Co₃O₄/Al₂O₃催化剂对甲烷低温燃烧的催化性能

Co 3 O 4 /Al 2 O 3 催化剂对甲烷低温燃烧的催化性能 Catalytic Activity for Methane Low Temperature Combustion over Co 3 O 4 /Al 2 O 3 Catalysts 白延利 BAI Yan-li 1 2 first-author 严河清 YAN He-qing 1 2 孙瑜 SUN Yu 1 2 武汉大学化学与分子科学学院 武汉大学化学与分子科学学院 College of Chemistry and Molecular Sciences,Wuhan University College of Chemistry and Molecular Sciences,Wuhan University 武汉大学化学与分子科学学院,湖北,武汉,430072 武汉大学化学与分子科学学院,湖北,武汉,430072 采用室温固相合成法制备了不同负载量的Co3O4/Al2O3系列催化剂,用X-射线衍射（XRD）技术对其物相结构进行了表征,并考察了负载量和焙烧温度对甲烷低温燃烧催化活性的影响.结果表明,该法制备的Co3O4/Al2O3系列催化剂具有较好的低温催化活性,且随Co3O4负载量的增加,催化剂的低温活性增强.综合考虑催化剂的催化活性和稳定性,400℃焙烧制备的Co3O4负载量为40%的Co3O4/Al2O3催化剂对甲烷低温催化燃烧有较好的催化性能. A series of Co 3 O 4 /Al 2 O 3 catalysts were prepared via solid-state reaction and characterized by X-ray diffraction（XRD）.The catalytic performance of methane oxidation was studied in detail.The effects of amount of Co 3 O 4 loading and calcination condition on catalytic performance for methane oxidation over these catalysts were investigated.The results show that the catalysts with higher Co 3 O 4 contents have higher catalytic activity in methane low temperature combustion.The activity and stability studies show that the 40% Co 3 O 4 /Al 2 O 3 prepared at（400℃） is found to be the best catalyst for methane low temperature combustion. Co3O4 室温固相反应 甲烷氧化 Co3O4 solid-state reaction CH4 oxidation O643.32 国家自然科学基金资助项目（107880233） 2005-06-01 2021-04-01 6