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| 001 | 616571 | ||
| 005 | 20250715171104.0 | ||
| 024 | 7 | _ | |a 10.1021/acsnano.4c08291 |2 doi |
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| 100 | 1 | _ | |a Dolling, Silvan |0 P:(DE-H253)PIP1089108 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Probing active sites on Pd/Pt alloy nanoparticles by CO adsorption |
| 260 | _ | _ | |a Washington, DC |c 2024 |b Soc. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a We studied the adsorption of CO on Pd/Pt nanoparticles (NPs) with varying com-positions using polarization-dependent Fourier transform infrared reflection absorptionspectroscopy (FT-IRRAS) and theoretical calculations (DFT). We prepared PtPd al-loy nanoparticles via physical vapor co-deposition on α-Al$_2$O$_3$(0001) supports. Ourmorphological and structural characterization by scanning electron microscopy andgrazing incidence x-ray diffraction revealed well-defined, epitaxial nanoparticles. Weused CO as a probe molecule to identify the particles’ surface active sites. Polarization-dependent FT-IRRAS enabled us to distinguish CO adsorption on top and side facets ofthe NPs. The role of the Pd/Pt alloy ratio on CO adsorption was investigated by com-paring the experimental CO stretching band frequency for different alloy arrangementsto the results for pure Pd and Pt nanoparticles. Moreover, we studied the influence ofhydrogen adsorption on the NP surface composition. We determined the dependenceof the IR bands on the local atomic arrangement via DFT calculations, revealing thatboth bulk alloy composition and neighboring atoms influence the wavenumber of thebands. |
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| 542 | _ | _ | |i 2024-11-02 |2 Crossref |u https://creativecommons.org/licenses/by/4.0/ |
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| 700 | 1 | _ | |a chen, jiachen |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Schober, Jan-Christian |0 P:(DE-H253)PIP1033529 |b 2 |
| 700 | 1 | _ | |a Creutzburg, Marcus |0 P:(DE-H253)PIP1017841 |b 3 |
| 700 | 1 | _ | |a Jeromin, Arno |0 P:(DE-H253)PIP1084046 |b 4 |
| 700 | 1 | _ | |a Vonk, Vedran |0 P:(DE-H253)PIP1013931 |b 5 |
| 700 | 1 | _ | |a Sharapa, Dmitry I. |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Keller, Thomas F. |0 P:(DE-H253)PIP1019138 |b 7 |
| 700 | 1 | _ | |a Plessow, Philipp N. |0 P:(DE-HGF)0 |b 8 |
| 700 | 1 | _ | |a Noei, Heshmat |0 P:(DE-H253)PIP1018647 |b 9 |e Corresponding author |u desy |
| 700 | 1 | _ | |a Stierle, Andreas |0 P:(DE-H253)PIP1012873 |b 10 |e Corresponding author |
| 773 | 1 | 8 | |a 10.1021/acsnano.4c08291 |b American Chemical Society (ACS) |d 2024-11-02 |n 45 |p 31098-31108 |3 journal-article |2 Crossref |t ACS Nano |v 18 |y 2024 |x 1936-0851 |
| 773 | _ | _ | |a 10.1021/acsnano.4c08291 |g Vol. 18, no. 45, p. 31098 - 31108 |0 PERI:(DE-600)2383064-5 |n 45 |p 31098-31108 |t ACS nano |v 18 |y 2024 |x 1936-0851 |
| 856 | 4 | _ | |u https://pubs.acs.org/doi/10.1021/acsnano.4c08291 |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/616571/files/Supmat_CO_revision_03.pdf |y Restricted |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/616571/files/dolling-et-al-2024-probing-active-sites-on-pd-pt-alloy-nanoparticles-by-co-adsorption.pdf |y OpenAccess |
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