Matches in SemOpenAlex for { <https://semopenalex.org/work/W2026451988> ?p ?o ?g. }
- W2026451988 endingPage "397" @default.
- W2026451988 startingPage "373" @default.
- W2026451988 abstract "The oxidation state of alumina-supported Pt following treatment with O2 and the transient reaction between CO and preadsorbed oxygen are reported. Pt/Al2O3 (65%-dispersed) was exposed to O2 (1.23 kPa) at 523 K. The maximum oxygen uptake was obtained within 120 s. Following flushing with inert, a flow of CO (1.23 kPa) was switched over the sample. During the transient reaction, the production of gaseous CO2 was monitored with a mass spectrometer and the absorption of infrared radiation by adsorbed CO was recorded at a fixed wavenumber. The experiments were repeated to obtain the infrared data over a range of wavenumbers. From the complete set of infrared data, spectra were obtained which show how the population of five different CO adsorption states varied with time. The total amount of CO2 produced during the transient reaction corresponds to removal of two O atoms per Pt atom in the sample and, thus, indicates complete oxidation of the Pt. Two peaks in the CO2 production rate are observed: an initial sharp peak lasting for 2.5 s in which about 20% of the preadsorbed oxygen is removed followed by a broad peak lasting for about 120 s in which all of the remaining oxygen is removed. With 30%-dispersed Pt/Al2O3 the relative heights and shapes of the two peaks are slightly different but the same initial O atom to total Pt atom ration is indicated. The first CO2 peak is ascribed to removal of oxygen atoms in the surfaces of supported Pt oxide particles. The second CO2 peak is ascribed to removal of oxygen atoms bound within supported Pt oxide particles. Similar transient reduction behavior was also observed with Rh/Al2O3." @default.
- W2026451988 created "2016-06-24" @default.
- W2026451988 creator A5000002457 @default.
- W2026451988 creator A5053391829 @default.
- W2026451988 date "1984-11-01" @default.
- W2026451988 modified "2023-10-06" @default.
- W2026451988 title "Transient oxidation and reduction of alumina-supported platinum" @default.
- W2026451988 cites W1210645339 @default.
- W2026451988 cites W1539004797 @default.
- W2026451988 cites W1966299050 @default.
- W2026451988 cites W1972428982 @default.
- W2026451988 cites W1984602767 @default.
- W2026451988 cites W1984923402 @default.
- W2026451988 cites W1985002804 @default.
- W2026451988 cites W1992030518 @default.
- W2026451988 cites W1994017328 @default.
- W2026451988 cites W1994179693 @default.
- W2026451988 cites W1995739428 @default.
- W2026451988 cites W2007124047 @default.
- W2026451988 cites W2009965707 @default.
- W2026451988 cites W2013839211 @default.
- W2026451988 cites W2016670303 @default.
- W2026451988 cites W2018097956 @default.
- W2026451988 cites W2020264043 @default.
- W2026451988 cites W2031528049 @default.
- W2026451988 cites W2037282573 @default.
- W2026451988 cites W2038984123 @default.
- W2026451988 cites W2044131316 @default.
- W2026451988 cites W2044509455 @default.
- W2026451988 cites W2050169466 @default.
- W2026451988 cites W2050815245 @default.
- W2026451988 cites W2054242238 @default.
- W2026451988 cites W2067996745 @default.
- W2026451988 cites W2073167381 @default.
- W2026451988 cites W2073303126 @default.
- W2026451988 cites W2073306008 @default.
- W2026451988 cites W2078213369 @default.
- W2026451988 cites W2079976297 @default.
- W2026451988 cites W2080621512 @default.
- W2026451988 cites W2081658507 @default.
- W2026451988 cites W2092096380 @default.
- W2026451988 cites W2116868503 @default.
- W2026451988 cites W2124587663 @default.
- W2026451988 cites W2161755297 @default.
- W2026451988 cites W2317709903 @default.
- W2026451988 cites W2331540854 @default.
- W2026451988 cites W4253367286 @default.
- W2026451988 doi "https://doi.org/10.1016/0378-5963(84)90074-6" @default.
- W2026451988 hasPublicationYear "1984" @default.
- W2026451988 type Work @default.
- W2026451988 sameAs 2026451988 @default.
- W2026451988 citedByCount "24" @default.
- W2026451988 countsByYear W20264519882012 @default.
- W2026451988 countsByYear W20264519882014 @default.
- W2026451988 countsByYear W20264519882015 @default.
- W2026451988 countsByYear W20264519882016 @default.
- W2026451988 countsByYear W20264519882019 @default.
- W2026451988 countsByYear W20264519882023 @default.
- W2026451988 crossrefType "journal-article" @default.
- W2026451988 hasAuthorship W2026451988A5000002457 @default.
- W2026451988 hasAuthorship W2026451988A5053391829 @default.
- W2026451988 hasConcept C113196181 @default.
- W2026451988 hasConcept C120665830 @default.
- W2026451988 hasConcept C121332964 @default.
- W2026451988 hasConcept C147789679 @default.
- W2026451988 hasConcept C150394285 @default.
- W2026451988 hasConcept C153642686 @default.
- W2026451988 hasConcept C158355884 @default.
- W2026451988 hasConcept C161790260 @default.
- W2026451988 hasConcept C178790620 @default.
- W2026451988 hasConcept C179104552 @default.
- W2026451988 hasConcept C185592680 @default.
- W2026451988 hasConcept C2778591166 @default.
- W2026451988 hasConcept C2779851234 @default.
- W2026451988 hasConcept C43617362 @default.
- W2026451988 hasConcept C518104683 @default.
- W2026451988 hasConcept C540031477 @default.
- W2026451988 hasConcept C544153396 @default.
- W2026451988 hasConcept C55904794 @default.
- W2026451988 hasConceptScore W2026451988C113196181 @default.
- W2026451988 hasConceptScore W2026451988C120665830 @default.
- W2026451988 hasConceptScore W2026451988C121332964 @default.
- W2026451988 hasConceptScore W2026451988C147789679 @default.
- W2026451988 hasConceptScore W2026451988C150394285 @default.
- W2026451988 hasConceptScore W2026451988C153642686 @default.
- W2026451988 hasConceptScore W2026451988C158355884 @default.
- W2026451988 hasConceptScore W2026451988C161790260 @default.
- W2026451988 hasConceptScore W2026451988C178790620 @default.
- W2026451988 hasConceptScore W2026451988C179104552 @default.
- W2026451988 hasConceptScore W2026451988C185592680 @default.
- W2026451988 hasConceptScore W2026451988C2778591166 @default.
- W2026451988 hasConceptScore W2026451988C2779851234 @default.
- W2026451988 hasConceptScore W2026451988C43617362 @default.
- W2026451988 hasConceptScore W2026451988C518104683 @default.
- W2026451988 hasConceptScore W2026451988C540031477 @default.
- W2026451988 hasConceptScore W2026451988C544153396 @default.
- W2026451988 hasConceptScore W2026451988C55904794 @default.
- W2026451988 hasIssue "1-4" @default.