Synthesis of octahedral CuS nanocages via a solid-liquid reaction

被引：88

作者：

Xu, Haolan

Wang, Wenzhong

Zhu, Wei

Zhou, Lin

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100390, Peoples R China

来源：

NANOTECHNOLOGY | 2006年 / 17卷 / 15期

关键词：

D O I：

10.1088/0957-4484/17/15/005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Octahedral CuS nanocages were synthesized by a solid-liquid reaction between solid Cu2O octahedra and thiourea solution at 90 degrees C. Octahedral Cu2O particles were used as the sacrificial cores, precursor and shape-controller. The transformation of octahedral Cu2O to hollow CuS octahedra was monitored by the TEM images and EDX spectra. A mechanism of mass diffusion followed by Ostwald ripening is proposed based on the evidence of electron microscope images. The critical size (d*) of the precursor for the formation of hollow structured CuS was estimated based on the proposed mechanism and the designed experiments.

引用

页码：3649 / 3654

页数：6

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