1684
Ind. Eng. Chem. Res. 2008, 47, 1684-1688
Microreactors for Syngas Conversion to Higher Alkanes: Effect of Ruthenium on Silica-Supported Iron-Cobalt Nanocatalysts Shihuai Zhao,†,‡ Venkata S. Nagineni,§ Naidu V. Seetala,| and Debasish Kuila*,†,§,⊥ Institute for Micromanufacturing and Chemistry Program, Louisiana Tech UniVersity, Ruston, Louisiana 71272, Department of Physics, Grambling State UniVersity, Grambling, Louisiana 71245, and Department of Chemistry, North Carolina A&T State UniVersity, Greensboro, North Carolina 27411
The effect of ruthenium (Ru, 0.4 wt %) as a promoter on silica-supported iron and cobalt nanocatalysts (∼3 wt % each) for syngas (H2 and CO) conversion to higher alkanes was studied in a silicon microreactor. Fe-Co/SiO2 catalysts with and without Ru were synthesized by a sol-gel methods. The high specific surface area (325 m2/g) from BET analysis can be attributed to the porous structure of silica supported by its SEM images. The FE-STEM image indicated that the catalyst particle size is
