Surface chemistry of branched alkanes on lanthanum exchange zeolite X

摘要：

Branched alkanes were adsorbed on La exchanged zeolite X and their interaction and surface chemistry were studied at 348 K. At low coverage, the CH bonds of the adsorbed alkanes were strongly polarized. This led to activation of branched alkanes by hydride abstraction, the reactivity being higher the higher the degree of branching was. Upon activation, carboxyl species were formed on the surface, which participated in isomerization and cracking reactions. The olefins, which were formed by cracking, were protonated on Br鴑sted acid sites or added to existing carbenium ions.

作者: Carsten Sievers Ayumu Onda Alexander Guzman Roberta Olindo Johannes A. Lercher

作者单位: Department of Chemistry - Technische Universitat Munchen, Lichtenbergstrasse 4, D-85747 Garching, Ge Department of Chemistry - Technische Universitat Munchen, Lichtenbergstrasse 4, D-85747 Garching, Ge

会议类型: 国际会议

会议名称: 第15届国际分子筛大会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-12（万方平台首次上网日期，不代表论文的发表时间）