Facile heterogenization of homogeneous ferrocene catalyst on SBA-15 and its hydroxylation activity

作者：Burri David Raju; Shaikh Isak Rajjak; Choi Kwang Min; Park Sang Eon^*

来源：Catalysis Communications, 2007, 8(4): 731-735.

DOI：10.1016/j.catcom.2006.09.006

• ferrocene
• SBA-15
• benzene
• phenol
• mid-infrared spectroscopy
• near-infrared spectroscopy
• low angle XRD

Hexagonally ordered mesoporous silica SBA-15 was synthesized with amino propyl groups by direct co-condensation method using triblock co-polymer (P123) as a template, tetra ethyl orthosilicate as a silica source under conventional SBA-15 synthesis conditions. Amino propyl trimethoxy silane was utilized for introducing SBA-15 with propyl amine anchoring moiety. Ferrocene was anchored to SBA-15 post-synthetically by the condensation of amine group from propylamine SBA-15 with the carbonyl group of ferrocenecarboxaldehyde. The structural ordering and the textural properties of propyl amine functionalized SBA-15 (SBA-15-NH2) and further ferrocene tethered SBA-15 (SBA-15-N = ferrocene) were characterized by low angle XRD and nitrogen gas adsorption techniques. The attached organic moieties were identified by mid-infrared (MIR) and near-infrared (NIR) spectroscopy. The ferrocene functionalized SBA-15 is highly active towards the hydroxylation of benzene to phenol. The catalyst was reused without significant loss in activity.

• 出版日期2007-4