Effect of synthesis route on catalytic properties and performance of Co3O4/TiO2 for carbon monoxide and hydrocarbon oxidation under real engine operating conditions

With increase in urbanization and consequent growth in vehicular fleets, resulting air pollution is becoming a serious problem for urban environment. One of the technological options to control vehicular emissions is catalytic converters. Here we report catalytic converter based on Co3O4/TiO2 as catalyst with stainless steel wire mesh as a substrate. Catalyst was prepared by wet impregnation and incipient wetness impregnation methods. Catalyst was tested for oxidation of CO and HC present in the tailpipe emissions of 125 cm(3) engine. The conversion efficiencies were superior in catalysts prepared with incipient wetness impregnation method as compared to wet impregnation method. (C) 2016 Elsevier B.V. All rights reserved.