【科技日报】煤化工高效稳定催化剂成功研制

Core Insights - The research team from the Shanxi Coal Chemistry Research Institute has made significant progress in the hydrogenation of α-olefins, paving a new path for the transformation of coal into high-end chemicals [1][2] - The study highlights the potential of using cobalt-based catalysts, which are more cost-effective than traditional rhodium and cobalt catalysts, to enhance the efficiency of the hydrogenation process [1][2] Group 1: Research Findings - The synthesis gas generated from coal or biomass gasification can produce a range of α-olefins through iron-based Fischer-Tropsch synthesis, which can then be converted into long-chain fatty aldehydes via hydrogenation, serving as key raw materials for fragrances, pharmaceuticals, and surfactants [1] - Current industrial catalysts face challenges such as harsh reaction conditions and difficulties in separating substrates from catalysts, with cobalt-based catalysts showing greater potential despite lower activity compared to rhodium-based catalysts [1] Group 2: Innovative Solutions - The research team proposed a new approach by constructing a "cobalt-molybdenum carbide interface," optimizing the interface structure by controlling the morphology and thickness of molybdenum carbide [2] - Two efficient interface sites were developed: one is the Co-MoOx site formed by partially oxidized molybdenum carbide nanoparticles and cobalt particles, which significantly reduces the energy barrier and increases the reaction rate by 10.7 times compared to traditional cobalt-based catalysts [2] - The second site, Co-Mo2C, is formed by a molybdenum carbide nanosheet and cobalt atoms, which effectively addresses catalyst loss issues and greatly enhances reaction stability [2]