Anti-coking and anti-sintering ni/al2o3 catalysts in the dry reforming of methane: Recent progress and prospects

Abstract

Coking and metal sintering are limitations of large-scale applications of Ni/Al2O3 catalysts in DRM reactions. In this review, several modification strategies to enhance the anti-deactivation property of Ni/Al2O3 are proposed and discussed with the recently developed catalyst systems, including structure and morphology control, surface acidity/basicity, interfacial engineering and oxygen defects. In addition, the structure–performance relationship and deactivation/anti-deactivation mechanisms are illustrated in depth, followed by prospects for future work. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.