fulltext.study @t Gmail

Facile preparation of SBA-15-supported niobic acid (Nb2O5·nH2O) catalyst and its catalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
42573 45931 2009 7 PDF Available
Title
Facile preparation of SBA-15-supported niobic acid (Nb2O5·nH2O) catalyst and its catalytic activity
Abstract

Hydrated niobium oxide (niobic acid) was effectively supported on mesoporous silica SBA-15 by HCl treatment of colloidal niobium oxide solution. The obtained Nb/SBA-15 exhibited high thermal stability, with no crystallization of niobium oxide. The number of generated Brönsted and Lewis acid sites increased with the Nb2O5 content. The catalytic activity of Nb/SBA-15 was evaluated to catalyze the hydrolysis of sucrose; Nb/SBA-15 exhibited higher sucrose conversion and TON than both bulk niobic acid and Nb/SBA-15-Oxa prepared according to a previously reported method. Moreover, we found that the choice of acid to be used in the preparation process influences catalytic activity. Nb/SBA-15 prepared by H3PO4 treatment yielded the highest sucrose conversion.

Graphical abstractHydrated niobium oxide (niobic acid) supported on mesopores of SBA-15 was prepared by a simple method that consisted only of HCl treatment of colloidal niobium oxide nanoparticles stabilized with ammonium cations. Nb/SBA-15 catalyst obtained showed excellent catalytic performance for hydrolysis of sucrose.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Niobic acid; Colloidal niobium oxide; SBA-15; Hydrolysis; Sucrose
First Page Preview
Facile preparation of SBA-15-supported niobic acid (Nb2O5·nH2O) catalyst and its catalytic activity
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 365, Issue 2, 31 August 2009, Pages 261–267
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us