Carbon nanotubes and xerogels as supports of well-dispersed Pt catalysts for environmental applications

Different types of carbon materials including multi-walled nanotubes (MWNT), carbon xerogels (CX) and activated carbon (AC) were used as supports to prepare platinum catalysts (1% w/w), which were tested in the treatment of aqueous aniline solutions by catalytic wet air oxidation (CWAO). The prepare...

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Bibliographic Details
Published in:Applied catalysis. B, Environmental Environmental, 2004, Vol.54 (3), p.175-182
Main Authors: Gomes, H.T., Samant, P.V., Serp, Ph, Kalck, Ph, Figueiredo, J.L., Faria, J.L.
Format: Article
Language:English
Subjects:
Activated carbon
Aniline
Carbon supported catalysts
Carbon xerogels
Catalytic wet air oxidation (CWAO)
Multi-walled carbon nanotubes (MWNT)
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Summary:Different types of carbon materials including multi-walled nanotubes (MWNT), carbon xerogels (CX) and activated carbon (AC) were used as supports to prepare platinum catalysts (1% w/w), which were tested in the treatment of aqueous aniline solutions by catalytic wet air oxidation (CWAO). The prepared materials and catalysts were characterized by several techniques (SEM/EDS, TEM, N 2 adsorption, TPD and H 2 chemisorption). All catalysts presented a very high activity for the removal of aniline and total organic carbon (TOC). Catalyst activity and selectivity toward CO 2 formation were found to depend on the nature of the support and concentration of oxygen containing functional groups on the surface of the materials.
ISSN:0926-3373
1873-3883
DOI:10.1016/j.apcatb.2004.06.009