Selective catalytic reduction of NOx by CO (CO-SCR) over metal-supported nanoparticles dispersed on porous alumina
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Advanced Powder Technology
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The selective catalytic reduction of NOx by CO (CO-SCR) was investigated over metals supported on porous
alumina. The Pt, Co, Fe and Ni nanoparticles were dispersed on the alumina and characterized by
XRD, textural properties, FTIR spectroscopy, chemical analyses, Py adsorption followed by FTIR measurements,
HRTEM and SEM-EDS. Among the solids studied, the Pt/Al2O3 and NiPt/Al2O3 catalysts exhibited
improved performance due to the interaction and synergy between the Pt(Ni) nanoparticles and the support.
In other words, the electron transfer facility between the PtOx(Ni) and chlorined Pt species on the
support provided a more active solid in the CO-SCR reaction. The surface acidity of Lewis acid sites
and the porous features of the Pt/Al2O3 and NiPt/Al2O3 catalysts also contributed significantly to the high
performance of these materials in the NOx conversion. The Pt/Al2O3 and NiPt/Al2O3 catalysts were tolerant
to the poisoning by SO2 and H2O and depicted a superior catalytic performance, compared to the
other solids.
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OTON, LAIS F.; OLIVEIRA, ALCINEIA C.; ARAUJO, JESUINA C.S. de; ARAUJO, RINALDO S.; SOUSA, FRANCISCO F. de; SARAIVA, GILBERTO D.; LANG, ROSSANO; OTUBO, LARISSA; DUARTE, GIAN C. da S.; CAMPOS, ADRIANA. Selective catalytic reduction of NOx by CO (CO-SCR) over metal-supported nanoparticles dispersed on porous alumina. Advanced Powder Technology, v. 31, n. 1, p. 464-476, 2020. DOI: 10.1016/j.apt.2019.11.003. Disponível em: http://repositorio.ipen.br/handle/123456789/31331. Acesso em: 05 May 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.