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

作者：Wang Yangang; Wang Yanqin; Liu Xiaohui; Guo Yun; Guo Yanglong; Lu Guanzhong^*

来源：Journal of Nanoscience and Nanotechnology, 2009, 9(2): 933-936.

DOI：10.1166/jnn.2009.C057

• Mesostructured Perovskite
• Nanocasting
• Methane Combustion

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.

• 出版日期2009-2
• 单位东华大学