Synthesis of porous cordierite and application for MnO x /TiO2 catalyst support

Synthesis of porous cordierite and application for MnO x /TiO2 catalyst support In this study the porous cordierite supports were synthesized from kaolin, magnesium oxide, silicon dioxide, and starch as pore-forming agent. A firing temperature, a optimum added amount of the starch, an acid treating time, and impregnation times for the cordierite support were all discussed. The results showed that when the firing temperature was 1300°C and the amount of the pore-forming agent was 8%, the bending strength and thermal expansion coefficient of the cordierite sample were 19.48 MPa and 1.94 × 10−6 °C−1, respectively, which fitted for MnO x /TiO2 SCR catalyst’s support. The FTIR indicated that it was necessary for the cordierite to be treated by 2mol L−1 nitric acid, this process could introduce a larger number of oxygen-containing functional groups and create a more hydrophilic surface structure. The SEM images illustrated that the acid treatment resulted in developing the amount of pores, which contributed to the gas-solid phase reaction. When the cordierite supports were impregnated 5 times in the MnO x /TiO2 solution, a loading amount of MnO x /TiO2 was 20.05%. With this MnO x /TiO2/cordierite samples, the maximum NO conversion could reach 85.4% at 200°C, which met the requirement of cement industry for selective catalytic reduction (SCR) with NH3. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Synthesis of porous cordierite and application for MnO x /TiO2 catalyst support

Loading next page...
 
/lp/springer_journal/synthesis-of-porous-cordierite-and-application-for-mno-x-tio2-catalyst-Ipe5ESM7lI
Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427214110287
Publisher site
See Article on Publisher Site

Abstract

In this study the porous cordierite supports were synthesized from kaolin, magnesium oxide, silicon dioxide, and starch as pore-forming agent. A firing temperature, a optimum added amount of the starch, an acid treating time, and impregnation times for the cordierite support were all discussed. The results showed that when the firing temperature was 1300°C and the amount of the pore-forming agent was 8%, the bending strength and thermal expansion coefficient of the cordierite sample were 19.48 MPa and 1.94 × 10−6 °C−1, respectively, which fitted for MnO x /TiO2 SCR catalyst’s support. The FTIR indicated that it was necessary for the cordierite to be treated by 2mol L−1 nitric acid, this process could introduce a larger number of oxygen-containing functional groups and create a more hydrophilic surface structure. The SEM images illustrated that the acid treatment resulted in developing the amount of pores, which contributed to the gas-solid phase reaction. When the cordierite supports were impregnated 5 times in the MnO x /TiO2 solution, a loading amount of MnO x /TiO2 was 20.05%. With this MnO x /TiO2/cordierite samples, the maximum NO conversion could reach 85.4% at 200°C, which met the requirement of cement industry for selective catalytic reduction (SCR) with NH3.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Mar 3, 2015

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
Access to DeepDyve database
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off