Study of the Formation Process of an Azobenzene Self-assembled Monolayer on Gold Surface

Huibo Shao; Huazhong Yu; Guangjun Cheng; Haoli Zhang; Zhongfan Liu

Study of the Formation Process of an Azobenzene Self-assembled Monolayer on Gold Surface

Huibo Shao
, Huazhong Yu
, Guangjun Cheng
, Haoli Zhang
, Zhongfan Liu^*

^*Corresponding author for this work

Peking University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The formation kinetics of the self-assembled monolayer (SAM) of an azobenzenealkanethiol, denoted as AzoC2SH on gold surface was studied using electrochemical techniques, and the monolayers prepared at different assembly times and concentration were also investigated. A two-step adsorption kinetics has been confirmed: the fast adsorption process and the following long-term reorganization. The equilibrium constant (K) for the adsorptioon and the interaction factor between adsorbate-adsorbate molecules (δ) were evaluated based on the Frumkin isotherm and determined to be (3.17±0.13)×10⁶ mol·L^-1 and -0.34±0.04, respectively. The Gibbs free energy (ΔG) of SAM was determined to be -(37.07±0.13) kJ·mol^-1.

Original language	English
Pages (from-to)	850-851
Number of pages	2
Journal	Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica
Volume	14
Issue number	9
Publication status	Published - 1998
Externally published	Yes

Keywords

Azobenzene
Frumkin isotherm
Self-assembled monolayer

Cite this

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title = "Study of the Formation Process of an Azobenzene Self-assembled Monolayer on Gold Surface",

abstract = "The formation kinetics of the self-assembled monolayer (SAM) of an azobenzenealkanethiol, denoted as AzoC2SH on gold surface was studied using electrochemical techniques, and the monolayers prepared at different assembly times and concentration were also investigated. A two-step adsorption kinetics has been confirmed: the fast adsorption process and the following long-term reorganization. The equilibrium constant (K) for the adsorptioon and the interaction factor between adsorbate-adsorbate molecules (δ) were evaluated based on the Frumkin isotherm and determined to be (3.17±0.13)×106 mol·L-1 and -0.34±0.04, respectively. The Gibbs free energy (ΔG) of SAM was determined to be -(37.07±0.13) kJ·mol-1.",

keywords = "Azobenzene, Frumkin isotherm, Self-assembled monolayer",

author = "Huibo Shao and Huazhong Yu and Guangjun Cheng and Haoli Zhang and Zhongfan Liu",

year = "1998",

language = "English",

volume = "14",

pages = "850--851",

journal = "Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica",

issn = "1000-6818",

publisher = "Elsevier B.V.",

number = "9",

}

TY - JOUR

T1 - Study of the Formation Process of an Azobenzene Self-assembled Monolayer on Gold Surface

AU - Shao, Huibo

AU - Yu, Huazhong

AU - Cheng, Guangjun

AU - Zhang, Haoli

AU - Liu, Zhongfan

PY - 1998

Y1 - 1998

N2 - The formation kinetics of the self-assembled monolayer (SAM) of an azobenzenealkanethiol, denoted as AzoC2SH on gold surface was studied using electrochemical techniques, and the monolayers prepared at different assembly times and concentration were also investigated. A two-step adsorption kinetics has been confirmed: the fast adsorption process and the following long-term reorganization. The equilibrium constant (K) for the adsorptioon and the interaction factor between adsorbate-adsorbate molecules (δ) were evaluated based on the Frumkin isotherm and determined to be (3.17±0.13)×106 mol·L-1 and -0.34±0.04, respectively. The Gibbs free energy (ΔG) of SAM was determined to be -(37.07±0.13) kJ·mol-1.

AB - The formation kinetics of the self-assembled monolayer (SAM) of an azobenzenealkanethiol, denoted as AzoC2SH on gold surface was studied using electrochemical techniques, and the monolayers prepared at different assembly times and concentration were also investigated. A two-step adsorption kinetics has been confirmed: the fast adsorption process and the following long-term reorganization. The equilibrium constant (K) for the adsorptioon and the interaction factor between adsorbate-adsorbate molecules (δ) were evaluated based on the Frumkin isotherm and determined to be (3.17±0.13)×106 mol·L-1 and -0.34±0.04, respectively. The Gibbs free energy (ΔG) of SAM was determined to be -(37.07±0.13) kJ·mol-1.

KW - Azobenzene

KW - Frumkin isotherm

KW - Self-assembled monolayer

UR - https://www.scopus.com/pages/publications/2742521480

M3 - Article

AN - SCOPUS:2742521480

SN - 1000-6818

VL - 14

SP - 850

EP - 851

JO - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

JF - Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica

IS - 9

ER -

Study of the Formation Process of an Azobenzene Self-assembled Monolayer on Gold Surface

Abstract

Keywords

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