Self-assembly of catecholic ferrocene and electrochemical behavior of its monolayer | |
Ye Q(叶谦); Wang, Hui; Yu B(于波); Zhou F(周峰); Zhou F(周峰); Yu B(于波) | |
刊名 | RSC Advances |
2015 | |
卷号 | 5期号:74页码:60090-60095 |
ISSN号 | 2046-2069 |
通讯作者 | 于波 ; 周峰 |
英文摘要 | Self-assembly of catecholic ferrocene was studied on different surfaces. The self-assembly kinetics of Fc-terminated (Fc-dopamine) self-assembled monolayers (SAMs) and their stability have been studied and characterized using atomic force microscopy (AFM) and cyclic voltammetry (CV), respectively. AFM images have revealed that the self-assembly process of Fc-dopamine molecules on a mica surface follows the systematic increase of surface coverage with assembly time until a closely packed density is reached. The redox behavior of the Fc-dopamine monolayer in NaClO4 electrolyte solutions was characterized using CV, and the stability of the Fc-dopamine SAMs on an Au surface at different pH values and voltages was evaluated. CV results show that the Fc-dopamine SAMs are stable over a scan voltage range of −0.8–1.0 V under pH values lower than 11, but very rapidly destroyed above pH 11. Finally, the wetting behavior of the Fc-dopamine grafted on rough surfaces is tuned by a redox reaction of the Fc group in SAMs, which exhibits superhydrophobicity with a static water contact angle of 161° on anodized alumina surfaces, and hydrophilicity with a CA of 5° after Fc is oxidized. The work provides useful information for understanding the adhesion and deposition mechanisms of catecholic compounds on substrates. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Natural Science Foundation of China (21434009;21204095;21125316);the Western Action Project, Youth Innovation Promotion Association CAS |
语种 | 英语 |
WOS记录号 | WOS:000358230400034 |
公开日期 | 2015-12-24 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/18516] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Zhou F(周峰); Yu B(于波) |
作者单位 | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Ye Q,Wang, Hui,Yu B,et al. Self-assembly of catecholic ferrocene and electrochemical behavior of its monolayer[J]. RSC Advances,2015,5(74):60090-60095. |
APA | Ye Q,Wang, Hui,Yu B,Zhou F,周峰,&于波.(2015).Self-assembly of catecholic ferrocene and electrochemical behavior of its monolayer.RSC Advances,5(74),60090-60095. |
MLA | Ye Q,et al."Self-assembly of catecholic ferrocene and electrochemical behavior of its monolayer".RSC Advances 5.74(2015):60090-60095. |
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