Oschatz M, Krause S, Krans N A, Hernández Mejía C, Kaskel S, de Jong K P
Utrecht University, Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.
Chem Commun (Camb). 2017 Sep 12;53(73):10204-10207. doi: 10.1039/c7cc04877g.
Iron-based metal-organic frameworks (MOFs) with varying porosity are converted by pyrolysis into iron/carbon catalysts with predetermined composition and tailored pore structural features for the Fischer-Tropsch synthesis of lower C-C olefins. Significantly higher activity arises for catalysts with higher porosity and decreased iron particle size derived from hierarchical MOF xerogel/aerogel precursors as compared to a purely microporous MOF. Post-synthetic functionalization using sodium and sulfur promoters further enhances the catalytic properties.
具有不同孔隙率的铁基金属有机框架材料（MOF）通过热解转化为具有预定组成和定制孔结构特征的铁/碳催化剂，用于费托合成低级碳-碳烯烃。与纯微孔MOF相比，由分级MOF干凝胶/气凝胶前驱体制备的具有更高孔隙率和减小的铁颗粒尺寸的催化剂表现出显著更高的活性。使用钠和硫促进剂进行合成后功能化进一步提高了催化性能。
