Matches in SemOpenAlex for { <https://semopenalex.org/work/W3192947757> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W3192947757 endingPage "2295" @default.
- W3192947757 startingPage "2287" @default.
- W3192947757 abstract "Pt/ZrO2 catalysts promoted with MoO3 and Nb2O5 were tested for the combustion of short-chain alkanes (namely, methane, ethane, propane, and n-hexane). For short-chain alkane combustion, the inhibition of MoO3 (for the methane reaction) dramatically transformed to promotion (for the ethane, propane, and n-hexane reactions) as the carbon chain length increased, whereas the remarkable promotion of Nb2O5 gradually weakened with an increase in the carbon chain length. Based on a detailed study of the oxidation reactions of methane and propane over the catalysts, the different roles of the promoters in the reactions were ascribed to differences in the acidic properties of the surface and the oxidation or reduction states of the Pt species. The MoO3 promoter could decorate the surface of the Pt species for a Pt-Mo/ZrO2 catalyst, whereas the Nb2O5 promoter on the support could be partially covered by Pt particles for a Pt-Nb/ZrO2 catalyst. The formation of accessible Pt-MoO3 interfacial sites, a high concentration of metallic Pt species, and a high surface acidity in Pt-Mo/ZrO2 were responsible for the enhanced activity for catalytic propane combustion. The lack of enough accessible Pt-Nb2O5 interfacial sites but an enhanced surface acid sites in Pt-Nb/ZrO2 explained the slight improvement in activity for catalytic propane combustion. However, the stabilized Ptn+ species in Pt-Nb/ZrO2 were responsible for the much-improved activity for methane combustion, whereas the Ptn+ species in Pt-Mo/ZrO2 could be reduced during the oxidation reaction, and the fewer exposed surface Pt species because of MoO3 decoration accounted for the inhibited activity for methane combustion. In addition, it can be concluded that MoO3 promotion is favorable for the activation of C–C bonds, whereas Nb2O5 promotion is more beneficial for the activation of C–H bonds with high energy." @default.
- W3192947757 created "2021-08-16" @default.
- W3192947757 creator A5024493711 @default.
- W3192947757 creator A5032593086 @default.
- W3192947757 creator A5046377738 @default.
- W3192947757 creator A5073327182 @default.
- W3192947757 creator A5086311719 @default.
- W3192947757 date "2021-12-01" @default.
- W3192947757 modified "2023-10-15" @default.
- W3192947757 title "Different roles of MoO3 and Nb2O5 promotion in short-chain alkane combustion over Pt/ZrO2 catalysts" @default.
- W3192947757 cites W1967512786 @default.
- W3192947757 cites W1981862023 @default.
- W3192947757 cites W1989574432 @default.
- W3192947757 cites W1998831406 @default.
- W3192947757 cites W2025508283 @default.
- W3192947757 cites W2026958243 @default.
- W3192947757 cites W2046990381 @default.
- W3192947757 cites W2076695577 @default.
- W3192947757 cites W2078545637 @default.
- W3192947757 cites W2400628662 @default.
- W3192947757 cites W2614704405 @default.
- W3192947757 cites W2769640447 @default.
- W3192947757 cites W2769683773 @default.
- W3192947757 cites W2808864921 @default.
- W3192947757 cites W2884714030 @default.
- W3192947757 cites W2890779721 @default.
- W3192947757 cites W2910277702 @default.
- W3192947757 cites W2918020190 @default.
- W3192947757 cites W2933127534 @default.
- W3192947757 cites W2936916655 @default.
- W3192947757 cites W2942013312 @default.
- W3192947757 cites W2984333031 @default.
- W3192947757 cites W3006129254 @default.
- W3192947757 cites W3017133002 @default.
- W3192947757 cites W3023266851 @default.
- W3192947757 cites W3040292672 @default.
- W3192947757 cites W3040666323 @default.
- W3192947757 cites W3041299120 @default.
- W3192947757 cites W3048755176 @default.
- W3192947757 cites W3048763487 @default.
- W3192947757 cites W3049681899 @default.
- W3192947757 cites W3094958763 @default.
- W3192947757 cites W3095203849 @default.
- W3192947757 doi "https://doi.org/10.1016/s1872-2067(20)63771-8" @default.
- W3192947757 hasPublicationYear "2021" @default.
- W3192947757 type Work @default.
- W3192947757 sameAs 3192947757 @default.
- W3192947757 citedByCount "22" @default.
- W3192947757 countsByYear W31929477572021 @default.
- W3192947757 countsByYear W31929477572022 @default.
- W3192947757 countsByYear W31929477572023 @default.
- W3192947757 crossrefType "journal-article" @default.
- W3192947757 hasAuthorship W3192947757A5024493711 @default.
- W3192947757 hasAuthorship W3192947757A5032593086 @default.
- W3192947757 hasAuthorship W3192947757A5046377738 @default.
- W3192947757 hasAuthorship W3192947757A5073327182 @default.
- W3192947757 hasAuthorship W3192947757A5086311719 @default.
- W3192947757 hasConcept C104577883 @default.
- W3192947757 hasConcept C161790260 @default.
- W3192947757 hasConcept C178790620 @default.
- W3192947757 hasConcept C179104552 @default.
- W3192947757 hasConcept C185592680 @default.
- W3192947757 hasConcept C2776345496 @default.
- W3192947757 hasConcept C2777077568 @default.
- W3192947757 hasConcept C2777207669 @default.
- W3192947757 hasConcept C2781327020 @default.
- W3192947757 hasConcept C516920438 @default.
- W3192947757 hasConcept C518104683 @default.
- W3192947757 hasConceptScore W3192947757C104577883 @default.
- W3192947757 hasConceptScore W3192947757C161790260 @default.
- W3192947757 hasConceptScore W3192947757C178790620 @default.
- W3192947757 hasConceptScore W3192947757C179104552 @default.
- W3192947757 hasConceptScore W3192947757C185592680 @default.
- W3192947757 hasConceptScore W3192947757C2776345496 @default.
- W3192947757 hasConceptScore W3192947757C2777077568 @default.
- W3192947757 hasConceptScore W3192947757C2777207669 @default.
- W3192947757 hasConceptScore W3192947757C2781327020 @default.
- W3192947757 hasConceptScore W3192947757C516920438 @default.
- W3192947757 hasConceptScore W3192947757C518104683 @default.
- W3192947757 hasIssue "12" @default.
- W3192947757 hasLocation W31929477571 @default.
- W3192947757 hasOpenAccess W3192947757 @default.
- W3192947757 hasPrimaryLocation W31929477571 @default.
- W3192947757 hasRelatedWork W2017331403 @default.
- W3192947757 hasRelatedWork W2020896339 @default.
- W3192947757 hasRelatedWork W2046502600 @default.
- W3192947757 hasRelatedWork W2077773780 @default.
- W3192947757 hasRelatedWork W2082404341 @default.
- W3192947757 hasRelatedWork W2106630107 @default.
- W3192947757 hasRelatedWork W2199429437 @default.
- W3192947757 hasRelatedWork W2460200511 @default.
- W3192947757 hasRelatedWork W316514904 @default.
- W3192947757 hasRelatedWork W3217367607 @default.
- W3192947757 hasVolume "42" @default.
- W3192947757 isParatext "false" @default.
- W3192947757 isRetracted "false" @default.
- W3192947757 magId "3192947757" @default.
- W3192947757 workType "article" @default.