High surface area mixed oxide 8.7% NiO-CeO2 nanoparticles (122 m2/g; 6–7 nm) were prepared using a reversed microemulsion method, and tested for dry methane reforming (DRM). The catalytic activity of these remains stable under the severe conditions DRM (700 °C), they show better carbon resistance than conventional catalysts without control size. selectivity reference catalyst are similar, but r...