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Catalysts 2012, 2(4), 447-465; doi:10.3390/catal2040447

Carbon Xerogel Catalyst for NO Oxidation

 and *
Received: 20 July 2012 / Revised: 28 September 2012 / Accepted: 9 October 2012 / Published: 17 October 2012
(This article belongs to the Special Issue Aerogel Catalyst)
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Abstract: Carbon xerogels were prepared by the polycondensation of resorcinol and formaldehyde using three different solution pH values and the gels were carbonized at three different temperatures. Results show that it is possible to tailor the pore texture of carbon xerogels by adjusting the pH of the initial solution and the carbonization temperature. Materials with different textural properties were obtained and used as catalysts for NO oxidation at room temperature. The NO conversions obtained with carbon xerogels were quite high, showing that carbon xerogels are efficient catalysts for NO oxidation. A maximum of 98% conversion for NO was obtained at initial concentration of NO of 1000 ppm and 10% of O2. The highest NO conversions were obtained with the samples presenting the highest surface areas. The temperature of reaction has a strong influence on NO oxidation: the conversion of NO decreases with the increase of reaction temperature.
Keywords: carbon xerogels; textural properties; surface chemistry; NO oxidation; catalytic activity carbon xerogels; textural properties; surface chemistry; NO oxidation; catalytic activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Sousa, J.P.S.; Pereira, M.F.R.; Figueiredo, J.L. Carbon Xerogel Catalyst for NO Oxidation. Catalysts 2012, 2, 447-465.

AMA Style

Sousa JPS, Pereira MFR, Figueiredo JL. Carbon Xerogel Catalyst for NO Oxidation. Catalysts. 2012; 2(4):447-465.

Chicago/Turabian Style

Sousa, Juliana P. S.; Pereira, Manuel F. R.; Figueiredo, José L. 2012. "Carbon Xerogel Catalyst for NO Oxidation." Catalysts 2, no. 4: 447-465.

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