Decay of nano-islands on the surface of a Au(111) electrode in contact with sulfuric acid solution

Hirai, Nobumitsu; Yamauchi, Masaki; Tanaka, Toshihiro; Hara, Shigeta

doi:info:doi/10.1016/j.stam.2003.10.021

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論文情報

タイトル	Decay of nano-islands on the surface of a Au(111) electrode in contact with sulfuric acid solution
著者	Hirai, Nobumitsu Hirai, Nobumitsu
	Yamauchi, Masaki Yamauchi, Masaki
	Tanaka, Toshihiro Tanaka, Toshihiro
	Hara, Shigeta Hara, Shigeta
キーワード等	Surface diffusion
	Single crystal surfaces
	Stepped single crystal surfaces
	Gold
	Atomic force microscopy
	Metal–electrolyte interfaces
	Solidliquid interfaces
	Surface structure
	Morphology
	Roughness
	Topography
抄録	The decay of nano-islands on the surface of a Au(111) electrode, in contact with 50 mM sulfuric acid aqueous solution under an applied potential in the range of 0.15–1.2 V, has been investigated using electrochemical atomic force microscopy (EC-AFM). The results are compared with those previously obtained for Au(100). With either orientation, it is found that the area of the top layer of multi-layered islands decreases linearly with time at any applied potential. It was also found that the decay rate, defined as the rate of decrease of the number of atoms in the top-layer of the islands per second, increases with the magnitude of the applied potential. Further, the decay rate of the top layer of the islands on Au(111) is almost the same as that on Au(100).
公開者	IOP Publishing
掲載誌名	Science and Technology of Advanced Materials
巻	5
号	1-2
開始ページ	115
終了ページ	118
刊行年月	2004
ISSN	14686996
NCID	AA11561821
DOI	info:doi/10.1016/j.stam.2003.10.021
URL	http://hdl.handle.net/11094/25981
権利情報	http://creativecommons.org/licenses/by-nc-sa/3.0/
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Science and Technology of Advanced Materials.5(1-2) P.115-P.118
DC.title	Decay of nano-islands on the surface of a Au(111) electrode in contact with sulfuric acid solution
DC.creator	Hirai, Nobumitsu
	Yamauchi, Masaki
	Tanaka, Toshihiro
	Hara, Shigeta
DC.publisher	IOP Publishing
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2004
DC.identifier	info:doi/10.1016/j.stam.2003.10.021
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/25981
DC.subject	Surface diffusion
	Single crystal surfaces
	Stepped single crystal surfaces
	Gold
	Atomic force microscopy
	Metal–electrolyte interfaces
	Solidliquid interfaces
	Surface structure
	Morphology
	Roughness
	Topography
DCTERMS.abstract	The decay of nano-islands on the surface of a Au(111) electrode, in contact with 50 mM sulfuric acid aqueous solution under an applied potential in the range of 0.15–1.2 V, has been investigated using electrochemical atomic force microscopy (EC-AFM). The results are compared with those previously obtained for Au(100). With either orientation, it is found that the area of the top layer of multi-layered islands decreases linearly with time at any applied potential. It was also found that the decay rate, defined as the rate of decrease of the number of atoms in the top-layer of the islands per second, increases with the magnitude of the applied potential. Further, the decay rate of the top layer of the islands on Au(111) is almost the same as that on Au(100).
DC.rights	http://creativecommons.org/licenses/by-nc-sa/3.0/
citation_title	Decay of nano-islands on the surface of a Au(111) electrode in contact with sulfuric acid solution
citation_author	Hirai, Nobumitsu
	Yamauchi, Masaki
	Tanaka, Toshihiro
	Hara, Shigeta
citation_publisher	IOP Publishing
citation_language	英語
citation_date	2004
citation_journal_title	Science and Technology of Advanced Materials
citation_volume	5
citation_issue	1-2
citation_firstpage	115
citation_lastpage	118
citation_issn	14686996
citation_doi	info:doi/10.1016/j.stam.2003.10.021
citation_public_url	http://hdl.handle.net/11094/25981
citation_keywords	Surface diffusion
	Single crystal surfaces
	Stepped single crystal surfaces
	Gold
	Atomic force microscopy
	Metal–electrolyte interfaces
	Solidliquid interfaces
	Surface structure
	Morphology
	Roughness
	Topography

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