Highly stable and active Ni-mesoporous alumina catalysts for dry reforming of methane

► Nanostructured Ni-incorporated mesoporous alumina catalysts. ► Catalysts for CO2 reforming of methane under various conditions. ► Catalysts show high activity and stability over 200 h ► Ni nanoparticles confined to mesopores resistant to sintering and migration. ► Catalysts showed low inactive carbon deposition.