Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals

被引：81

作者：

Dong, Lingqing ^{[1
,2
]}

Shi, Hui ^{[3
,4
]}

Cheng, Kui ^{[1
]}

Wang, Qi ^{[3
,4
]}

Weng, Wenjian ^{[1
,5
]}

Han, Weiqiang ^{[1
,2
,6
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Cyrus Tang Ctr Sensor Mat & Applicat, Hangzhou 310027, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315210, Zhejiang, Peoples R China

[3] Zhejiang Univ, Soft Matter Res Ctr, Hangzhou 310027, Zhejiang, Peoples R China

[4] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

[5] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

[6] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China

来源：

NANO RESEARCH | 2014年 / 7卷 / 09期

基金：

中国国家自然科学基金;

关键词：

SrTiO3; BaTiO3; shape-controlled growth; alcohol molecules; pK(a) values; HYDROTHERMAL SYNTHESIS; PLATINUM NANOCRYSTALS; ADSORPTION; NANOPARTICLES; TIO2(110); NANOSCALE; INTERFACE; CRYSTALS; SURFACES; FACETS;

D O I：

10.1007/s12274-014-0495-y

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：

A series of SrTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution from cubic to edge-truncated cubic and truncated rhombic dodecahedra have been synthesized by using a series of alcohol molecules with different acidities as surfactants. The concentration and pK (a) value of the alcohols both play important roles in determining the size and shape of the SrTiO3 polyhedral submicro/nanocrystals. The adsorption energy of alcohol molecules on SrTiO3 {110} facets depends on their pK (a) values, which are therefore critical for morphology control. Using the same strategy, a series of BaTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution have also been successfully prepared.

引用

页码：1311 / 1318

页数：8

共 29 条

[1] The adsorption and dissociation of ROH molecules on TiO2(110) [J].