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每周分享：influence of alkaline and alkaline-earth cocations on the performance of ni/β-sic catalysts in the methane tri-reforming reaction

今天给大家分享的是2014年4月份 《applied catalysis b: environmental》上发表的一篇名为：

influence of alkaline and alkaline-earth cocations on the performance of ni/β-sic catalysts in the methane tri-reforming reaction

文章摘要如下：

the influence of alkaline (na, k) and alkaline earth (mg, ca) cocations on the behaviour of ni/β-sic catalyst for the tri-reforming of methane has been evaluated in this work. the cocations were loaded by co-impregnation with ni, using different cocation/ni ratios. catalysts were characterized by aas, tpr, n2 adsorption, co2-tpd and xrd after calcination, as well as by xrd and tpo after reaction. it was analyzed the effect of the cocations on the β-sic oxidation rate, which was increased when na or k were loaded. the presence of mg led to a high catalytic performance and stability (with a lower coke formation) since it provoked a decrease of ni particle size and an increase of both the interaction between nickel and promoter and the catalyst basicity. catalysts with ni:mg molar ratios of 2/1 and 1/1 showed the best performance in terms of activity and stability and formation of coke. these catalysts were considered good candidates for the tri-reforming of methane.

该文章中材料表征采用的是美国麦克仪器autochem 2950 hp

详情可参考下面链接：

http://www.sciencedirect.com/science/article/pii/s092633731300698x