Rose-Like 2D Layered Silicate Supported Fe3O4 Catalysts for Improved Selectivity Toward Olefins in CO Hydrogenation

Abstract

Hydrophilic 2D layered silicate supported Fe 3 O 4 catalyst (Fe 3 O 4 /2D-LS) was prepared by an impregnation method and showed greatly improved olefin selectivity in CO hydrogenation. The olefin ratio (O/P) on Fe 3 O 4 /2D-LS was increased from 0.50 to 6.05 compared with that of single Fe 3 O 4 . Surprisingly, the Fe 3 O 4 /2D-LS catalysts had an enhanced chain growth ability and promoted the formation of linear α-olefin in C 5 + hydrocarbons increasing from 33.5 to 72.5%. Characterizations showed that layered structure and hydrophilic properties maintained during a CO hydrogenation test. The Fe 3 O 4 supported 2D-LS was easier to reduction and promoted the CO adsorption. The hydroxyl groups on the 2D-LS detected by CA and Zeta may help to increase the selectivity of olefin by inhibiting the secondary reaction of primary olefins.

Growth of Laser-Induced Microbubbles inside Capillary Tubes Affected by Gathered Light-Absorbing Particles

“…For Fe 3 O 4 , the typical value of θ c 0 is 85.36° [ 43 ] and F st is ~1 mN. F d can be calculated using Stokes’ law as follows: …”