Nanostructured Pd modified Ni/CeO2 catalyst for water gas shift and catalytic hydrogen combustion reaction

► Pd modified Ni/CeO2 catalyst was synthesized and characterized. ► Catalyst is highly active and 100% selective for H2 production. ► Enhancement in WGS activity is due to change in the reducibility of support. ► Redox reaction mechanism was used to correlate data.