FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022352502> ?p ?o ?g. }

• W2022352502 endingPage "35" @default.
• W2022352502 startingPage "29" @default.
• W2022352502 abstract "The oxidation of propylene over a Pd(5 5 1) single crystal surface has been studied by X-ray photoelectron spectroscopy (XPS) and temperature-programmed reaction spectroscopy during both heating and cooling in various oxygen/propylene mixtures. In all the experiments, the partial pressure of propylene was approximately 1 × 10−7 mbar and the partial pressure of oxygen was varied to achieve molar oxygen/propylene ratios of 1, 3, 10, and 100. Under all these conditions, we observed a temperature hysteresis: temperature dependences of the catalyst activity and product distribution were different during heating and cooling. It was shown that the temperature hysteresis was due to concurrent accumulation of carbon and oxygen atoms on the palladium surface. At low temperatures, a high concentration of carbonaceous deposits detected by XPS resulted in a low catalytic activity due to blocking of the palladium surface. Increasing temperature led to full dehydrogenation of the carbonaceous species and dissolution of carbon atoms into subsurface palladium layers. As a result, even under oxygen-rich conditions, the formation of a PdCx phase was detected by XPS at 373 K. This process had no influence on the selectivity in the oxidation of propylene at least under UHV conditions. A shift of selectivity toward CO2 was found to result from an increase in the oxygen concentration on the palladium surface. The state with a low catalytic activity in the oxidation of propylene was associated with palladium in the metallic state covered by carbon deposits. The high-active state of palladium was associated with palladium in the metallic state with a high concentration of chemisorbed oxygen and a moderate concentration of a surface oxide. Bulk PdO was not detected by XPS under all conditions used." @default.
• W2022352502 created "2016-06-24" @default.
• W2022352502 creator A5007022873 @default.
• W2022352502 creator A5035190834 @default.
• W2022352502 creator A5048537351 @default.
• W2022352502 creator A5060459445 @default.
• W2022352502 creator A5069719953 @default.
• W2022352502 creator A5077492650 @default.
• W2022352502 creator A5080417513 @default.
• W2022352502 date "2015-04-01" @default.
• W2022352502 modified "2023-09-24" @default.
• W2022352502 title "Oxidation of propylene over Pd(5 5 1): Temperature hysteresis induced by carbon deposition and oxygen adsorption" @default.
• W2022352502 cites W1526622778 @default.
• W2022352502 cites W1966187509 @default.
• W2022352502 cites W1968286625 @default.
• W2022352502 cites W1968550082 @default.
• W2022352502 cites W1970993326 @default.
• W2022352502 cites W1972804518 @default.
• W2022352502 cites W1973914062 @default.
• W2022352502 cites W1974479534 @default.
• W2022352502 cites W1975114417 @default.
• W2022352502 cites W1976975948 @default.
• W2022352502 cites W1980929676 @default.
• W2022352502 cites W1990891689 @default.
• W2022352502 cites W1993628166 @default.
• W2022352502 cites W1994576847 @default.
• W2022352502 cites W1994894222 @default.
• W2022352502 cites W1996581592 @default.
• W2022352502 cites W2006058174 @default.
• W2022352502 cites W2017062950 @default.
• W2022352502 cites W2019439078 @default.
• W2022352502 cites W2025747544 @default.
• W2022352502 cites W2032029489 @default.
• W2022352502 cites W2039691265 @default.
• W2022352502 cites W2050534812 @default.
• W2022352502 cites W2056611491 @default.
• W2022352502 cites W2061210387 @default.
• W2022352502 cites W2061892615 @default.
• W2022352502 cites W2062064985 @default.
• W2022352502 cites W2062109452 @default.
• W2022352502 cites W2071371168 @default.
• W2022352502 cites W2071885231 @default.
• W2022352502 cites W2074947403 @default.
• W2022352502 cites W2082214949 @default.
• W2022352502 cites W2088077975 @default.
• W2022352502 cites W2100923272 @default.
• W2022352502 cites W2101604632 @default.
• W2022352502 cites W2131313136 @default.
• W2022352502 cites W2144118908 @default.
• W2022352502 cites W2150774791 @default.
• W2022352502 cites W2156769462 @default.
• W2022352502 cites W2332827084 @default.
• W2022352502 cites W49509540 @default.
• W2022352502 doi "https://doi.org/10.1016/j.cattod.2014.08.023" @default.
• W2022352502 hasPublicationYear "2015" @default.
• W2022352502 type Work @default.
• W2022352502 sameAs 2022352502 @default.
• W2022352502 citedByCount "33" @default.
• W2022352502 countsByYear W20223525022015 @default.
• W2022352502 countsByYear W20223525022016 @default.
• W2022352502 countsByYear W20223525022017 @default.
• W2022352502 countsByYear W20223525022018 @default.
• W2022352502 countsByYear W20223525022019 @default.
• W2022352502 countsByYear W20223525022020 @default.
• W2022352502 countsByYear W20223525022021 @default.
• W2022352502 countsByYear W20223525022022 @default.
• W2022352502 countsByYear W20223525022023 @default.
• W2022352502 crossrefType "journal-article" @default.
• W2022352502 hasAuthorship W2022352502A5007022873 @default.
• W2022352502 hasAuthorship W2022352502A5035190834 @default.
• W2022352502 hasAuthorship W2022352502A5048537351 @default.
• W2022352502 hasAuthorship W2022352502A5060459445 @default.
• W2022352502 hasAuthorship W2022352502A5069719953 @default.
• W2022352502 hasAuthorship W2022352502A5077492650 @default.
• W2022352502 hasAuthorship W2022352502A5080417513 @default.
• W2022352502 hasBestOaLocation W20223525022 @default.
• W2022352502 hasConcept C104779481 @default.
• W2022352502 hasConcept C127413603 @default.
• W2022352502 hasConcept C140205800 @default.
• W2022352502 hasConcept C147789679 @default.
• W2022352502 hasConcept C150394285 @default.
• W2022352502 hasConcept C159985019 @default.
• W2022352502 hasConcept C161790260 @default.
• W2022352502 hasConcept C175708663 @default.
• W2022352502 hasConcept C178790620 @default.
• W2022352502 hasConcept C179104552 @default.
• W2022352502 hasConcept C185592680 @default.
• W2022352502 hasConcept C192562407 @default.
• W2022352502 hasConcept C2777954637 @default.
• W2022352502 hasConcept C2778591166 @default.
• W2022352502 hasConcept C42360764 @default.
• W2022352502 hasConcept C502130503 @default.
• W2022352502 hasConcept C512735826 @default.
• W2022352502 hasConcept C540031477 @default.
• W2022352502 hasConcept C68463220 @default.
• W2022352502 hasConcept C88380143 @default.
• W2022352502 hasConceptScore W2022352502C104779481 @default.
• W2022352502 hasConceptScore W2022352502C127413603 @default.

• next