Nanocasted Synthesis of the Mesostructured LaCoO3 Perovskite and Its Catalytic Activity in Methane Combustion

被引：6

作者：

Wang, Yangang ^{[1
]}

Wang, Yanqin ^{[1
]}

Liu, Xiaohui ^{[1
]}

Guo, Yun ^{[1
]}

Guo, Yanglong ^{[1
]}

Lu, Guanzhong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Adv Mat Lab, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 02期

关键词：

Mesostructured Perovskite; Nanocasting; Methane Combustion; FLAMELESS COMBUSTION; OXIDATION; SILICA; SBA-15; SR;

D O I：

10.1166/jnn.2009.C057

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Extremely high surface area, mesostructured LaCoO3 perovskite has been synthesized by nanocasting from mesoporous cubic (la3d) vinyl silica. Thus-prepared material was characterized by XRD, TEM, and N-2-sorption, and its catalytic property was also tested in methane combustion. The catalytic results demonstrated that thus-prepared mesostructured LaCoO3 perovskite had higher activity than the conventional bulk LaCoO3 perovskite prepared by citrate method. Further analysis showed that both the high surface area and the existence of high valent cobalt ions (Co4+, XPS analysis) were contributed to the high activity.

引用

页码：933 / 936

页数：4

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