| Total oxidation of toluene on Pt/CeO2-ZrO2-Bi2O3/gamma-Al2O3 catalysts prepared in the presence of polyvinyl pyrrolidone. | |
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MedLine Citation:
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PMID: 20022164 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Pt/CeO(2)-ZrO(2)-Bi(2)O(3)/gamma-Al(2)O(3) (Pt/CZB/Al(2)O(3)) catalysts for the catalytic combustion of toluene, which is one of the volatile organic compounds (VOCs), were prepared by the wet impregnation method in the presence of polyvinyl pyrrolidone (PVP). X-ray powder diffraction, transmission electron microscopy, and BET specific surface area measurement using N(2) adsorption have been used to characterize the catalysts. The catalytic test was conducted from room temperature in a flow of 900 ppm of toluene in air and gas hourly space velocity (GHSV) of 8000 h(-1). The catalytic activity was evaluated in terms of C(7)H(8) conversion and the gas composition after the reaction was analyzed using two gas chromatographs with a flame ionization detector (FID) and a thermal conductivity detector (TCD). The Pt/CZB/Al(2)O(3) catalysts are specific for the total toluene oxidation and CO and any toluene-derivative compounds were not detected as by-products. The specific surface area of the catalysts was increased by the addition of PVP in the preparation process. By the optimization of the amount of platinum, complete oxidation of toluene was realized at a temperature as low as 120 degrees C on a 7 wt%Pt/16 wt%Ce(0.64)Zr(0.15)Bi(0.21)O(1.895)/gamma-Al(2)O(3) catalyst. |
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Authors:
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Toshiyuki Masui; Hayato Imadzu; Naoto Matsuyama; Nobuhito Imanaka |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-11-26 |
Journal Detail:
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Title: Journal of hazardous materials Volume: 176 ISSN: 1873-3336 ISO Abbreviation: J. Hazard. Mater. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-02-01 Completed Date: 2010-05-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: Netherlands |
Other Details:
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Languages: eng Pagination: 1106-9 Citation Subset: IM |
Copyright Information:
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2009 Elsevier B.V. All rights reserved. |
Affiliation:
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Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants
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chemistry* Aluminum Oxide Bismuth Boron Compounds Catalysis Cerium Incineration Oxidation-Reduction Platinum Polyvinyls Pyrrolidinones / chemistry* Toluene / chemistry* Volatile Organic Compounds / chemistry* Zirconium |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Boron Compounds; 0/Polyvinyls; 0/Pyrrolidinones; 0/Volatile Organic Compounds; 0/zirconium diboride; 108-88-3/Toluene; 1304-76-3/bismuth oxide; 1306-38-3/ceric oxide; 1344-28-1/Aluminum Oxide; 7440-06-4/Platinum; 7440-45-1/Cerium; 7440-67-7/Zirconium; 7440-69-9/Bismuth |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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