Synthesis of liquid fuel (C₅₊ hydrocarbons) via CO₂ hydrogenation generally involves cascade catalysis of reverse water gas shift (RWGS) and Fischer-Tropsch synthesis (FTS) reactions over heterogeneous catalysts. Because of thermodynamic limitations of the cascade reactions, the reported heterogeneous catalysts usually suffer from high temperature (above 300°C) and low selectivity. Here, we report the liquid fuel production from CO₂ hydrogenation by coupling homogeneous RuCl₃ and heterogeneous Ru⁰ catalysts, which proceeded at the lowest temperature reported so far (180°C) and reached the highest C₅₊ selectivity to date (71.1%). The TOF of the CO₂ hydrogenation reached 9.5 h⁻¹, which is comparable with that of the reported Ru⁰ catalyzed FTS reaction using syngas. Detailed study indicates that synergy of homogeneous and heterogeneous catalysis is the key for the outstanding performance.

通过CO ₂加氢合成液体燃料（C ₅₊碳氢化合物）通常涉及在异相催化剂上进行的反向水煤气变换（RWGS）和费托合成（FTS）反应的级联催化。由于级联反应的热力学限制，所报道的非均相催化剂通常遭受高温（高于300℃）和低选择性的困扰。在这里，我们报告了通过均相RuCl ₃和非均相Ru ⁰催化剂偶联从CO ₂加氢生产液体燃料的过程，该催化剂在迄今为止报道的最低温度（180°C）下进行，迄今为止达到了最高的C ₅₊选择性（71.1％）。 ）。CO ₂的TOF氢化达到9.5h ^-1，这与报道的使用合成气的Ru ⁰催化的FTS反应相当。详细的研究表明，均相和异相催化的协同作用是获得出色性能的关键。