Structure of [C4mpyr][NTf2] Room-Temperature Ionic Liquid at Charged Gold Interfaces

被引：101

作者：

Lauw, Yansen ^{[1
,2
]}

Horne, Michael D. ^{[2
]}

Rodopoulos, Theo ^{[2
]}

Lockett, Vera ^{[3
]}

Akgun, Bulent ^{[4
,5
]}

Hamilton, William A. ^{[1
]}

Nelson, Andrew R. J. ^{[1
]}

机构：

[1] Australian Nucl Sci & Technol Org, Kirrawee Dc, NSW 2232, Australia

[2] CSIRO Proc Sci & Engn, Clayton, Vic 3169, Australia

[3] Univ S Australia, Ian Wark Res Inst, Mawson Lakes, SA 5095, Australia

[4] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[5] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

来源：

LANGMUIR | 2012年 / 28卷 / 19期

关键词：

ENHANCED RAMAN-SCATTERING; ELECTRICAL DOUBLE-LAYER; DIFFERENTIAL CAPACITANCE; ADSORPTION; ELECTRODEPOSITION; SPECTROSCOPY; ELECTROLYTE; ENERGY; MODEL; STM;

D O I：

10.1021/la3005757

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structure of 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([C(4)mpyr][NTf2]) room-temperature ionic liquid at an electrified gold interface was studied using neutron reflectometry, cyclic voltammetry, and differential capacitance measurements. Subtle differences were observed between the reflectivity data collected on a gold electrode at three different applied potentials. Detailed analysis of the fitted reflectivity data reveals an excess of [C(4)mpyr] at the interface, with the amount decreasing at increasingly positive potentials. A cation rich interface was found even at a positively charged electrode, which indicates a nonelectrostatic (specific) adsorption of [C(4)mpyr] onto the gold electrode.

引用

页码：7374 / 7381

页数：8

共 64 条

[41]

Mezger M., 2009, J CHEM PHYS, P131

[42] Molecular layering of fluorinated ionic liquids at a charged sapphire (0001) surface [J].

Mezger, Markus ;

Schroder, Heiko ;

Reichert, Harald ;

Schramm, Sebastian ;

Okasinski, John S. ;

Schoder, Sebastian ;

Honkimaki, Veijo ;

Deutsch, Moshe ;

Ocko, Benjamin M. ;

Ralston, John ;

Rohwerder, Michael ;

Stratmann, Martin ;

Dosch, Helmut .

SCIENCE, 2008, 322 (5900) :424-428

[43] Electrodeposition of al in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ionic liquids: In situ STM and EQCM studies [J].

Moustafa, E. M. ;

El Abedin, S. Zein ;

Shkurankov, A. ;

Zschippang, E. ;

Saad, A. Y. ;

Bund, A. ;

Endres, F. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2007, 111 (18) :4693-4704

[44] Co-refinement of multiple-contrast neutron/X-ray reflectivity data using MOTOFIT [J].

Nelson, A .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2006, 39 :273-276

[45] Motofit - integrating neutron reflectometry acquisition, reduction and analysis into one, easy to use, package [J].

Nelson, Andrew .

INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009, 2010, 251

[46] CHARACTERIZATION OF SURFACES BY GRAZING X-RAY REFLECTION - APPLICATION TO STUDY OF POLISHING OF SOME SILICATE-GLASSES [J].

NEVOT, L ;

CROCE, P .

REVUE DE PHYSIQUE APPLIQUEE, 1980, 15 (03) :761-779

[47] A NEW APPROACH TO DEVELOPMENT OF IONIC ISOTHERMS OF SPECIFIC ADSORPTION IN THE ELECTRICAL DOUBLE-LAYER [J].

NIKITAS, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (26) :6577-6585

[48] A Gouy-Chapman-Stern model of the double layer at a (metal)/(ionic liquid) interface [J].

Oldham, Keith B. .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2008, 613 (02) :131-138

[49] THE SPECIFIC ADSORPTION OF IONS AT THE METAL-ELECTROLYTE INTERPHASE [J].

PARSONS, R .

TRANSACTIONS OF THE FARADAY SOCIETY, 1955, 51 (11) :1518-1529

[50] Electrochemical charge transfer at a metallic electrode: A simulation study [J].

Reed, Stewart K. ;

Madden, Paul A. ;

Papadopoulos, Aristides .

JOURNAL OF CHEMICAL PHYSICS, 2008, 128 (12)

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