Reactivity of C3Hx Adsorbates in Presence of Co-adsorbed CO and Hydrogen: Testing Fischer–Tropsch Chain Growth Mechanisms

Weststrate, C.J.; Sharma, Devyani; Rodríguez, Daniel García; Gleeson, M.A.; Fredriksson, Hans; Niemantsverdriet, J.W.

doi:10.1007/s11244-020-01306-y

Cited by 2 publications

(1 citation statement)

References 41 publications

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“…S6), and W 5+ was increased from 17.1 to 24.6% in W 18 O 49 -NWs/rGO-1% after 20 min of light irradiation. More information about isopropanol dehydration was obtained from the in situ C 1s XPS spectra, and the enhanced peak at ~286.1 eV and new peak at ~283.1 eV assigned to C-O and -CHbonds [41][42][43] verified the successful isopropanol absorption on W 18 O 49 -NWs/rGO-1%. Under light irradiation, the intensity of the C-O bond weakened over time, indicating the reduction of absorbed isopropanol (isopropanol*).…”

Section: Catalytic Mechanism Of the Isopropanol Dehydration Reactionmentioning

confidence: 99%

Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration

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You

et al. 2022

Nat Commun

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Plasmonic hot carriers have the advantage of focusing, amplifying, and manipulating optical signals via electron oscillations which offers a feasible pathway to influence catalytic reactions. However, the contribution of nonmetallic hot carriers and thermal effects on the overall reactions are still unclear, and developing methods to enhance the efficiency of the catalysis is critical. Herein, we proposed a new strategy for flexibly modulating the hot electrons using a nonmetallic plasmonic heterostructure (named W18O49-nanowires/reduced-graphene-oxides) for isopropanol dehydration where the reaction rate was 180-fold greater than the corresponding thermocatalytic pathway. The key detail to this strategy lies in the synergetic utilization of ultraviolet light and visible-near-infrared light to enhance the hot electron generation and promote electron transfer for C-O bond cleavage during isopropanol dehydration reaction. This, in turn, results in a reduced reaction activation barrier down to 0.37 eV (compared to 1.0 eV of thermocatalysis) and a significantly improved conversion efficiency of 100% propylene from isopropanol. This work provides an additional strategy to modulate hot carrier of plasmonic semiconductors and helps guide the design of better catalytic materials and chemistries.

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Section: Catalytic Mechanism Of the Isopropanol Dehydration Reactionmentioning

confidence: 99%

Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration

Lü

You

et al. 2022

Nat Commun

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CO adsorption on Co(0001) revisited: High-coverage CO superstructures on the close-packed surface of cobalt

Weststrate

Niemantsverdriet

2022

Journal of Catalysis

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Reactivity of C3Hx Adsorbates in Presence of Co-adsorbed CO and Hydrogen: Testing Fischer–Tropsch Chain Growth Mechanisms

Cited by 2 publications

References 41 publications

Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration

Full-spectrum nonmetallic plasmonic carriers for efficient isopropanol dehydration

CO adsorption on Co(0001) revisited: High-coverage CO superstructures on the close-packed surface of cobalt

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