Preparation and Interfacial Properties of Phosphonic Acid-Terminated Self-Assembled Monolayers on Gold Surface

被引：32
|
作者：
Chen, Yu [1 ]
Yang, Xiao-Jing [1 ]
Jin, Bo [2 ]
Guo, Li-Rong [1 ]
Zheng, Li-Min [1 ]
Xia, Xing-Hua [2 ]
机构：
[1] Nanjing Univ, State Key Lab Coordinat Chem, Inst Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Key Lab Analyt Chem Life Sci, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 11期
关键词：
QUARTZ-CRYSTAL MICROBALANCE; AU(111) SINGLE-CRYSTAL; CYCLIC VOLTAMMETRY; MOLECULAR FILMS; CARBOXYLIC-ACID; ELECTROCHEMICAL CHARACTERIZATION; ELECTROLESS DEPOSITION; TITRATION; ADSORPTION; STABILITY;
D O I：
10.1021/jp808195j
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The preparation and interfacial properties of self-assembled monolayers (SAMs) of 3-mercaptopropylphosphonic acid [HS-(CH2)(3)-PO3H2, MPPA] adsorbed on Au surfaces have been systematically investigated with the electrochemical method, X-ray photoelectron spectroscopy (XPS), and surface-enhanced internal reflection infrared spectroscopy measurements. An improved rinse method (base-acid rinse protocol) is presented to prepare the MPPA monolayers free of unbound MPPA thiols. Experimental results show that the effect of the degree of dissociation of -PO3H2 groups on the compactness of MPPA-SAMs is nonlinear possibly because of hydrogen bond interaction and the dibasic nature and hydrophilicity of the -PO3H2 groups. The effects of pH and the electric field on the surface charge of MPPA-SAMs are investigated.
引用
收藏
页码：4515 / 4521
页数：7
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