Matches in SemOpenAlex for { <https://semopenalex.org/work/W2092669892> ?p ?o ?g. }
- W2092669892 endingPage "91" @default.
- W2092669892 startingPage "84" @default.
- W2092669892 abstract "Results from previous studies [D.J. Haynes, D.A. Berry, D. Shekhawat, J.J. Spivey, Catal. Today, doi:10.1016/j.cattod.2008.05.014; D.J. Haynes, D.A. Berry, D. Shekhawat, J.J. Spivey, Catal. Today 136 (2008) 206–213] show that Rh metal (2 wt%) substituted into a lanthanum–strontium–zirconate pyrochlore is highly active for the CPOX of surrogate diesel fuel compounds and their mixtures into synthesis gas for fuel cells. However, availability and cost of Rh suggests that it may not be optimal for widespread commercialized applications, and that other, cheaper metals should be investigated. To that end, a potentially lower cost ruthenium substituted pyrochlore catalyst (LSRuZ) was compared to a traditional supported Ru/γ-Al2O3 catalyst in the partial oxidation of a diesel surrogate fuel. Characterization results from XRD showed that the pre- and post-CPOX samples of LSRuZ catalysts consisted of two phases—the main La2Zr2O7 pyrochlore phase as well as a defect SrZrO3 perovskite phase. TPR results demonstrated that Ru atoms substituted into the pyrochlore structure were accessible to the gas-phase and were reducible. The substituted Ru had a higher reduction temperature compared to Ru/γ-Al2O3 (53 °C increase), likely due to interaction with neighboring metal ions in the pyrochlore. XANES spectra on substituted Ru showed the majority of Ru was in the 4+ oxidation state (but not in the RuO2 phase) and was more likely substituted in the pyrochlore than the perovskite phase. Activity testing demonstrated that both catalysts produce equilibrium yields during initial 1 h CPOX of n-tetradecane only. However, after addition of 5 wt% 1-methylnaphthalene and dibenzothiophene to the feed, Ru/γ-Al2O3 deactivated immediately and was unable to recover activity once the contaminants were removed from the feed (irreversible deactivation). Conversely, the yields of LSRuZ dropped slightly, but remained steady over the 2 h when the contaminants were present, and almost recovered to pre-contaminant levels when the contaminants were removed. Carbon formation was directly linked to loss of activity. Post-run temperature programmed oxidation results showed that Ru/γ-Al2O3 had significantly more carbon on/around the active metal compared to the LSRuZ." @default.
- W2092669892 created "2016-06-24" @default.
- W2092669892 creator A5006588170 @default.
- W2092669892 creator A5014163573 @default.
- W2092669892 creator A5018624480 @default.
- W2092669892 creator A5021774788 @default.
- W2092669892 creator A5047068296 @default.
- W2092669892 creator A5067023057 @default.
- W2092669892 date "2010-10-01" @default.
- W2092669892 modified "2023-09-27" @default.
- W2092669892 title "Catalytic partial oxidation of a diesel surrogate fuel using an Ru-substituted pyrochlore" @default.
- W2092669892 cites W183736869 @default.
- W2092669892 cites W1970238773 @default.
- W2092669892 cites W1971336319 @default.
- W2092669892 cites W1975821034 @default.
- W2092669892 cites W1980346174 @default.
- W2092669892 cites W1987177716 @default.
- W2092669892 cites W1987481273 @default.
- W2092669892 cites W1992074428 @default.
- W2092669892 cites W1993438806 @default.
- W2092669892 cites W2009396681 @default.
- W2092669892 cites W2009919432 @default.
- W2092669892 cites W2012500999 @default.
- W2092669892 cites W2014282723 @default.
- W2092669892 cites W2014713257 @default.
- W2092669892 cites W2018222553 @default.
- W2092669892 cites W2029704760 @default.
- W2092669892 cites W2038964261 @default.
- W2092669892 cites W2042474905 @default.
- W2092669892 cites W2047776253 @default.
