Research Advances on Nitrogen-Doped Carbon Materials in CO[sub.x] Hydrogenation

The excessive consumption of fossil fuels has resulted in massive carbon emissions and serious ecological and environmental crises. Therefore, achieving the efficient utilization of waste carbon sources is considered as an important pathway to addressing the aforementioned issues in the context of carbon neutrality. Developing and designing suitable catalyst materials has become the key to converting CO[sub.x] into valuable platform chemicals and value-added liquid fuels (e.g., CO, CH[sub.4] , CH[sub.3] OH, and C[sub.2+] hydrocarbons). A moderate interaction between nitrogen-doped carbon materials and active metals is more favorable for the progress of the CO[sub.x] hydrogenation reaction compared to traditional metal oxide carriers. In this work, we comprehensively summarize the synthesis methods of N-doped carbon materials and the relevant research progress in the field of CO[sub.x] hydrogenation. In addition, a general assessment of carbon-based catalysts for CO[sub.x] hydrogenation reactions, concerning the support and metal properties, the activity and product selectivity, and their interactions is systematically discussed. Finally, this review discusses the roles of N-doped carbon materials, the current challenges, and future development directions.