Synthesis of hollow Mn3O4-in-Co3O4 magnetic microspheres and its chemiluminescence and catalytic properties

被引：27

作者：

Teng, Fei ^{[1
]}

Xu, Tongguang ^{[2
]}

Liang, Shuhui ^{[2
]}

Buergen, Gauloo ^{[2
]}

Yao, Wenqing ^{[2
]}

Zhu, Yongfa ^{[2
]}

机构：

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

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

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 06期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

hollow Mn3O4-in-Co3O4; hollow Co3O4; chemiluminescence; CO oxidation;

D O I：

10.1016/j.catcom.2007.10.032

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 novel hollow Mn3O4-in-Co3O4 and hollow Co3O4 microspheres were prepared through a hydrothermal route, following by subsequent impregnation and annealing. The samples were characterized by SEM (EDS), TEM (ED), XRD, and N-2 adsorption. The chemiluminescence (CL) and catalytic properties for CO oxidation over these hollow samples were evaluated. The hollow Mn3O4-in-Co3O4 catalyst showed a stronger CL response to CO and a higher catalytic activity for CO oxidation, compared with the hollow Co3O4 sample, which was attributed to the novel structure of crystals-in-ball. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：1119 / 1124

页数：6

共 38 条

[1]

BRUSINSMA PJ, 1997, CHEM MATER, V9, P2507

[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] Micrometer-to-manometer replication of hierarchical structures by using a surface sol-gel process [J].

Caruso, RA .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (21) :2746-2748

[4] 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

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

Chen, SX ;

Zeng, HM .

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

[6]

Cho J, 2001, ANGEW CHEM INT EDIT, V40, P3367, DOI 10.1002/1521-3773(20010917)40:18<3367::AID-ANIE3367>3.0.CO

[7]

2-A

[8]

DAVIS SA, 1997, NATURE, V101, P385

[9] Hydrothermal growth of manganese dioxide into three-dimensional hierarchical nanoarchitectures [J].

Ding, YS ;

Shen, XF ;

Gomez, S ;

Luo, H ;

Aindow, M ;

Suib, SL .

ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (04) :549-555

[10]

FU RW, 1993, CARBON, V31, P1089

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