INTERCALATED CLAY CATALYSTS
INTERCALATED CLAY CATALYSTS
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DOI：
10.1126/science.220.4595.365
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发表时间：
1983-01-01
期刊：
影响因子：
56.9
通讯作者：
PINNAVAIA, TJ
中科院分区：
文献类型：
--
作者：
PINNAVAIA, TJ
最近在蒙脱石粘土矿物中插入金属络合物阳离子方面的进展导致了新型选择性多相催化剂的发展。粘土插层中金属催化和质子催化的化学转化的选择性通常可以通过控制表面化学平衡、层间溶胀或层间区域中反应物对的接近度来调节。此外，多核羟基金属阳离子和金属簇阳离子在蒙脱石中的嵌入提供了新的柱撑粘土催化剂，其孔径可以大于常规沸石催化剂的孔径。
Recent advances in the intercalation of metal complex cations in smectite clay minerals are leading to the development of new classes of selective heterogeneous catalysts. The selectivity of both metal-catalyzed and proton-catalyzed chemical conversions in clay intercalates can often be regulated by controlling surface chemical equilibria, interlamellar swelling, or reactant pair proximity in the interlayer regions. Also, the intercalation of polynuclear hydroxy metal cations and metal cluster cations in smectites affords new pillared clay catalysts with pore sizes that can be made larger than those of conventional zeolite catalysts.