guest ::
| Home > Publications database > Copper Nanoparticles with High Index Facets on Basal and Vicinal ZnO Surfaces |
| Home > Publications database > Copper Nanoparticles with High Index Facets on Basal and Vicinal ZnO Surfaces |
| Journal Article | PUBDB-2021-04506 |
; ; ; ; ; ; ; ; ;
2021
Soc.
Washington, DC
This record in other databases: 
Please use a persistent id in citations: doi:10.1021/acs.jpcc.1c08008 doi:10.3204/PUBDB-2021-04506
Abstract: We investigated the orientation and morphology of Cu nanoparticles grown under ultrahigh-vacuum conditions on ZnO(0001), ZnO(000-1), and ZnO(10-14) single crystal surfaces by scanning tunneling microscopy, high-energy grazing incidence X-ray diffraction, low-energy electron diffraction, and scanning electron microscopy. The (111) oriented Cu NPs on basal ZnO showed only small area fractions of high indexed Cu(225) and Cu(331) facets. Cu NPs grown on ZnO(101̅4) show alignment of Cu [111] with the ZnO [0001] direction, which is at an angle of 24.8° to the ZnO(10-14) surface normal. Because of this tilt, the NPs exhibit a shape with a larger fraction of high indexed facets such as (335), (221), (113), and (55-1). In addition, the direct interaction of subsequent Cu(111) planes to the underlying substrate results in unequal amounts of ABCA and ACBA stacked NPs. Small NPs are found to interact strongly with the vicinal surface, giving rise to a surface corrugation with a multiple of the surface step distance. The high density of low-coordinated Cu surface atoms potentially increases the overall catalytic activity for methanol synthesis and CO2 hydrogenation reactions.
; 
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
PDF (PDFA)