Sol-gel synthesis and characterization of mesoporous manganese oxide

被引：42

作者：

Hong, XL

Zhang, GY ^{[1
]}

Zhu, YY

Yang, HQ

机构：

[1] Wuhan Univ, Sch Chem & Mol Sci, Wuhan 430072, Peoples R China

[2] China Res Inst Daily Chem Ind, Taiyuan 030001, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 13期

关键词：

oxides; sol-gel synthesis;

D O I：

10.1016/j.materresbull.2003.07.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mesoporous manganese oxide (MPMO) from reduction of KMnO4 with maleic acid, was obtained and characterized in detail. The characterization of the material was confirmed by high-resolution transmission electron microscopy (HRTEM), X-ray powder diffractometry (XRD) and N-2 sorptometry. The results showed that MPMO is a pseudo-crystalline material with complex network pore structure, of which BET specific surface area is 297 m(2)/g and pore size distribution is approximately in the range of 0.7-6.0 nm. The MPMO material turns to cryptomelane when the calcinating temperature rises to 400 degreesC. The optimum sol-gel reaction conditions are KMnO4/C4H4O4 molar ratio = 3, pH = 7 and gelation time > 6 h. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1695 / 1703

页数：9

共 17 条

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