Effect of Ni precursors on the catalytic activity of Ni/CeO2 for nitrogen oxide to ammonia reaction

Ni/CeO2 catalysts was prepared using different Ni precursors and examined for nitrogen oxide to ammonia reaction. The catalyst prepared from nickel acetate showed higher activity than that of other Ni precursors. The physiochemical properties and catalytic activity of these catalysts revealed that nickel acetate precursor was highly dispersed on the surface of CeO2 and showed strong metal-support interactions which may be responsible for high catalytic activity.