Manufacture of highly loaded silica-supported cobalt Fischer–Tropsch catalysts from a metal organic framework

Sun, Xiaohui; Suarez, Alma I. Olivos; Meijerink, Mark J.; Deelen, Tom Van; Ould‐Chikh, Samy; Zečević, Jovana; Jong, Krijn P. de; Kapteijn, Freek; Gascón, Jorge

doi:10.1038/s41467-017-01910-9

Cited by 150 publications

(131 citation statements)

References 54 publications

(58 reference statements)

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“…) . Condensation of silica in the Co‐containing ZIF‐67 followed by pyrolysis and subsequent calcination gave highly loaded Co nanocomposites with 50 wt % Co showing a Co reducibility of 80 % and a good selectivity for C 5+ in Fischer‐Tropsch reaction . Following the same concept, just recently well dispersed and easily accessible Co nanoparticles and atoms in a carbon matrix have been prepared by pyrolysis of a MOF as precursor.…”

Section: Recent Developments and Recordsmentioning

confidence: 99%

Quo Vadis, MOF?

Caro

2018

Chemie Ingenieur Technik

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Metal‐organic frameworks (MOFs) show world records in BET surface and specific pore volume. An impressive number of different MOF structures has been developed in the last 15 years. In numerous reviews, MOFs are predicted to substitute zeolites and other molecular sieves in big adsorption, permeation and heterogeneous catalysis applications. This short review critically highlights some prominent MOF properties like pore volume and BET surface. It is predicted, that commercialization of MOFs will takes place first in small niche applications, and – if successful – the big processes will follow.

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Section: Recent Developments and Recordsmentioning

confidence: 99%

Quo Vadis, MOF?

Caro

2018

Chemie Ingenieur Technik

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“…In contrast, larger particles which form in the larger pore size in CSsyn can be more easily reduced. Consequently, the reducibility of cobalt oxide in the catalyst is depended on the pore size of catalyst support (Riva et al, 2000;Sun et al, 2017).…”

Section: Fig 4: H2-tpr Profiles Of Cobalt Supported Catalystsmentioning

confidence: 99%

Pore size effect of mesoporous support on metal particle size of Co/SiO2 catalyst in Fischer-Tropsch synthesis

al.¹

2018

Int. j. adv. appl. sci.

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Fischer Tropsch (FT) synthesis is an alternative route to produce ultrahigh pure hydrocarbon fuels. The length of hydrocarbon chain produced from FT synthesis taking place over the cobalt supported catalysts is depended upon the reactant and product diffusion as well as the metal particle size of the catalyst. Some works were reported that the pore size diameter of the support can control the metal dispersion. Therefore, the pore size can be considered as an important parameter for supported FT catalysts. This work aims to study the effect of pore size of mesoporous silica on metal particle size of cobalt-based catalysts and FT performance. The synthesized silica with the average pore size diameter of 7.2 nm and the commercial silica with the average diameter of 6.7 nm were used as supports to prepare CS catalyst samples. The cobalt supported on synthesized SiO2 shows larger cobalt oxide particle with lower dispersion compared to the results of the catalyst prepared using the commercial silica. Large cobalt oxide particle of supported catalyst decreases the interaction between metal and support which results in the increasing reducibility of cobalt oxide species and provides large cobalt metal particle after the reduction process. The FT tests were carried out under atmospheric pressure at 220 ᵒC, GHSV of 300 h -1 and H2/CO feed ratio of 2. The enhancement of selectivity towards long chain hydrocarbons (C5 + ) and FT activity were obtained from the catalyst with larger cobalt particle size. The growth of hydrocarbon chain during polymerization can be facilitated by the large surface of active site formed in the large pore size of support. Thus, the pore size diameter of support is an important key for the FT catalytic performance of cobalt catalyst supported on mesoporous silica materials.

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“…Increasing attention to the availability of fossil materials and their impact on the environment has driven many alternative routes to produce sustainable fuels from synthesis gas (H 2 and CO) derived from natural gas, coal or biomass . Fischer‐Tropsch synthesis (FTS) is a heterogeneously catalyzed process for converting synthesis gas to the liquid fuels and valuable chemicals that meet future energy demands …”

Section: Introductionmentioning

confidence: 99%

Morphology Evolution of Hcp Cobalt Nanoparticles Induced by Ru Promoter

Liu

Qin

et al. 2020

ChemCatChem

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The modification of the equilibrium morphology to expose active facets of cobalt nanoparticles is essential for tailoring and controlling its catalytic performance. Periodic density functional theory (DFT) was applied to systematically investigate the structure and stability of exposed facets of hcp Co nanoparticles induced by Ru promoter in order to clarify the facet‐dependent equilibrium morphology of hcp Co nanoparticles stabilized by Ru promoter. The adsorption and migration of Ru atom can give rise to the change of the surface energy of exposed facets, thus affecting the equilibrium morphology of the hcp Co nanoparticles. Selectively exposed the high Miller index facets, such as Co(10‐12), Co(11‐20) and Co(11‐21) surfaces, can be tuned by adding Ru promoter. Our theoretical calculation results show that Co(11‐21) becomes the predominantly exposed facet accompanied with the decrease of exposed Co(10‐10) and Co(10‐11) with the increase of Ru loading. Further experimental studies suggest that the area of selectively exposed the Co(10‐11) surface for uniform Co nanoplates loaded with 3.0 wt % Ru will be reduced, which is in agreement with the theoretical predicted result. This work is helpful to design the desired Co‐based FTS catalysts rationally with well‐controlled surface structure.

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Manufacture of highly loaded silica-supported cobalt Fischer–Tropsch catalysts from a metal organic framework

Cited by 150 publications

References 54 publications

Quo Vadis, MOF?

Quo Vadis, MOF?

Pore size effect of mesoporous support on metal particle size of Co/SiO2 catalyst in Fischer-Tropsch synthesis

Morphology Evolution of Hcp Cobalt Nanoparticles Induced by Ru Promoter

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