FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4294145105> ?p ?o ?g. }

• W4294145105 endingPage "102208" @default.
• W4294145105 startingPage "102208" @default.
• W4294145105 abstract "Direct conversion of carbon dioxide (CO 2 ) to high added-value chemicals is available for reducing reliance on fossil fuels and mitigating CO 2 emissions, but both the chemical inertness of CO 2 and the difficulty of carbon chain growth make it difficult to enhance the activity of the catalyst. In this work, we developed a multifunctional catalyst composed of K-promoted spinel structured CoFeOx and HZSM-5 that efficiently converted CO 2 to light-weight hydrocarbons via CO 2 modified Fischer-Tropsch synthesis path (CO 2 -FTS), and the best catalyst exhibited a remarkably efficient CO 2 conversion of 51.2% and liquid hydrocarbons space-time yield (STY) of 3.4 μmol C5+ ·g cat −1 ·s −1 along with an extremely low selectivity of 5.5% toward undesired CO. By analysis of structural characterizations and reaction results, the noticeable performance of the multifunctional catalyst critically lies in the beneficial interaction between Co and Fe, the promoting effect of potassium, and the concertedly synergistic effect between K-CoFeOx and HZSM-5. In situ XRD, XPS, and TPD characterizations further indicate that the introduction of cobalt promotes the reduction of iron by forming a Fe 0 -rich FeCo alloy, which is beneficial for the adsorption of intermediate CO and facilitates the in situ generation of active iron carbide. K as an electronic promoter is added to increase the surface basicity, enhance the adsorption of CO 2 and weaken the adsorption of H 2 , which favor CO 2 conversion and carbon chain growth. Additionally, through passivation of the strong acidic site of HZSM-5 by Si treatment and varying the mixing mode of HZSM-5 and nK-CoFeOx, the synergistic effect of the two components promotes CO 2 conversion and noteworthily increases the distribution of light-weight hydrocarbons, especially benzene, toluene, and xylene on composite catalyst by aromatization over active sites with appropriate acidity and proximity. This study provides valuable guidelines for designing selective and efficient iron-based composite catalysts to obtain value-added FTS products and light aromatics. During CO 2 hydrogenation, three types of active sites are thought to display cooperatively reinforced synergy: CO 2 is first reduced to CO by RWGS on Fe 3 O 4 sites, and then CO is hydrogenated to low carbon hydrocarbons via FTS on Fe 5 C 2 sites. The low carbon hydrocarbons intermediates are produced on the iron-based sites and subsequently migrate to zeolite acid sites, where they conduct acid-catalyzed processes, resulting in the formation of gasoline-range isoparaffins and aromatics, which eventually diffuse out of zeolite pores. • Fe-Co interaction promotes the adsorption and dissociation of CO intermediates and carburization of iron species. • The addition of K enhances CO 2 adsorption and weakens H 2 adsorption . • The synergy of different active sites is crucialin the tandem catalysis process. • Passivating zeolite acidity by Si treatment promotes the selectivity of liquid hydrocarbons. • 5 K-CoFeOx(1:5)/HZSM-5 exhibits exceptional high liquid hydrocarbons space-time yield at 51.2% CO 2 conversion." @default.
• W4294145105 created "2022-09-02" @default.
• W4294145105 creator A5000979147 @default.
• W4294145105 creator A5003777867 @default.
• W4294145105 creator A5014023117 @default.
• W4294145105 creator A5016162807 @default.
• W4294145105 creator A5016744162 @default.
• W4294145105 creator A5053191266 @default.
• W4294145105 creator A5058965019 @default.
• W4294145105 creator A5066730024 @default.
• W4294145105 creator A5082195266 @default.
• W4294145105 creator A5082802653 @default.
• W4294145105 date "2022-11-01" @default.
• W4294145105 modified "2023-10-16" @default.
• W4294145105 title "Direct conversion of carbon dioxide to liquid hydrocarbons over K-modified CoFeOx/zeolite multifunctional catalysts" @default.
• W4294145105 cites W1517326953 @default.
• W4294145105 cites W2017410634 @default.
• W4294145105 cites W2037446136 @default.
• W4294145105 cites W2051596037 @default.
• W4294145105 cites W2051939850 @default.
