Conducting polymer aerogels from supercritical CO2 drying PEDOT-PSS hydrogels

被引：112

作者：

Zhang, Xuetong ^{[1
]}

Chang, Dongwu ^{[2
]}

Liu, Jiren ^{[1
]}

Luo, Yunjun ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[2] Tsinghua Univ, Dept Thermal Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 24期

基金：

中国国家自然科学基金;

关键词：

THIN-FILMS; CARBON; NANOPARTICLES; BEHAVIOR;

D O I：

10.1039/c0jm00050g

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：

The organic conducting PEDOT-PSS aerogels can be prepared by supercritical CO2 drying of metal ion crosslinked PEDOT-PSS supermolecular hydrogels. The PEDOT-PSS hydrogel precursors were synthesized by polymerizing 3,4-ethylenedioxythiophene with excess ferric nitrate as oxidizing agent as well as crosslinking agent in the presence of poly(sodium 4-styrenesulfonate). The supermolecular crosslinking mechanism of the hydrogel precursors and the chemical composition of the resulting aerogels were revealed by X-ray photoelectron spectroscopy (XPS). The molecular structure of the resulting PEDOT-PSS aerogels was further confirmed by Raman and infra-red spectroscopy. The morphology and textural properties of the resultant aerogels were investigated by scanning electron microscopy (SEM), nitrogen adsorption/desorption, and X-ray powder diffraction (XRD) tests, respectively. The resulting aerogels show light weight (0.138-0.232 g cm(-3)), large BET surface area (170-370 m(2) g(-1)) and hierarchically porous structure with wide pore size distribution. The large surface area and wide pore size distribution, together with their electro-optical properties, would allow these organic conducting aerogels to be applied in many fields with unexpected performance.

引用

页码：5080 / 5085

页数：6

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