不同金属取代LaMAl11O19-δ催化剂的制备及甲烷催化燃烧的性能  

Preparation of Different Metal Substituted Hexaaluminate and Its Catalytic Performance of Methane Combustion

作　　者：逄芳[1] 徐占林[1] 牛春艳[1] 侴晓玉[1] 于庆勇[1] 陈利娜[1] 

机构地区：[1]吉林师范大学化学学院,吉林四平136000

出　　处：《贵州化工》2008年第1期16-18,共3页Guizhou Chemical Industry

摘　　要：采用溶胶-凝胶法制备了系列的LaMAl11O19(M=Fe,Co,Ni,Mn,Cu)催化剂,并且用XRD、BET、TEM等技术对其进行表征。进一步研究了M对六铝酸盐催化剂的形成、比表面积、燃烧活性的影响。结果表明M促进了六铝酸盐催化剂的形成,其中Mn取代的六铝酸盐催化剂的热稳定性高,而且具有更高的甲烷催化活性。serias of different metal substituted hexaaluminate catalysts LAMAl11O19 were prepared by sol - gel metod, and they were charaterized with the help of XRD, BET （ M = Fe,Co,Ni,Mn,Cu） and SEM.. the effect of different metal on structure, specific surface area and catalytic activity for methane combustion was investigated over LaMAl11O19 （ M = Fe, Co, Ni, Mn, Cu）. the result indicated that M contributed to form hexaaluminte crystal phase more easily, and Mn -substituted catalyst was more stable in high temperature and had more excellent catalytic activity for methane combustion.

关 键 词：六铝酸盐 甲烷 催化燃烧 溶胶-凝胶法 

分 类 号：TQ032.4[化学工程] TQ221.11