Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912155563> ?p ?o ?g. }
- W2912155563 endingPage "2853" @default.
- W2912155563 startingPage "2842" @default.
- W2912155563 abstract "Supported catalytically active liquid metal solutions (SCALMS) represent a class of catalytic materials that have only recently been developed, but have already proven to be highly active, e.g., for dehydrogenation reactions. Previous studies attributed the catalytic activity to isolated noble metal atoms at the surface of a liquid and inert Ga matrix. In this study, we apply diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) with CO as a probe molecule to Ga/Al2O3, Pt/Al2O3, and Ga37Pt/Al2O3 catalysts, to investigate in detail the nature of the active Pt species. Comparison of CO adsorption on Pt/Al2O3 and Ga37Pt/Al2O3 shows that isolated Pt atoms are, indeed, present at the surface of the liquid SCALMS. Combining DRIFTS with online gas chromatography (GC), we investigated the Ga/Al2O3, Pt/Al2O3, and Ga37Pt/Al2O3 systems under operando conditions during propane dehydrogenation in CO/propane and in Ar/propane. We find that the Pt/Al2O3 sample is rapidly poisoned by CO adsorption and coke, whereas propane dehydrogenation over Ga37Pt/Al2O3 SCALMS leads to higher conversion with no indication of poisoning effects. We show under operando conditions that isolated Pt atoms are present at the surface of SCALMS during the dehydrogenation reaction. IR spectra and density-functional theory (DFT) suggest that both the Ga matrix and the presence of coadsorbates alter the electronic properties of the surface Pt species." @default.
- W2912155563 created "2019-02-21" @default.
- W2912155563 creator A5001718718 @default.
- W2912155563 creator A5005267120 @default.
- W2912155563 creator A5035522337 @default.
- W2912155563 creator A5036482157 @default.
- W2912155563 creator A5038620219 @default.
- W2912155563 creator A5039726667 @default.
- W2912155563 creator A5052065814 @default.
- W2912155563 creator A5067224843 @default.
- W2912155563 creator A5076106554 @default.
- W2912155563 date "2019-02-15" @default.
- W2912155563 modified "2023-10-18" @default.
- W2912155563 title "Operando DRIFTS and DFT Study of Propane Dehydrogenation over Solid- and Liquid-Supported Ga<sub><i>x</i></sub>Pt<sub><i>y</i></sub> Catalysts" @default.
- W2912155563 cites W1558779097 @default.
- W2912155563 cites W157154567 @default.
- W2912155563 cites W1601844488 @default.
- W2912155563 cites W1971260270 @default.
- W2912155563 cites W1972295548 @default.
- W2912155563 cites W1973707844 @default.
- W2912155563 cites W1974343338 @default.
- W2912155563 cites W1979544533 @default.
- W2912155563 cites W1981368803 @default.
- W2912155563 cites W1983285372 @default.
- W2912155563 cites W1985960755 @default.
- W2912155563 cites W1986528235 @default.
- W2912155563 cites W1987329715 @default.
- W2912155563 cites W1988756226 @default.
- W2912155563 cites W1988762313 @default.
- W2912155563 cites W1996923858 @default.
- W2912155563 cites W2000485628 @default.
- W2912155563 cites W2001059915 @default.
- W2912155563 cites W2005427009 @default.
- W2912155563 cites W2007395042 @default.
- W2912155563 cites W2009207152 @default.
- W2912155563 cites W2009764400 @default.
- W2912155563 cites W2010154632 @default.
- W2912155563 cites W2015865951 @default.
- W2912155563 cites W2017196167 @default.
- W2912155563 cites W2020481794 @default.
- W2912155563 cites W2022085321 @default.
- W2912155563 cites W2027548748 @default.
- W2912155563 cites W2027662469 @default.
- W2912155563 cites W2033211512 @default.
- W2912155563 cites W2034416056 @default.
- W2912155563 cites W2047733622 @default.
- W2912155563 cites W2050048753 @default.
- W2912155563 cites W2050729144 @default.
- W2912155563 cites W2057343762 @default.
- W2912155563 cites W2063413257 @default.
- W2912155563 cites W2064807075 @default.
- W2912155563 cites W2065698794 @default.
- W2912155563 cites W2066775553 @default.
- W2912155563 cites W2080116234 @default.
- W2912155563 cites W2083222334 @default.
- W2912155563 cites W2092157292 @default.
- W2912155563 cites W2094545706 @default.
- W2912155563 cites W2095423998 @default.
- W2912155563 cites W2105998361 @default.
- W2912155563 cites W2105999534 @default.
- W2912155563 cites W2107923188 @default.
- W2912155563 cites W2150687058 @default.
- W2912155563 cites W2266857409 @default.
- W2912155563 cites W2303548058 @default.
- W2912155563 cites W2306425811 @default.
- W2912155563 cites W2318812678 @default.
- W2912155563 cites W2323007472 @default.
- W2912155563 cites W2335334080 @default.
- W2912155563 cites W2353573779 @default.
- W2912155563 cites W2490845179 @default.
- W2912155563 cites W2504373118 @default.
- W2912155563 cites W2538337678 @default.
- W2912155563 cites W2562227471 @default.
- W2912155563 cites W2737768601 @default.
- W2912155563 cites W2755322751 @default.
- W2912155563 cites W2756146708 @default.
- W2912155563 cites W2759094046 @default.
- W2912155563 cites W2783955276 @default.
- W2912155563 cites W2788739539 @default.
- W2912155563 cites W2899847156 @default.
- W2912155563 doi "https://doi.org/10.1021/acscatal.8b04578" @default.
- W2912155563 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7252903" @default.
- W2912155563 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32477699" @default.
- W2912155563 hasPublicationYear "2019" @default.
- W2912155563 type Work @default.
- W2912155563 sameAs 2912155563 @default.
- W2912155563 citedByCount "75" @default.
- W2912155563 countsByYear W29121555632019 @default.
- W2912155563 countsByYear W29121555632020 @default.
- W2912155563 countsByYear W29121555632021 @default.
- W2912155563 countsByYear W29121555632022 @default.
- W2912155563 countsByYear W29121555632023 @default.
- W2912155563 crossrefType "journal-article" @default.
- W2912155563 hasAuthorship W2912155563A5001718718 @default.
- W2912155563 hasAuthorship W2912155563A5005267120 @default.
- W2912155563 hasAuthorship W2912155563A5035522337 @default.
- W2912155563 hasAuthorship W2912155563A5036482157 @default.
- W2912155563 hasAuthorship W2912155563A5038620219 @default.