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Tailored copper nanoparticles in ordered mesoporous KIT-6 silica: Preparation and application as catalysts in integrated system for NO removal with products of methanol decomposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
40127 45844 2013 10 PDF Available
Title
Tailored copper nanoparticles in ordered mesoporous KIT-6 silica: Preparation and application as catalysts in integrated system for NO removal with products of methanol decomposition
Abstract

•Novel strategy for loading of copper nanoparticles with tunable size in KIT-6.•Effect of ordered porous structure on the growing and accessibility of copper particles.•Optimization of catalyst composition for NOx reduction with decomposed methanol.

First time a combined wet impregnation (WI)-organometallics chemical vapor deposition (OMCVD) strategy was applied for loading of 3–7 wt.% copper in mesoporous silica KIT-6 matrix nanoparticles with tailored particle size. XRD, HRTEM, nitrogen physisorption, UV–vis, XPS and temperature programmed reduction with hydrogen were used for the samples characterization and comparison with the similar materials obtained by conventional impregnation technique. The catalytic behaviour of all samples was tested in number of ecological reactions, such as methanol decomposition, selective catalytic reduction (SCR) of NO by CO and, for the first time, in SCR of NO with a mixture of CO and CH4. The catalyst composition was optimized in a view of its potential application in an integrated catalytic system for the NO removal by SCR with the products of methanol decomposition. The step-wise WI-OMCVD technique is appropriate for the preparation of uniform and finely dispersed copper nanoparticles inside the mesoporous of KIT-6 silica matrix. The growth of copper particles and their catalytic behaviour is strongly controlled by the porous structure of the support.

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Keywords
OMCVD technique; Copper nanoparticles supported on KIT-6; Methanol decomposition; SCR of NO with CO; SCR of NO with CO and CH4
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Tailored copper nanoparticles in ordered mesoporous KIT-6 silica: Preparation and application as catalysts in integrated system for NO removal with products of methanol decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 464–465, 15 August 2013, Pages 243–252
Authors
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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