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六铝酸盐LaMAl11O19-δ催化CO2重整甲烷制合成气   总被引:2,自引:0,他引:2  
CO2重整甲烷制合成气催化剂大都采用负载型Ni或Ru,Rh,Pd,Pt和Ir等贵金属[1~4],这些催化剂虽表现出较高的催化活性,但因其价格或积炭烧结等原因,很难大规模开发和应用.  相似文献
2.
A series of M-substituted hexaaluminates LaMAl11O19-δ (M=Fe, Co, Ni, Mn, and Cu) were prepared and characterized by XRD, XPS, TPR and TGA techniques, respectively. They exhibited different reducibility and catalytic activity for partial oxidation of methane (POM) to synthesis gas. Among the LaMAl11019-δ samples, LaNiAl11O19-δ showed the best catalytic activity for the topic reaction and selectivity for synthesis gas at 780 ℃ for 2 h. The conversion of CH4 was over 99.2%, and the product selectivity for both CO and H2 was above 90.3%.  相似文献
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