• W4294145105 cites W2078353661 @default.
• W4294145105 cites W2225025049 @default.
• W4294145105 cites W2296482843 @default.
• W4294145105 cites W2319195884 @default.
• W4294145105 cites W2519610508 @default.
• W4294145105 cites W2611869399 @default.
• W4294145105 cites W2624906538 @default.
• W4294145105 cites W2642691642 @default.
• W4294145105 cites W2744973938 @default.
• W4294145105 cites W2760633774 @default.
• W4294145105 cites W2769640447 @default.
• W4294145105 cites W2770562898 @default.
• W4294145105 cites W2803207118 @default.
• W4294145105 cites W2888756095 @default.
• W4294145105 cites W2898240707 @default.
• W4294145105 cites W2900843895 @default.
• W4294145105 cites W2904840795 @default.
• W4294145105 cites W2924240117 @default.
• W4294145105 cites W2925098446 @default.
• W4294145105 cites W2946700511 @default.
• W4294145105 cites W2947797624 @default.
• W4294145105 cites W2949029923 @default.
• W4294145105 cites W2980202423 @default.
• W4294145105 cites W2988427842 @default.
• W4294145105 cites W3006747541 @default.
• W4294145105 cites W3007469400 @default.
• W4294145105 cites W3008651892 @default.
• W4294145105 cites W3024631293 @default.
• W4294145105 cites W3035204651 @default.
• W4294145105 cites W3041050590 @default.
• W4294145105 cites W3048514706 @default.
• W4294145105 cites W3081367566 @default.
• W4294145105 cites W3083013901 @default.
• W4294145105 cites W3088850880 @default.
• W4294145105 cites W3090766581 @default.
• W4294145105 cites W3093003496 @default.
• W4294145105 cites W3098755888 @default.
• W4294145105 cites W3116487054 @default.
• W4294145105 cites W3124905479 @default.
• W4294145105 cites W3133893415 @default.
• W4294145105 cites W3145812150 @default.
• W4294145105 cites W3169081475 @default.
• W4294145105 cites W3178846510 @default.
• W4294145105 cites W3182322960 @default.
• W4294145105 cites W3194716506 @default.
• W4294145105 cites W3203301257 @default.
• W4294145105 cites W3206091109 @default.
• W4294145105 cites W3213376219 @default.
• W4294145105 cites W4200181443 @default.
• W4294145105 doi "https://doi.org/10.1016/j.jcou.2022.102208" @default.
• W4294145105 hasPublicationYear "2022" @default.
• W4294145105 type Work @default.
• W4294145105 citedByCount "8" @default.
• W4294145105 countsByYear W42941451052023 @default.
• W4294145105 crossrefType "journal-article" @default.
• W4294145105 hasAuthorship W4294145105A5000979147 @default.
• W4294145105 hasAuthorship W4294145105A5003777867 @default.
• W4294145105 hasAuthorship W4294145105A5014023117 @default.
• W4294145105 hasAuthorship W4294145105A5016162807 @default.
• W4294145105 hasAuthorship W4294145105A5016744162 @default.
• W4294145105 hasAuthorship W4294145105A5053191266 @default.
• W4294145105 hasAuthorship W4294145105A5058965019 @default.
• W4294145105 hasAuthorship W4294145105A5066730024 @default.
• W4294145105 hasAuthorship W4294145105A5082195266 @default.
• W4294145105 hasAuthorship W4294145105A5082802653 @default.
• W4294145105 hasConcept C127413603 @default.
• W4294145105 hasConcept C161790260 @default.
• W4294145105 hasConcept C178790620 @default.
• W4294145105 hasConcept C185592680 @default.
• W4294145105 hasConcept C192562407 @default.
• W4294145105 hasConcept C2777207669 @default.
• W4294145105 hasConcept C2778077586 @default.
• W4294145105 hasConcept C42360764 @default.
• W4294145105 hasConcept C530467964 @default.
• W4294145105 hasConceptScore W4294145105C127413603 @default.
• W4294145105 hasConceptScore W4294145105C161790260 @default.
• W4294145105 hasConceptScore W4294145105C178790620 @default.
• W4294145105 hasConceptScore W4294145105C185592680 @default.

• next