Evidence of zeolitic-like domains in mesostructured aluminosilicates: FTIR spectroscopy of basic probe molecules

摘要：

The acid properties of mesostructured aluminosilicates synthesized from gel precursors of colloidal ZSM-5 zeolite have been studied by FTIR spectroscopy of basic probe molecules (ammonia, CO and propene). It is shown that these materials possess stronger acid sites with higher thermal stability than those of conventional Al-MCM-41. These results explain the enhanced m-xylene isomerization activity of these materials and are attributed to the presence of zeolitic-like domains in the aluminosilicate framework.

作者: M. T. Sánchez J. Ag(u)ndez J. Pérez-Pariente C. Márquez-(A)lvarez B. Onida E. Garrone

作者单位: Instituto de Catálisis y Petroleoquímica, CSIC. C/ Marie Curie 2, Cantoblanco, 28049 Madrid, Spain Dipartimento di Scienza dei Materiali e Ingegneria Chimica, Politecnico di Torino, Corso Duca degli

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）