Carbon monoxide adsorption on low-silica zeolites-from single to dual and to multiple cation sites

被引:43
作者
Arean, C. Otero
Delgado, M. Rodriguez
Bauca, C. Lopez
Vrbka, L.
Nachtigall, P. [1 ]
机构
[1] Univ Balearic Isl, Dept Quim, E-07122 Palma de Mallorca, Spain
[2] Acad Sci Czech Republ, Inst Organ Chem & Biochem, Ctr Biomed & Complex Mol Syst, Prague 16610 6, Czech Republic
关键词
D O I
10.1039/b709073k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Infrared spectra of CO adsorbed on the Al-rich Na-A zeolite were analysed by using a combined theoretical and experimental approach, showing that such spectra cannot be interpreted by assigning each IR band to CO interacting with a specific type of single cation site. This concept, which usually works well for high-silica zeolites, should not be uncritically extended to Al-rich zeolites that are crowded with cations in configurations which lead to preferential formation of CO adsorption complexes involving more than one cation site.
引用
收藏
页码:4657 / 4661
页数:5
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