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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