Self-regulated Ni cluster formation on the TiO2(110) terrace studied using scanning tunneling microscopy

Fujikawa, Keisuke; Suzuki, Shushi; Koike, Yuichiro; Chun, Wang-Jae; Asakura, Kiyotaka

doi:10.1016/j.susc.2006.03.019


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Self-regulated Ni cluster formation on the TiO2(110) terrace studied using scanning tunneling microscopy

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Title:	Self-regulated Ni cluster formation on the TiO2(110) terrace studied using scanning tunneling microscopy
Authors:	Fujikawa, Keisuke Browse this author
	Suzuki, Shushi Browse this author
	Koike, Yuichiro Browse this author
	Chun, Wang-Jae Browse this author
	Asakura, Kiyotaka Browse this author →KAKEN DB
Keywords:	Scanning tunneling microscopy
	Growth
	Nickel
	Titanium oxide
	Low index single crystal surfaces
	Clusters
Issue Date:	15-May-2006
Publisher:	Elsevier B.V.
Journal Title:	Surface Science
Volume:	600
Issue:	10
Start Page:	117
End Page:	121
Publisher DOI:	10.1016/j.susc.2006.03.019
Abstract:	We have studied the growth mode and morphology of Ni clusters on a TiO2(1 1 0) surface with a wide terrace using scanning tunneling microscopy (STM) at a low coverage (less than 3 atoms nm−2). The Ni clusters are formed on the terrace at the low coverage of 0.2 atoms nm−2. Their average dimensions are constant in three directions up to 1 atoms nm−2. The Ni clusters have an oval shape with average sizes of 1.8 nm (along [0 0 1]) × 1.4 nm (along (in the [1 1 0] directions). Above the coverage of 1.0 atoms nm−2, an increase in the cluster height occurs, retaining an almost constant lateral size. It is proposed that the interaction of the Ni cluster and the support surface regulates the Ni cluster size.
Relation:	http://www.sciencedirect.com/science/journal/00396028
Type:	article (author version)
URI:	http://hdl.handle.net/2115/15418
Appears in Collections:	触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 朝倉清高

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