Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111)
Abstract We bombarded $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) and $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) with a 2.3 eV hyperthermal oxygen molecular beam (HOMB) source, and characterized the corresponding (oxide) surfaces with synchrotron-radiation X-ray photoemiss...
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Nature Portfolio
2021
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oai:doaj.org-article:3b775e6633414a828fb22c5cae28afb12021-12-02T14:21:42ZInterface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111)10.1038/s41598-021-82180-w2045-2322https://doaj.org/article/3b775e6633414a828fb22c5cae28afb12021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82180-whttps://doaj.org/toc/2045-2322Abstract We bombarded $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) and $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) with a 2.3 eV hyperthermal oxygen molecular beam (HOMB) source, and characterized the corresponding (oxide) surfaces with synchrotron-radiation X-ray photoemission spectroscopy (SR-XPS). At $$300\,\text{K}$$ 300 K , CuO forms on both $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) and $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) . When we increase the surface temperature to $$500\,\text{K}$$ 500 K , $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O also forms on $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) , but not on $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) . For comparison, $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O forms even at $$300\,\text{K}$$ 300 K on Cu(111). On $$\mbox{$\text{Cu}_{3}\text{Au}(111)$}$$ Cu 3 Au ( 111 ) , $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O forms only after $$500\,\text{K}$$ 500 K , and no oxides can be found at $$300\,\text{K}$$ 300 K . We ascribe this difference in Cu oxide formation to the mobility of the interfacial species (Cu/Pd/Pt) and charge transfer between the surface Cu oxides and subsurface species (Cu/Pd/Pt).Yasutaka TsudaJessiel Siaron GueribaTakamasa MakinoWilson Agerico DiñoAkitaka YoshigoeMichio OkadaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021) |
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Medicine R Science Q Yasutaka Tsuda Jessiel Siaron Gueriba Takamasa Makino Wilson Agerico Diño Akitaka Yoshigoe Michio Okada Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| description |
Abstract We bombarded $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) and $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) with a 2.3 eV hyperthermal oxygen molecular beam (HOMB) source, and characterized the corresponding (oxide) surfaces with synchrotron-radiation X-ray photoemission spectroscopy (SR-XPS). At $$300\,\text{K}$$ 300 K , CuO forms on both $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) and $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) . When we increase the surface temperature to $$500\,\text{K}$$ 500 K , $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O also forms on $$\mbox{$\text{Cu}_{3}\text{Pd}(111)$}$$ Cu 3 Pd ( 111 ) , but not on $$\mbox{$\text{Cu}_{3}\text{Pt}(111)$}$$ Cu 3 Pt ( 111 ) . For comparison, $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O forms even at $$300\,\text{K}$$ 300 K on Cu(111). On $$\mbox{$\text{Cu}_{3}\text{Au}(111)$}$$ Cu 3 Au ( 111 ) , $$\mbox{$\text{Cu}_{2}\text{O}$}$$ Cu 2 O forms only after $$500\,\text{K}$$ 500 K , and no oxides can be found at $$300\,\text{K}$$ 300 K . We ascribe this difference in Cu oxide formation to the mobility of the interfacial species (Cu/Pd/Pt) and charge transfer between the surface Cu oxides and subsurface species (Cu/Pd/Pt). |
| format |
article |
| author |
Yasutaka Tsuda Jessiel Siaron Gueriba Takamasa Makino Wilson Agerico Diño Akitaka Yoshigoe Michio Okada |
| author_facet |
Yasutaka Tsuda Jessiel Siaron Gueriba Takamasa Makino Wilson Agerico Diño Akitaka Yoshigoe Michio Okada |
| author_sort |
Yasutaka Tsuda |
| title |
Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| title_short |
Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| title_full |
Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| title_fullStr |
Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| title_full_unstemmed |
Interface atom mobility and charge transfer effects on CuO and Cu2O formation on Cu3Pd(111) and Cu3Pt(111) |
| title_sort |
interface atom mobility and charge transfer effects on cuo and cu2o formation on cu3pd(111) and cu3pt(111) |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/3b775e6633414a828fb22c5cae28afb1 |
| work_keys_str_mv |
AT yasutakatsuda interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 AT jessielsiarongueriba interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 AT takamasamakino interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 AT wilsonagericodino interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 AT akitakayoshigoe interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 AT michiookada interfaceatommobilityandchargetransfereffectsoncuoandcu2oformationoncu3pd111andcu3pt111 |
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1718391480270192640 |