SciELO - Scientific Electronic Library Online

 
vol.27 número3O emprego de fermento de pão, Saccharomyces cerevisiae, na síntese de feromôniosContaminação de águas por BTXs e processos utilizados na remediação de sítios contaminados índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Química Nova

versão impressa ISSN 0100-4042

Resumo

DIAZ CONSUL, Julia María et al. Catalytic decomposition of nitrogen oxides. Quím. Nova [online]. 2004, vol.27, n.3, pp. 432-440. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422004000300013.

Contaminant gases in the atmosphere constitute an important problem to be solved in the world. The NOx gases produced as a consequence of engine high temperatures are deleterious to environment and human health, as they promote acid rain and can act in the same way as freons in the destruction of the ozone layer in the stratosphere. In this review, three way and selective reduction catalysts for decomposition of these contaminant gases are described. Details about conditions and problems, such as catalyst poisoning, and the search for new catalysts are shown.

Palavras-chave : NOx; NO selective reduction; three-way catalyst.

        · texto em Português     · pdf em Português