that splits water under ultraviolet (UV) light irradiation. Here, we report the flux growth of millimeter-sized, platy NaTaO3 crystals using Na2MoO4 as the flux. During flux growth, the crystal size and the number of anisotropic crystals increased as the holding temperature was increased from 1100 to 1500 degrees C. By slowly cooling from 1500 to 1300 degrees C at a rate of 5 degrees C.h(-1), rectangular platy crystals grew up to 8.0 mm X 4.7 mm X 0.044 mm. The grown NaTaO3 crystals belonged to orthorhombic system and the index of the well developed faces was {010}.
引用
收藏
页码:3607 / 3611
页数:5
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