Preparation, Characterization, and Catalytic Properties of Clay-Based Nickel Catalysts for Methane Reforming.
Preparation, Characterization, and Catalytic Properties of Clay-Based Nickel Catalysts for Methane Reforming.
复制标题
甲烷重整用粘土基镍催化剂的制备、表征和催化性能。
DOI：
10.1006/jcis.1998.5553
复制
发表时间：
1998
影响因子：
9.9
通讯作者：
Lu
中科院分区：
文献类型：
--
作者：
Wang;Zhu;Lu
天然粘土和柱撑粘土用作镍催化剂的载体，用于与二氧化碳进行甲烷重整反应以生成合成气。通过 N2 吸附/解吸和 X 射线衍射 (XRD) 技术系统地检查了载体和催化剂的结构和结构特征。研究发现，载体的孔结构和表面性质极大地影响所制备催化剂的催化活性。介孔粘土或柱撑粘土负载的催化剂明显优于微孔载体上的催化剂，因为介孔载体比微孔载体具有更高的热稳定性。研究发现，在载体上引入镧可以提高催化剂的碱性，从而增强这些催化剂的催化活性。还讨论了所制备的催化剂的失活以及影响其稳定性的因素。版权所有1998 学术出版社。
Naturally occurring clays and pillared clays are used as supports of nickel catalysts for the methane reforming reaction with carbon dioxide to synthesis gas. The structural and textural characteristics of the supports and catalysts are systematically examined by N2 adsorption/desorption and X-ray diffraction (XRD) techniques. It is found that the pore structures and surface properties of supports greatly affect the catalytic activities of the catalysts prepared. The catalysts supported on the mesoporous clays or pillared clays are obviously superior to those on microporous supports because the mesoporous supports are highly thermal stable compared to the microporous ones. It is found that introducing lanthanum to the supports can improve the catalyst basicity and thus enhance the catalytic activities of these catalysts. Deactivation of catalysts prepared and factors influencing their stability are also discussed. Copyright 1998 Academic Press.