Zeolite-supported Ni catalyst for methane reforming with carbon dioxide
Zeolite-supported Ni catalyst for methane reforming with carbon dioxide
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DOI：
10.1007/s11164-011-0249-3
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发表时间：
2011-02
影响因子：
3.3
通讯作者：
P. Frontera;A. Aloise;A. Macario;F. Crea;P. Antonucci;G. Giordano;J. Nagy
中科院分区：
文献类型：
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作者：
P. Frontera;A. Aloise;A. Macario;F. Crea;P. Antonucci;G. Giordano;J. Nagy
在本工作中，我们比较了不同合成后处理得到的镍基硅石-1型催化剂在甲烷干重整中的催化行为。为了观察硅醇基对Ni浸渍的影响，进而对催化剂整体性能的影响，我们对硅石-1型材料进行了处理。在应用的处理方法（离子交换、煅烧和硅基化）中，硅基化是一种可以形成更小、更可还原的ni -氧化物的方法，不仅可以提高甲烷的转化率，还可以减少由于焦炭沉积而导致的催化剂失活。
In the present work, we compare the catalytic behaviour, in the dry reforming of methane, of Ni-based Silicalite-1 type catalyst obtained by different post-synthesis treatments. The Silicalite-1 type material, used as Ni-support, has been treated in order to observe the role of the silanol groups on the Ni impregnation, and then on the overall catalyst performance. Among the applied treatments (ionic-exchange, calcinations and silylation), the silylation is the one that allows the formation of smaller and more reducible Ni-oxide species that not only improve the methane conversion but also reduce the deactivation of the catalyst, due to the coke deposition.