Manganese oxides with different crystalline structures: Facile hydrothermal synthesis and catalytic activities

被引：68

作者：

Sun, Ming ^{[1
]}

Lan, Bang ^{[1
]}

Yu, Lin ^{[1
]}

Ye, Fei ^{[1
]}

Song, Wei ^{[1
]}

He, Jun ^{[1
]}

Diao, Guiqiang ^{[1
]}

Zheng, Yuying ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 86卷

关键词：

Manganese oxide; Nanocrystalline materials; Oxdation; Raman; SELECTIVE SYNTHESIS; PERFORMANCE; ALPHA-MNO2; NANOROD; SHAPE; MNO2;

D O I：

10.1016/j.matlet.2012.07.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Manganese oxides with different crystalline structures, namely alpha-, beta-, and gamma-, were synthesized by a facile hydrothermal method and characterized by X-ray powder diffraction (XRD), surface area analyzer, scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and hydrogen temperature-programmed reduction (H-2-TPR) techniques. The dimethyl ether combustion was used as a probe reaction to explore the crystalline phase effect of the manganese oxides. The results revealed that alpha-MnO2 with nanorod shape possesses higher catalytic activity compared to the other two manganese oxides. Their different catalytic activities for dimethyl ether combustion have also been discussed in terms of surface areas, crystalline structures and oxygen mobilities. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：18 / 20

页数：3

共 19 条

[1] Crystal-Plane-Controlled Surface Restructuring and Catalytic Performance of Oxide Nanocrystals [J].

Bao, Huizhi ;

Zhang, Wenhua ;

Hua, Qing ;

Jiang, Zhiquan ;

Yang, Jinlong ;

Huang, Weixin .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (51) :12294-12298

[2] MnO2-Based Nanostructures as Catalysts for Electrochemical Oxygen Reduction in Alkaline Media [J].

Cheng, Fangyi ;

Su, Yi ;

Liang, Jing ;

Tao, Zhanliang ;

Chen, Jun .

CHEMISTRY OF MATERIALS, 2010, 22 (03) :898-905

[3] Selective Synthesis of Manganese Oxide Nanostructures for Electrocatalytic Oxygen Reduction [J].

Cheng, Fangyi ;

Shen, Jian ;

Ji, Weiqiang ;

Tao, Zhanliang ;

Chen, Jun .

ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (02) :460-466

[4] Effect of crystallographic structure of MnO2 on its electrochemical capacitance properties [J].

Devaraj, S. ;

Munichandraiah, N. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (11) :4406-4417

[5]

Feng Q, 1999, J MATER CHEM, V9

[6] Microstructures and spectroscopic properties of cryptomelane-type manganese dioxide nanofibers [J].

Gao, Tao ;

Glerup, Marianne ;

Krumeich, Frank ;

Nesper, Reinhard ;

Fjellvag, Helmer ;

Norby, Poul .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (34) :13134-13140

[7] Structural and morphological evolution of β-MnO2 nanorods during hydrothermal synthesis [J].

Gao, Tao ;

Fjellvag, Helmer ;

Norby, Poul .

NANOTECHNOLOGY, 2009, 20 (05)

[8] Microstructural Effects on Charge-Storage Properties in MnO2-Based Electrochemical Supercapacitors [J].

Ghodbane, Ouassim ;

Pascal, Jean-Louis ;

Favier, Frederic .

ACS APPLIED MATERIALS & INTERFACES, 2009, 1 (05) :1130-1139

[9] Shape-selective synthesis, magnetic properties, and catalytic activity of single crystalline β-MnO2 nanoparticles [J].

Jana, Subhra ;

Basu, Soumen ;

Pande, Surojit ;

Ghosh, Suffit Kumar ;

Pal, Tarasankar .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (44) :16272-16277

[10] One-dimensional α-MnO2:: Trapping chemistry of tunnel structures, structural stability, and magnetic transitions [J].

Li, Liping ;

Pan, Yinzhen ;

Chen, Lijuan ;

Li, Guangshe .

JOURNAL OF SOLID STATE CHEMISTRY, 2007, 180 (10) :2896-2904

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