Co,Ba,K/ZrO2 coating stainless steel foam for the catalytic combustion of soot

EZEQUIEL D. BANÚS; VIVIANA G. MILT; EDUARDO E. MIRÓ; MARÍA ALICIA ULLA

San Francisco, California, Estados Unidos.

Congreso; 21st North American Catalysis Society Meeting; 2009

Diesel vehicles are very popular nowadays due to their economy and efficiency, but they produce two contaminants which are dangerous for humans and for the environment: soot and NOX. Soot consists of particles of carbon that have adsorbed unburned hydrocarbons, water and sulfur and they are dangerous for health due to their small size [2]. NOX is produced either by the oxidation of the nitrogen of the air or by the oxidation of nitrogen compounds present in the fuel. It contributes to the formation of acid rain and smog in the environment.One way of reducing these contaminants is using catalytic filters that should exhibit mechanical, chemical and physical properties to resist the conditions present in an exhaust pipe.In this work, stainless steel foam is used as a structured support and the Co,Ba,K/ZrO2 catalyst (previously tested as a good powder catalyst) is coated on it.