Preparation and growth mechanism of α-Bi2O3 crystal whiskers

被引：3

作者：

Xia, Jiyong ^{[1
]}

Liu, Li ^{[2
]}

Jin, Shengming ^{[2
]}

Xia, Zhimei ^{[3
]}

Tang, Motang ^{[1
]}

机构：

[1] Cent South Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China

[2] Cent South Univ, Sch Minerals Proc & Bioengn, Dept Inorgan Mat, Changsha 410083, Peoples R China

[3] Hunan Univ Techlon, Sch Met Engn, Zhuzhou 412000, Peoples R China

来源：

2011 CHINESE MATERIALS CONFERENCE | 2012年 / 27卷

关键词：

bismuth oxide(Bi2O3); whiskers; crystal growth; mechanism; synthesis;

D O I：

10.1016/j.proeng.2011.12.606

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Precursor of BiOCl was synthesized using BiCl3 and NaOH. Bi2O3 whiskers with high aspect ratio were prepared through reversing-titration method, i. e., dispersing BiOCl in Na2SO4, then dropped it in NaOH solution. The formation of monoclinic alpha-Bi2O3 crystal whiskers was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). SEM and TEM results revealed the aspect ratios of Bi2O3 whiskers were from 10 to 40, and the morphology of alpha-Bi2O3 evolved from single-needle-like to multineedle- like crystal whiskers with the increase of Na2SO4 concentration. Selected area electronic diffraction saed (SAED) patterns showed that the Bi2O3 whiskers were single crystalline grown along [210] direction. Furthermore, we discussed the mechanism of crystal growth.

引用

页码：1441 / 1447

页数：7

共 19 条

[1]

[Anonymous], IEEE EUR MICR C PAR

[2]

Chen Peirong, 2004, FUNCTIONAL MAT, V35, P1490

[3] SnO2:Bi2O3 based CO sensor:: Laser-Raman, temperature programmed desorption and X-ray photoelectron spectroscopic studies [J].

Devi, GS ;

Manorama, SV ;

Rao, VJ .

SENSORS AND ACTUATORS B-CHEMICAL, 1999, 56 (1-2) :98-105

[4] Hydrothermal transformation of alpha-FeOOH into alpha-Fe2O3 in the presence of silicon oxide [J].

Diamandescu, L ;

Mihailatarabasanu, D ;

PopescuPogrion, N .

MATERIALS LETTERS, 1996, 27 (4-5) :253-257

[5] HIGH-RATE, GAS-PHASE GROWTH OF MOS2 NESTED INORGANIC FULLERENES AND NANOTUBES [J].

FELDMAN, Y ;

WASSERMAN, E ;

SROLOVITZ, DJ ;

TENNE, R .

SCIENCE, 1995, 267 (5195) :222-225

[6] Carbon nanotube quantum resistors [J].

Frank, S ;

Poncharal, P ;

Wang, ZL ;

de Heer, WA .

SCIENCE, 1998, 280 (5370) :1744-1746

[7]

Higaki K, 1998, ELECTROCHEM SOLID ST, V1, P107, DOI 10.1149/1.1390653

[8] A higher conductivity Bi2O3-based electrolyte [J].

Jiang, NX ;

Wachsman, ED ;

Jung, SH .

SOLID STATE IONICS, 2002, 150 (3-4) :347-353

[9] On the optical properties of bismuth oxide thin films prepared by pulsed laser deposition [J].

Leontie, L ;

Caraman, M ;

Visinoiu, A ;

Rusu, GI .

THIN SOLID FILMS, 2005, 473 (02) :230-235

[10]

Li Wei, 2005, Journal of Central South University (Science and Technology), V36, P175

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