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Catalytic treating of gas pollutants over cobalt catalyst supported on porous carbons derived from rice husk and carbon nanotube

Paper ID Volume ID Publish Year Pages File Format Full-Text
47676 46479 2009 10 PDF Available
Title
Catalytic treating of gas pollutants over cobalt catalyst supported on porous carbons derived from rice husk and carbon nanotube
Abstract

Porous carbons were prepared from rice husks, commercial coconut-shell-derived carbon, and carbon nanotube (CNT) by activation with CO2, KOH, and ZnCl2. Cobalt catalysts were supported on the six different porous carbons by excess-solution impregnation, and were used to carry out reactions with different constituents such as NO + CO, toluene, NO + toluene, and NO + CO + toluene in the presence of 6% O2 at 250 °C to evaluate the activity of porous catalysts. The properties of the catalysts were analyzed by X-ray powder diffractometer (XRD), a field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM), and an X-ray energy dispersive spectrometer (EDS). The cobalt catalysts supported on rice-husk-based carbon activated by CO2 and those on commercial-activated-carbon re-treated by KOH showed 100% conversion on toluene oxidation. CNT-cobalt catalyst showed 63% NO conversion with CO and 46% with toluene at 250 °C. Among the six porous supported catalysts, the cobalt catalysts prepared with CNT and rice-husk-derived carbon by using CO2 showed the best catalytic activity and thermal stability when compared to the others.

Keywords
Porous carbon; Carbon nanotube; Carbonization; Catalyst
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Catalytic treating of gas pollutants over cobalt catalyst supported on porous carbons derived from rice husk and carbon nanotube
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 90, Issues 3–4, 17 August 2009, Pages 652–661
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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