Facile synthesis of hollow Co3O4 microspheres and its use as a rapid responsive CL sensor of combustible gases

被引：59

作者：

Teng, Fei ^{[1
,2
]}

Yao, Wenqing ^{[2
]}

Zheng, Youfei ^{[1
]}

Ma, Yutao ^{[3
]}

Xu, Tongguang ^{[2
]}

Gao, Guizhi ^{[1
]}

Liang, Shuhui ^{[2
]}

Teng, Yang ^{[4
]}

Zhu, Yongfa ^{[2
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Dept Chem, Nanjing 210044, Peoples R China

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

[3] Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China

[4] Suzhou Inst Trade & Commerce, Dept Informat Sci, Suzhou, Peoples R China

来源：

TALANTA | 2008年 / 76卷 / 05期

关键词：

hollow Co3O4 microspheres; chemiluminescence; CO oxidation; gas sensor;

D O I：

10.1016/j.talanta.2008.05.011

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The hollow Co3O4 microspheres (HCMs) were prepared by the carbonaceous templates, which did not need the Surface pretreatment. The chemiluminescence (CL) and catalytic properties for CO oxidation over these hollow samples were evaluated. The samples were characterized by scanning electron microscopy (SEM), energy disperse spectra (EDS). transmission electron microscopy (TEM), selected area electron diffraction (ED), X-ray diffraction (XRD), temperature-programmed desorption (TPD) and N-2 adsorption. The influences of filter' band length. flow rate of gas, test temperature, and particle Structure on CL intensities were mainly investigated. It was found that compared with the solid Co3O4 particles (SCPs), HCMs had a stronger CL intensity, which was ascribed to its hollow Structure; and that CL properties of the catalysts were well correlated with their reaction activities. Moreover, HCMs were used to fabricate a highly sensitive gas detector. which is a rapid and effective method for the selection of catalysts or the detection of environmental deleterious gases. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1058 / 1064

页数：7

共 29 条

[1] CHEMILUMINESCENCE DURING CATALYSIS OF CARBON-MONOXIDE OXIDATION ON A THORIA SURFACE [J].

BREYSSE, M ;

CLAUDEL, B ;

FAURE, L ;

GUENIN, M ;

WILLIAMS, RJJ ;

WOLKENSTEIN, T .

JOURNAL OF CATALYSIS, 1976, 45 (02) :137-144

[2] Nanoengineering of inorganic and hybrid hollow spheres by colloidal templating [J].

Caruso, F ;

Caruso, RA ;

Möhwald, H .

SCIENCE, 1998, 282 (5391) :1111-1114

[3] Spherical carbon capsules with hollow macroporous core and mesoporous shell structures as a highly efficient catalyst support in the direct methanol fuel cell [J].

Chai, GS ;

Yoon, SB ;

Kim, JH ;

Yu, JS .

CHEMICAL COMMUNICATIONS, 2004, (23) :2766-2767

[4] Improvement of the reduction capacity of activated carbon fiber [J].

Chen, SX ;

Zeng, HM .

CARBON, 2003, 41 (06) :1265-1271

[5] A chemiluminescence study of micron and nanoparticle titanium dioxide: effect on the thermal stability of metallocene polyethylene [J].

Corrales, T ;

Peinado, C ;

Allen, NS ;

Edge, M ;

Sandoval, G ;

Catalina, F .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 156 (1-3) :151-160

[6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[7] Surface plasmon resonance scattering and absorption of anti-EGFR antibody conjugated gold nanoparticles in cancer diagnostics: Applications in oral cancer [J].

El-Sayed, IH ;

Huang, XH ;

El-Sayed, MA .

NANO LETTERS, 2005, 5 (05) :829-834

[8]

FU RW, 1993, CARBON, V31, P1089

[9] Surfactant-assisted solvothermal synthesis of Co3O4 hollow spheres with oriented-aggregation nanostructures and tunable particle size [J].

He, T ;

Chen, DR ;

Jiao, XL ;

Xu, YY ;

Gu, YX .

LANGMUIR, 2004, 20 (19) :8404-8408

[10] Nano-precision replication of natural cellulosic substances by metal oxides [J].

Huang, JG ;

Kunitake, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (39) :11834-11835

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