Author/Authors :
Mohamad, Imran Syakir Universiti Teknikal Malaysia Melaka - Faculty of Mechanical Engineering, Malaysia , Mohd Husin, Mohd Haizal Universiti Teknikal Malaysia Melaka - Faculty of Mechanical Engineering, Malaysia , Herawan, Safarudin Gazali Universiti Teknikal Malaysia Melaka - Faculty of Mechanical Engineering, Malaysia , bin Hassan, Muhamad Zahir Universiti Teknikal Malaysia Melaka - Faculty of Mechanical Engineering, Malaysia , Nordin, Mohd. Ridzuan Universiti Malaysia Pahang, - Centre for Graduate Studies, Malaysia , Abu Bakar, Wan Azelee Wan Universiti Teknologi Malaysia - Faculty of Science - Department of Chemistry, Malaysia , Buang, Nor Aziah Universiti Teknologi Malaysia - Faculty of Science - Department of Chemistry, Malaysia , Yacob, Abdul Rahim Universiti Teknologi Malaysia - Faculty of Science - Department of Chemistry, Malaysia
Abstract :
Tin (IV) oxide has been recognized as an alternative catalystfor carbon monoxide gas treatmentgenerated from vehicular and industrial activities. Carbon monoxide is a poisonous gas produce from incomplete burning of hydrocarbon based fuel and emitted directly from vehicles tailpipes which can affect human health. In this research, tin (IV) oxide was used as a catalyst with the addition of cobalt (II) oxide and nickel (II) oxide as dopants, prepared by modification of sol-gel method. The catalytic ability was tested towards the oxidation of carbon monoxide using Continuous Fixed Bed Reactor (SELOX) instrument. Two catalysts, ECAT1-400 calcined at 400°C and ECAT2-600 calcined at 600°C gave a promising catalytic ability towards carbon monoxide oxidation. Both catalysts completed the carbon monoxide oxidation to carbon dioxide at 215°C and 200°C (commercial catalyst, Pt/ Al203 at 200°C). Several techniques were used in this research to characterize the physical and chemical properties of the catalyst materials. The nitrogen adsorption analysis reveals that the best prepared catalyst, ECAT2-600 is in form of mesopore, opencylindrical in shaped with pore diameter ofl0nm. The x-ray diffraction analysis showsthe presence of SnO2 tetragonal and CO3O4 cubicphase whichactas the active site in the catalyticoxidation. Theexistence of cobalt oxide(in a mixture of C02+ and CO3+) expected to contributethe excellent oxidation of carbon monoxide.
