High Speed Atomic Force Microscope Observation of Polyethylene Glycol Adsorption on Au(100)

Esaki, Rei; Yasuda, Yohei; Kotani, Norito et al.

Journal of the electrochemical society, 2022, 169(8), 82512

Permalink : https://hdl.handle.net/2115/86729

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https://doi.org/10.1149/1945-7111/ac876c     2

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アクセス権
metadata only access
URI
https://hdl.handle.net/2115/86729
タイトル
High Speed Atomic Force Microscope Observation of Polyethylene Glycol Adsorption on Au(100)
著者
Esaki, Rei ; Yasuda, Yohei ; Kotani, Norito ; Matsushima, Hisayoshi ; Ueda, Mikito
著者名
Esaki, Rei
著者名
Yasuda, Yohei
著者名
Kotani, Norito
e-Rad_Researcher
30578026
著者名
Matsushima, Hisayoshi
e-Rad_Researcher
00292053
著者名
Ueda, Mikito
言語
英語
発行日
2022-08-18
出版者
The Electrochemical Society (ECS)
収録物名
Journal of the electrochemical society
巻(号)
169(8)
ページ
82512
抄録
Polyethylene glycol (PEG) plays an important role as an inhibitor of the electrodeposition. In this study, we investigated the potential dependence of PEG (molecular weight: 3000) adsorption and desorption processes on the gold single crystal substrate. High speed atomic force microscope (HS-AFM) was applied for observing the dynamic behaviors of the nucleation and the growth of PEG adsorption. The in situ observation was conducted at the several potentials where the cyclic voltammogram measurement showed the broad peak of the reduction current. As the applied potential became more cathodic, the adsorption morphology changed from film-like, through the sphere, to the large irregular cluster. When the potential was switched to anodic potential, HS-AFM could show the dissolution process of PEG. Finally we demonstrated the effect of the tip force by modifying the feed-back circuit of AFM.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0013-4651
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.1149/1945-7111/ac876c