Self-assembly of polyaniline nanowires into polyaniline microspheres

被引：15

作者：

Zhou, Zhibin ^{[2
]}

Wang, Jixiao ^{[1
]}

Wang, Zhi ^{[1
]}

Zhang, Fengbao ^{[2
]}

机构：

[1] Tianjin Univ, State Key Lab Chem Engn, Chem Engn Res Ctr, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Chem Engn & Technol, Dept Chem Engn, Tianjin 300072, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 14期

关键词：

Microstructure; Nanomaterials; Polymers; Self-assembly; ELECTRICAL-CONDUCTIVITY; HOLLOW SPHERES; SOLID-STATE; NANOFIBERS;

D O I：

10.1016/j.matlet.2011.04.052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High quality microspheres self-assembled from nanowires of polyaniline (PANI) are prepared by a self-assembly process using ammonium peroxydisulfate as oxidant in aqueous solution. The microspheres of about 2.6 mu m average diameter are composed of uniform nanowires with 40-60 nm in diameter. The formation process of PANI microsphere indicates that its evolution of morphologies can be divided into three stages. First, a large quantity of PANI nanowires form, then porous microspheres develop, and finally most of nanowires transform into microspheres. The morphology and uniformity of the PANI microspheres mainly depend on the mole ratio of aniline to ammonium peroxydisulfate. The BET specific surface area and conductivity of the polyaniline porous microsphere at room temperature are 53 m(2) g(-1) and 3.3 x 10(-1) S cm(-1), respectively. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2311 / 2314

页数：4

共 20 条

[1] Synthesis of micrometer-sized nanostructured magnesium oxide and its high catalytic activity in the Claisen-Schmidt condensation reaction [J].