Výsledky vyhledávání - "Patrick W. Goguen"

Solvent-assisted proton transfer in catalysis by zeolite solid acids

Autor: Teng Xu, James F. Haw, Patrick W. Goguen, John B. Nicholas

Publikováno v: Nature. 389:832-835

Intermolecular proton transfer in the gas phase is usually strongly disfavoured because the charged products are highly unstable. It is promoted in aqueous solution, however, because the high dielectric constant (e = 78.3) of water allows efficient s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a6c575cb79d5f7a9ebb8f2f6f3fe5eba
https://doi.org/10.1038/39843

Zobrazit plný text záznamu

Chloromethoxyl and dichloromethoxyl formation on zeolite ZnY, an in situ NMR and flow reactor study

Autor: Thomas R. Krawietz, Patrick W. Goguen, James F. Haw

Publikováno v: Catalysis Letters. 42:41-45

In situ13C and27Al MAS NMR and flow reactor studies were used to study the decomposition of dichloromethane and chloroform on zeolite ZnY. The initially formed products were framework-bound chloromethoxyl (from dichloromethane) and dichloromethoxyl (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03c06d146fcd562207c97df31102ecd8
https://doi.org/10.1007/bf00814465

Zobrazit plný text záznamu

Methyl Halide Reactions on Multifunctional Metal-Exchanged Zeolite Catalysts

Autor: Patrick W. Goguen, David K. Murray, Thomas R. Krawietz, Timothy Howard, James F. Haw

Publikováno v: Journal of the American Chemical Society. 116:6354-6360

Proximal sites consisting of a divalent metal cation as a hydroxide and/or oxide and an anion site in the zeolite framework are very active for the conversion of methyl halides to ethylene. These studies further support the effects of zeolite framewo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89dd3917cbf5eb128709d3e3492efe19
https://doi.org/10.1021/ja00093a040

Zobrazit plný text záznamu

'In-situ'-NMR-Untersuchungen von Katalysator- und Produktproben heterogen-katalytischer Reaktionen, die unter realen Reaktionsbedingungen erhalten wurden

Autor: Patrick W. Goguen, James F. Haw, Timothy W. Skloss, Weiguo Song, Teng Xu, Zhike Wang

Publikováno v: Angewandte Chemie. 110:993-995

In nur 170 Millisekunden kann in dem rechts gezeigten Katalysereaktor das Katalysatorbett um 150 K abgekuhlt werden. Dadurch ist die NMR-spektroskopische Untersuchung von Produkten moglich, die nach sehr kurzen Kontaktzeiten und unter realen Katalyse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef309303396b1644c0cc62fbc357409d
https://doi.org/10.1002/(sici)1521-3757(19980403)110:7<993::aid-ange993>3.0.co

Zobrazit plný text záznamu

Anin SituNMR Probe with Reagent Flow and Magic Angle Spinning

Autor: James F. Haw, Patrick W. Goguen

Publikováno v: Journal of Catalysis. 161:870-872

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c30b874d3640d767945423f039b0ecb2
https://doi.org/10.1006/jcat.1996.0250

Zobrazit plný text záznamu

In Situ NMR Investigations of Heterogeneous Catalysis with Samples Prepared under Standard Reaction Conditions

Autor: James F, Haw, Patrick W, Goguen, Teng, Xu, Timothy W, Skloss, Weiguo, Song, Zhike, Wang

Publikováno v: Angewandte Chemie (International ed. in English). 37(7)

Only 170 milliseconds are required to cool the catalyst bed by 150 K in the catalytic reactor shown on the right. Thus, NMR spectroscopic investigations can be carried out on products that are formed after very short contact times and under real cata

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4a3769cfac5e0f62879dded89113421f
https://pubmed.ncbi.nlm.nih.gov/29711496

Zobrazit plný text záznamu