Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy

Atomically resolved scanning tunnelling microscopy (STM) images have been obtained on ultrathin films of CeO(2)(111) supported on Pt(111). The ultrathin films were grown in two ways, by reactive deposition in an oxygen atmosphere and by postoxidation of Ce/Pt surface alloys. STM results are compared...

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Main Authors: Grinter, D.C., Ithnin, R., Pang, C.L., Thornton, G.
Format: Article
Published: Amer Chemical Soc 2010
Subjects:
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author Grinter, D.C.
Ithnin, R.
Pang, C.L.
Thornton, G.
author_facet Grinter, D.C.
Ithnin, R.
Pang, C.L.
Thornton, G.
author_sort Grinter, D.C.
collection UM
description Atomically resolved scanning tunnelling microscopy (STM) images have been obtained on ultrathin films of CeO(2)(111) supported on Pt(111). The ultrathin films were grown in two ways, by reactive deposition in an oxygen atmosphere and by postoxidation of Ce/Pt surface alloys. STM results are compared with previously reported high-temperature STM and noncontact atomic force microscopy (NC-AFM) images of the native CeO(2)(111) surface. The similarity between these images is striking and allows a number or defects and adsorbates in our ultrathin film to be assigned. Moreover, the similarity in structure between the native oxide and the ceria ultrathin film indicates that is an excellent topographic mimic of the native oxide.
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spelling um.eprints-121732015-01-19T03:45:01Z http://eprints.um.edu.my/12173/ Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy Grinter, D.C. Ithnin, R. Pang, C.L. Thornton, G. QD Chemistry Atomically resolved scanning tunnelling microscopy (STM) images have been obtained on ultrathin films of CeO(2)(111) supported on Pt(111). The ultrathin films were grown in two ways, by reactive deposition in an oxygen atmosphere and by postoxidation of Ce/Pt surface alloys. STM results are compared with previously reported high-temperature STM and noncontact atomic force microscopy (NC-AFM) images of the native CeO(2)(111) surface. The similarity between these images is striking and allows a number or defects and adsorbates in our ultrathin film to be assigned. Moreover, the similarity in structure between the native oxide and the ceria ultrathin film indicates that is an excellent topographic mimic of the native oxide. Amer Chemical Soc 2010 Article PeerReviewed Grinter, D.C. and Ithnin, R. and Pang, C.L. and Thornton, G. (2010) Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy. Journal of Physical Chemistry C, 114 (40). pp. 17036-17041.
spellingShingle QD Chemistry
Grinter, D.C.
Ithnin, R.
Pang, C.L.
Thornton, G.
Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title_full Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title_fullStr Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title_full_unstemmed Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title_short Defect structure of ultrathin ceria films on Pt(111): Atomic views from scanning tunnelling microscopy
title_sort defect structure of ultrathin ceria films on pt 111 atomic views from scanning tunnelling microscopy
topic QD Chemistry
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