Synthesis of Mn-doped CeO2 nanorods and their application as humidity sensors

被引：36

作者：

Hu, C. H. ^{[1
]}

Xia, C. H. ^{[1
]}

Wang, F. ^{[1
]}

Zhou, M. ^{[1
]}

Yin, P. F. ^{[1
]}

Han, X. Y. ^{[1
]}

机构：

[1] Chongqing Jiaotong Univ, Coll Sci, Chongqing 400074, Peoples R China

来源：

BULLETIN OF MATERIALS SCIENCE | 2011年 / 34卷 / 05期

关键词：

Mn-doped CeO2; nanorods; humidity sensitivity; CATALYTIC WET-OXIDATION; OXIDES; COMPOSITES;

D O I：

10.1007/s12034-011-0129-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mn-doped CeO2 nanorods have been prepared from CeO2 particles through a facile compositehydroxide- mediated (CHM) approach. The products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The analysis from the X-ray photoelectron spectroscopy indicates that the manganese doped in CeO2 exists as Mn4+. The responses to humidity for static and dynamic testing proved dopingMn into CeO2 can improve the humidity sensitivity. For the sample withMn% about 1.22, the resistance changes from 375.3 to 2.7M Omega as the relative humidity (RH) increases from 25 to 90%, indicating promising applications of the Mn-doped CeO2 nanorods in environmental monitoring.

引用

页码：1033 / 1037

页数：5

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