Evidences of surface curvature effects in mesoporous materials through the study of 1-hexene isomerization

摘要：

This study provides a straightforward demonstration of the influence of surface curvature effects in catalysis by mesoporous materials and allows showing that geometry-dependent contributions dominate catalytic processes over all other factors. For the model reaction selected, isomerization of 1-hexene, the differences in activity observed for the fresh catalysts with pore diameters in the range 2.3 nm - 9.3 nm are nicely accounted for by the differences in the heats of physisorption measured over non-acidic analogous mesoporous materials. The influence of pore filling has also been investigated and the very first inversion of selectivity for a precise pore size catalyst 4.6 nm is demonstrated.

作者: S. Pariente N. Tanchoux P. Trens Franvois Fajula

作者单位: Institut Charles Gerhardt, UMR5253 CNRS/UM2/ENSCM/UM1, Group Advanced Materials for Catalysis and Health, 8 rue de lEcole Normale 34296 Montpellier Cedex 5,France

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）