New method for the immobilization of nitroxyl radical on mesoporous silica

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Machado, A (Author) Other; Casimiro, MH (Author) Other; Ferreira, LM (Author) Other; Castanheiro, JE (Author) Other; Ramos, AM (Author) Other; Fonseca, IM (Author) Other; Vital, J (Author) Other

Journal

Title: Microporous and Mesoporous Materials

Vol. 203

Pages: 63-72

ISSN: 1387-1811

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 8 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-00A-5JD

DOI: 10.1016/j.micromeso.2014.10.019

Abstract (EN): This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4-hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using 1,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10