Reversible adsorption change of 2-amino-4,5-imidazoledicarbonitrile on Ag electrode surfaces by potential-dependent surface-enhanced Raman scattering

Yun Hee Jang; Sungu Hwang; Keunchang Cho; Manho Lim; Taiha Joo; Suhee Choi; Jongwon Kim; Sang Woo Joo

doi:10.1002/sia.3626

Reversible adsorption change of 2-amino-4,5-imidazoledicarbonitrile on Ag electrode surfaces by potential-dependent surface-enhanced Raman scattering

Yun Hee Jang
, Sungu Hwang
, Keunchang Cho
, Manho Lim
, Taiha Joo
, Suhee Choi
, Jongwon Kim
, Sang Woo Joo

Department of Energy and Science and Engineering

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

2 Scopus citations

Abstract

The potential-induced adsorption change of 2-amino-4,5- imidazoledicarbonitrile (AIDCN) on Ag electrode surfaces has been examined by surface-enhanced Raman scattering (SERS) in an applied potential range between -1.0 and 0.2 V. Upon adsorption, AIDCN has a substantial interaction with the Ag metal surfaces via its two nitrile groups. The CN stretching peaks at ∼2200 cm^-1 appeared to be more intensified and redshifted at a negative potential. The deconvolution peak analysis of the CN bands at various voltages suggests that there should be a change in binding modes of AIDCN on Ag surfaces. This potential-dependent orientation change appeared to be reversible. The density functional theory (DFT) calculation of AIDCN on Ag cluster atoms is used to explain its potential-dependent adsorption.

Original language	English
Pages (from-to)	757-762
Number of pages	6
Journal	Surface and Interface Analysis
Volume	43
Issue number	3
DOIs	https://doi.org/10.1002/sia.3626
State	Published - Mar 2011

Keywords

2-Amino-4,5-imidazoledicarbonitrile
Ag
DFT calculation
adsorption
potential-dependent SERS

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10.1002/sia.3626

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@article{2731594643954b219cd315952ea9ddb5,

title = "Reversible adsorption change of 2-amino-4,5-imidazoledicarbonitrile on Ag electrode surfaces by potential-dependent surface-enhanced Raman scattering",

abstract = "The potential-induced adsorption change of 2-amino-4,5- imidazoledicarbonitrile (AIDCN) on Ag electrode surfaces has been examined by surface-enhanced Raman scattering (SERS) in an applied potential range between -1.0 and 0.2 V. Upon adsorption, AIDCN has a substantial interaction with the Ag metal surfaces via its two nitrile groups. The CN stretching peaks at ∼2200 cm-1 appeared to be more intensified and redshifted at a negative potential. The deconvolution peak analysis of the CN bands at various voltages suggests that there should be a change in binding modes of AIDCN on Ag surfaces. This potential-dependent orientation change appeared to be reversible. The density functional theory (DFT) calculation of AIDCN on Ag cluster atoms is used to explain its potential-dependent adsorption.",

keywords = "2-Amino-4,5-imidazoledicarbonitrile, Ag, DFT calculation, adsorption, potential-dependent SERS",

author = "Jang, \{Yun Hee\} and Sungu Hwang and Keunchang Cho and Manho Lim and Taiha Joo and Suhee Choi and Jongwon Kim and Joo, \{Sang Woo\}",

year = "2011",

month = mar,

doi = "10.1002/sia.3626",

language = "English",

volume = "43",

pages = "757--762",

journal = "Surface and Interface Analysis",

issn = "0142-2421",

publisher = "John Wiley and Sons Ltd",

number = "3",

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TY - JOUR

T1 - Reversible adsorption change of 2-amino-4,5-imidazoledicarbonitrile on Ag electrode surfaces by potential-dependent surface-enhanced Raman scattering

AU - Jang, Yun Hee

AU - Hwang, Sungu

AU - Cho, Keunchang

AU - Lim, Manho

AU - Joo, Taiha

AU - Choi, Suhee

AU - Kim, Jongwon

AU - Joo, Sang Woo

PY - 2011/3

Y1 - 2011/3

N2 - The potential-induced adsorption change of 2-amino-4,5- imidazoledicarbonitrile (AIDCN) on Ag electrode surfaces has been examined by surface-enhanced Raman scattering (SERS) in an applied potential range between -1.0 and 0.2 V. Upon adsorption, AIDCN has a substantial interaction with the Ag metal surfaces via its two nitrile groups. The CN stretching peaks at ∼2200 cm-1 appeared to be more intensified and redshifted at a negative potential. The deconvolution peak analysis of the CN bands at various voltages suggests that there should be a change in binding modes of AIDCN on Ag surfaces. This potential-dependent orientation change appeared to be reversible. The density functional theory (DFT) calculation of AIDCN on Ag cluster atoms is used to explain its potential-dependent adsorption.

AB - The potential-induced adsorption change of 2-amino-4,5- imidazoledicarbonitrile (AIDCN) on Ag electrode surfaces has been examined by surface-enhanced Raman scattering (SERS) in an applied potential range between -1.0 and 0.2 V. Upon adsorption, AIDCN has a substantial interaction with the Ag metal surfaces via its two nitrile groups. The CN stretching peaks at ∼2200 cm-1 appeared to be more intensified and redshifted at a negative potential. The deconvolution peak analysis of the CN bands at various voltages suggests that there should be a change in binding modes of AIDCN on Ag surfaces. This potential-dependent orientation change appeared to be reversible. The density functional theory (DFT) calculation of AIDCN on Ag cluster atoms is used to explain its potential-dependent adsorption.

KW - 2-Amino-4,5-imidazoledicarbonitrile

KW - Ag

KW - DFT calculation

KW - adsorption

KW - potential-dependent SERS

UR - https://www.scopus.com/pages/publications/79951488458

U2 - 10.1002/sia.3626

DO - 10.1002/sia.3626

M3 - Article

AN - SCOPUS:79951488458

SN - 0142-2421

VL - 43

SP - 757

EP - 762

JO - Surface and Interface Analysis

JF - Surface and Interface Analysis

IS - 3

ER -

Reversible adsorption change of 2-amino-4,5-imidazoledicarbonitrile on Ag electrode surfaces by potential-dependent surface-enhanced Raman scattering

Abstract

Keywords

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