Matches in SemOpenAlex for { <https://semopenalex.org/work/W3082007296> ?p ?o ?g. }
- W3082007296 endingPage "110594" @default.
- W3082007296 startingPage "110594" @default.
- W3082007296 abstract "Different phosphines (PR3, R = phenyl, 4-methoxyphenyl) are demonstrated to be useful probe molecules for the spatial location and quantification of noble metal (NM) atoms within mesoporous and microporous support materials, such as silica A200, mesoporous SBA-15, and different zeolites Y. For this purpose, the high NMR sensitivity of 31P nuclei (spin I = ½, abundance of 100%) and the characteristic chemical shifts of phosphine complexes formed with noble metals were utilized. A straightforward method of physically mixing the reduced noble metal-containing catalysts with the solid phosphine powders and heating under well-defined conditions is shown. Complexation of triphenylphosphine (PPh3) and tris(4-methoxyphenyl)phosphine, P(PhOMe)3, with Pt, Rh, Pd, and Ru on open surfaces and in mesopores leads to characteristic 31P MAS NMR signals at δ = 33–41 ppm. Because of the different molecular diameters of PPh3 (0.72 nm) and P(PhOMe)3 (0.91 nm), adsorption of these two probe molecules allows to distinguish between noble metal atoms located at the outer surface of zeolite particles and those in secondary mesopores and in supercages of zeolites Y. For the first time this method enables the characterization of noble metals directly using probe molecules and 31P MAS NMR spectroscopy." @default.
- W3082007296 created "2020-09-08" @default.
- W3082007296 creator A5006130730 @default.
- W3082007296 creator A5016791337 @default.
- W3082007296 creator A5028431206 @default.
- W3082007296 creator A5046560786 @default.
- W3082007296 creator A5049111275 @default.
- W3082007296 creator A5075549882 @default.
- W3082007296 creator A5078062167 @default.
- W3082007296 creator A5088447677 @default.
- W3082007296 creator A5088868749 @default.
- W3082007296 date "2021-01-01" @default.
- W3082007296 modified "2023-09-23" @default.
- W3082007296 title "Noble metal location in porous supports determined by reaction with phosphines" @default.
- W3082007296 cites W1970793506 @default.
- W3082007296 cites W1972457473 @default.
- W3082007296 cites W1981020788 @default.
- W3082007296 cites W1994094075 @default.
- W3082007296 cites W1995041236 @default.
- W3082007296 cites W2014199120 @default.
- W3082007296 cites W2023883460 @default.
- W3082007296 cites W2025901426 @default.
- W3082007296 cites W2037692687 @default.
- W3082007296 cites W2073008020 @default.
- W3082007296 cites W2083607040 @default.
- W3082007296 cites W2084251748 @default.
- W3082007296 cites W2092979689 @default.
- W3082007296 cites W2100207648 @default.
- W3082007296 cites W2124903261 @default.
- W3082007296 cites W2255271470 @default.
- W3082007296 cites W2514954849 @default.
- W3082007296 cites W2606321071 @default.
- W3082007296 cites W2978046953 @default.
- W3082007296 doi "https://doi.org/10.1016/j.micromeso.2020.110594" @default.
- W3082007296 hasPublicationYear "2021" @default.
- W3082007296 type Work @default.
- W3082007296 sameAs 3082007296 @default.
- W3082007296 citedByCount "4" @default.
- W3082007296 countsByYear W30820072962020 @default.
- W3082007296 countsByYear W30820072962021 @default.
- W3082007296 countsByYear W30820072962022 @default.
- W3082007296 countsByYear W30820072962023 @default.
- W3082007296 crossrefType "journal-article" @default.
- W3082007296 hasAuthorship W3082007296A5006130730 @default.
- W3082007296 hasAuthorship W3082007296A5016791337 @default.
- W3082007296 hasAuthorship W3082007296A5028431206 @default.
- W3082007296 hasAuthorship W3082007296A5046560786 @default.
- W3082007296 hasAuthorship W3082007296A5049111275 @default.
- W3082007296 hasAuthorship W3082007296A5075549882 @default.
- W3082007296 hasAuthorship W3082007296A5078062167 @default.
- W3082007296 hasAuthorship W3082007296A5088447677 @default.
- W3082007296 hasAuthorship W3082007296A5088868749 @default.
- W3082007296 hasConcept C105281773 @default.
- W3082007296 hasConcept C121530826 @default.
- W3082007296 hasConcept C147789679 @default.
- W3082007296 hasConcept C150394285 @default.
- W3082007296 hasConcept C161790260 @default.
- W3082007296 hasConcept C178790620 @default.
- W3082007296 hasConcept C179104552 @default.
- W3082007296 hasConcept C185592680 @default.
- W3082007296 hasConcept C192562407 @default.
- W3082007296 hasConcept C2775871042 @default.
- W3082007296 hasConcept C2777247709 @default.
- W3082007296 hasConcept C2777716191 @default.
- W3082007296 hasConcept C2778077586 @default.
- W3082007296 hasConcept C32909587 @default.
- W3082007296 hasConcept C521398313 @default.
- W3082007296 hasConcept C544153396 @default.
- W3082007296 hasConcept C66974803 @default.
- W3082007296 hasConcept C82776694 @default.
- W3082007296 hasConcept C86381522 @default.
- W3082007296 hasConceptScore W3082007296C105281773 @default.
- W3082007296 hasConceptScore W3082007296C121530826 @default.
- W3082007296 hasConceptScore W3082007296C147789679 @default.
- W3082007296 hasConceptScore W3082007296C150394285 @default.
- W3082007296 hasConceptScore W3082007296C161790260 @default.
- W3082007296 hasConceptScore W3082007296C178790620 @default.
- W3082007296 hasConceptScore W3082007296C179104552 @default.
- W3082007296 hasConceptScore W3082007296C185592680 @default.
- W3082007296 hasConceptScore W3082007296C192562407 @default.
- W3082007296 hasConceptScore W3082007296C2775871042 @default.
- W3082007296 hasConceptScore W3082007296C2777247709 @default.
- W3082007296 hasConceptScore W3082007296C2777716191 @default.
- W3082007296 hasConceptScore W3082007296C2778077586 @default.
- W3082007296 hasConceptScore W3082007296C32909587 @default.
- W3082007296 hasConceptScore W3082007296C521398313 @default.
- W3082007296 hasConceptScore W3082007296C544153396 @default.
- W3082007296 hasConceptScore W3082007296C66974803 @default.
- W3082007296 hasConceptScore W3082007296C82776694 @default.
- W3082007296 hasConceptScore W3082007296C86381522 @default.
- W3082007296 hasLocation W30820072961 @default.
- W3082007296 hasOpenAccess W3082007296 @default.
- W3082007296 hasPrimaryLocation W30820072961 @default.
- W3082007296 hasRelatedWork W1970793506 @default.
- W3082007296 hasRelatedWork W1978476800 @default.
- W3082007296 hasRelatedWork W2020539196 @default.
- W3082007296 hasRelatedWork W2037379794 @default.
- W3082007296 hasRelatedWork W2041858867 @default.