Deposition of ultrathin nafion layers on sol-gel-derived phenylsilsesquioxane particles via layer-by-layer assembly

被引：13

作者：

Daiko, Yusuke ^{[1
]}

Sakamoto, Hisatoshi ^{[1
]}

Katagiri, Kiyofumi ^{[2
]}

Muto, Hiroyuki ^{[1
]}

Sakai, Mototsugu ^{[1
]}

Matsuda, Atsunori ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Mat Sci, Toyohashi, Aichi 4418580, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Appl Chem, Nagoya, Aichi 4648603, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2008年 / 155卷 / 05期

关键词：

D O I：

10.1149/1.2885101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ultrathin layers of oppositely charged poly(diallyldimethylammonium chloride) (PDDA) and Nafion were alternately deposited on negatively charged phenylsilsesquioxane (PhSiO3/2) microparticles via layer-by-layer assembly. An extremely small amount of Nafion was used for the layers. The average thickness of a Nafion layer was estimated to be 2.6 nm from the amount of deposited Nafion and the density. A monolithic sheet was obtained from PhSiO3/2 particles with PDDA and the Nafion multilayer when the particles were pressed at 70 MPa. Fenton's test, differential thermal analysis, and thermogravimetry revealed that PhSiO3/2 particles are chemically and thermally stable. The monolithic samples prepared using PDDA/Nafion-multilayer-coated PhSiO3/2 particles showed proton conductivities similar to 4 orders of magnitude higher than those of samples without multilayers, and their conductivity reached about 10(-5) S/cm at 80 degrees C and 80% relative humidity. (c) 2008 The Electrochemical Society.

引用

页码：B479 / B482

页数：4

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