TY - JOUR
T1 - Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation
AU - Corro, Grisel
AU - Cebada, Surinam
AU - Pal, Umapada
AU - Fierro, Jose Luis García
AU - Alvarado, Josefina
PY - 2015/4/1
Y1 - 2015/4/1
N2 - Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.
AB - Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.
KW - Cold engine diesel emissions
KW - Cu/ZnO composite catalyst
KW - Cu1+
KW - Diesel particulate matter oxidation
UR - http://www.mendeley.com/research/hydrogenreduced-cuzno-composite-efficient-reusable-catalyst-diesel-particulate-matter-oxidation
U2 - 10.1016/j.apcatb.2014.10.048
DO - 10.1016/j.apcatb.2014.10.048
M3 - Article
VL - 165
SP - 555
EP - 565
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
SN - 0926-3373
ER -