Design of ultra-active iron-based Fischer-Tropsch synthesis catalysts over spherical mesoporous carbon with developed porosity

Mn–Fe nanoparticles on a reduced graphene oxide catalyst for enhanced olefin production from syngas in a slurry reactor

“…[5][6][7] They also give high water gas shi reaction (WGSR) activities, rendering them more exible in processing syngas streams with various H 2 : CO ratios. [8][9][10][11] However, further enhancement of their orientation towards light olens is required if more competitive systems are to be designed. The common strategy for achieving this goal is via promotion of the Fe catalyst systems.…”

“…Extensive research has been done over the years for various mixtures and combinations of Mn with alkali metals on various supporting materials for this purpose. 5,8,15,16 Other promoters used for olen enhancement include Zn and Mg. 6,7,12,17 Mn is known to increase the olen selectivity by increasing dissociative CO adsorption on the catalyst surface whilst reducing H 2 adsorption. 16,18 This chokes off the hydrogenation reactions which are responsible for converting the olens to paraffins.…”

“…Support materials including ceramic-silica, 20 alumina, 21 zeolites, 22 and titania 23 were intensively used to support Fe NPs. Considering the strong metalsupport interactions (SMSI), 8 other supports were developed using carbon-based materials like activated carbon, carbon nanotubes (CNTs) 5,16 and graphene. 24,25 Carbon supports are linked to the Fe particles by weaker bonds which allow for higher catalyst activity and stability at the right set of operating conditions.…”

Interfacial CoOx Layers on TiO2 as an Efficient Catalyst for Solvent‐Free Aerobic Oxidation of Hydrocarbons

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] The interface between the metal oxide and the active sites is crucial for the adsorption/activation of reactants/intermediates, and the improvedp erformancec an be appliedt oc atalyzev arious industrial reactions such as CO 2 reduction, [1,2] water-gas shift, [3,4] CO oxidation, [7][8][9][10] methane reforming, [11][12][13] and Fischer-Tropsch synthesis. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] The interface between the metal oxide and the active sites is crucial for the adsorption/activat...…”

“…Metal nanostructures supportedo nt he surfaceo fm etal oxides have emerged as efficient heterogeneous catalysts for sustainable productiono fc hemicals and fuels. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] The interface between the metal oxide and the active sites is crucial for the adsorption/activation of reactants/intermediates, and the improvedp erformancec an be appliedt oc atalyzev arious industrial reactions such as CO 2 reduction, [1,2] water-gas shift, [3,4] CO oxidation, [7][8][9][10] methane reforming, [11][12][13] and Fischer-Tropsch synthesis. [17][18][19] In-depthk nowledge about the nature of an interface could provide ac onceptual link between its structure and performance, thereby facilitating the development of betterh eterogeneous catalysts.…”