- W2092669892 cites W2048879773 @default.
- W2092669892 cites W2049504267 @default.
- W2092669892 cites W2054089580 @default.
- W2092669892 cites W2062952990 @default.
- W2092669892 cites W2064197607 @default.
- W2092669892 cites W2065400717 @default.
- W2092669892 cites W2077408686 @default.
- W2092669892 cites W2078213423 @default.
- W2092669892 cites W2082811743 @default.
- W2092669892 cites W2082955185 @default.
- W2092669892 cites W2085254308 @default.
- W2092669892 cites W2089400568 @default.
- W2092669892 cites W2090532748 @default.
- W2092669892 cites W2091627206 @default.
- W2092669892 cites W2094649933 @default.
- W2092669892 cites W2112553915 @default.
- W2092669892 cites W2126839220 @default.
- W2092669892 cites W57667355 @default.
- W2092669892 cites W2027533452 @default.
- W2092669892 doi "https://doi.org/10.1016/j.cattod.2009.03.025" @default.
- W2092669892 hasPublicationYear "2010" @default.
- W2092669892 type Work @default.
- W2092669892 sameAs 2092669892 @default.
- W2092669892 citedByCount "62" @default.
- W2092669892 countsByYear W20926698922012 @default.
- W2092669892 countsByYear W20926698922013 @default.
- W2092669892 countsByYear W20926698922014 @default.
- W2092669892 countsByYear W20926698922015 @default.
- W2092669892 countsByYear W20926698922016 @default.
- W2092669892 countsByYear W20926698922017 @default.
- W2092669892 countsByYear W20926698922018 @default.
- W2092669892 countsByYear W20926698922019 @default.
- W2092669892 countsByYear W20926698922020 @default.
- W2092669892 countsByYear W20926698922021 @default.
- W2092669892 countsByYear W20926698922022 @default.
- W2092669892 countsByYear W20926698922023 @default.
- W2092669892 crossrefType "journal-article" @default.
- W2092669892 hasAuthorship W2092669892A5006588170 @default.
- W2092669892 hasAuthorship W2092669892A5014163573 @default.
- W2092669892 hasAuthorship W2092669892A5018624480 @default.
- W2092669892 hasAuthorship W2092669892A5021774788 @default.
- W2092669892 hasAuthorship W2092669892A5047068296 @default.
- W2092669892 hasAuthorship W2092669892A5067023057 @default.
- W2092669892 hasConcept C155011858 @default.
- W2092669892 hasConcept C161790260 @default.
- W2092669892 hasConcept C178790620 @default.
- W2092669892 hasConcept C179104552 @default.
- W2092669892 hasConcept C185592680 @default.
- W2092669892 hasConcept C2778591166 @default.
- W2092669892 hasConcept C2779303976 @default.
- W2092669892 hasConcept C44280652 @default.
- W2092669892 hasConcept C544153396 @default.
- W2092669892 hasConcept C555196967 @default.
- W2092669892 hasConcept C555894677 @default.
- W2092669892 hasConcept C8010536 @default.
- W2092669892 hasConceptScore W2092669892C155011858 @default.
- W2092669892 hasConceptScore W2092669892C161790260 @default.
- W2092669892 hasConceptScore W2092669892C178790620 @default.
- W2092669892 hasConceptScore W2092669892C179104552 @default.
- W2092669892 hasConceptScore W2092669892C185592680 @default.
- W2092669892 hasConceptScore W2092669892C2778591166 @default.
- W2092669892 hasConceptScore W2092669892C2779303976 @default.
- W2092669892 hasConceptScore W2092669892C44280652 @default.
- W2092669892 hasConceptScore W2092669892C544153396 @default.
- W2092669892 hasConceptScore W2092669892C555196967 @default.
- W2092669892 hasConceptScore W2092669892C555894677 @default.
- W2092669892 hasConceptScore W2092669892C8010536 @default.
- W2092669892 hasIssue "1-2" @default.