Correlation between acidity and catalytic activity for the methanol dehydration over various aluminum oxides

Correlation between acidity and catalytic activity for the methanol dehydration over various... Dehydration of methanol into dimethyl ether (DME) was carried out over aluminum oxides with different crystalline phases, viz. η-Al2O3, γ-Al2O3, θ-Al2O3, (χ + γ)-Al2O3, δ-Al2O3, α-Al2O3, and κ-Al2O3. The catalytic activity decreased in the following order: η-Al2O3 > γ-Al2O3 ≫ θ-Al2O3 ≫ (χ + γ)-Al2O3 ≫ δ-Al2O3 > α-Al2O3 ≈ κ-Al2O3. Several techniques: N2 physisorption, X-ray diffraction (XRD), temperature-programmed desorption (TPD) of NH3, and FT-IR spectroscopy after pyridine adsorption were employed to characterize these solid acid catalysts. The good correlation can be found between the catalytic activity and the amount of Lewis acid site determined by the FT-IR spectra after pyridine adsorption. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Correlation between acidity and catalytic activity for the methanol dehydration over various aluminum oxides

Loading next page...
 
/lp/springer_journal/correlation-between-acidity-and-catalytic-activity-for-the-methanol-B8sc94N2rS
Publisher
Springer Netherlands
Copyright
Copyright © 2010 by Springer Science+Business Media B.V.
Subject
Chemistry; Inorganic Chemistry ; Physical Chemistry ; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-010-0201-y
Publisher site
See Article on Publisher Site

Abstract

Dehydration of methanol into dimethyl ether (DME) was carried out over aluminum oxides with different crystalline phases, viz. η-Al2O3, γ-Al2O3, θ-Al2O3, (χ + γ)-Al2O3, δ-Al2O3, α-Al2O3, and κ-Al2O3. The catalytic activity decreased in the following order: η-Al2O3 > γ-Al2O3 ≫ θ-Al2O3 ≫ (χ + γ)-Al2O3 ≫ δ-Al2O3 > α-Al2O3 ≈ κ-Al2O3. Several techniques: N2 physisorption, X-ray diffraction (XRD), temperature-programmed desorption (TPD) of NH3, and FT-IR spectroscopy after pyridine adsorption were employed to characterize these solid acid catalysts. The good correlation can be found between the catalytic activity and the amount of Lewis acid site determined by the FT-IR spectra after pyridine adsorption.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Sep 18, 2010

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off