Properties of asymmetric benzyl-substituted ammonium ionic liquids and their electrochemical properties

被引：26

作者：

Kim, K ^{[1
]}

Lang, CM ^{[1
]}

Kohl, PA ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2005年 / 152卷 / 02期

关键词：

D O I：

10.1149/1.1850335

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Benzyl-substituted quaternary ammonium ions were used to form room-temperature ionic liquids with chloroaluminate ions. Asymmetric ammonium structures significantly lowered the melting point of the ionic liquid. Asymmetric benzyl-substituted ammonium chlorides were mixed with AlCl3 to form acidic room-temperature ionic liquids. It is shown that the melting point and viscosity are a function of the symmetry of the quaternary ammonium ion and its molecular weight. Asymmetry and low molecular weight favor lower viscosity and melting point, and higher conductivity. These liquids were neutralized with NaCl and tested as electrolytes for sodium batteries. The neutralized ionic liquid of benzyldimethylethylammonium chloride had a low self-discharge current (3.96 muA/cm(2)) at room temperature on a platinum electrode substrate. (C) 2005 The Electrochemical Society.

引用

页码：E56 / E60

页数：5

共 20 条

[1] A SODIUM IRON(II) CHLORIDE CELL WITH A BETA-ALUMINA ELECTROLYTE [J].

BONES, RJ ;

COETZER, J ;

GALLOWAY, RC ;

TEAGLE, DA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (10) :2379-2382

[2] Electrochemistry of gallium in the Lewis acidic aluminum chloride-1-methyl-3-ethylimidazolium chloride room-temperature molten salt [J].

Chen, PY ;

Lin, YF ;

Sun, IW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (09) :3290-3294

[3] PROPERTIES OF 1,3-DIALKYLIMIDAZOLIUM CHLORIDE ALUMINUM-CHLORIDE IONIC LIQUIDS .2. PHASE-TRANSITIONS, DENSITIES, ELECTRICAL CONDUCTIVITIES, AND VISCOSITIES [J].

FANNIN, AA ;

FLOREANI, DA ;

KING, LA ;

LANDERS, JS ;

PIERSMA, BJ ;

STECH, DJ ;

VAUGHN, RL ;

WILKES, JS ;

WILLIAMS, JL .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (12) :2614-2621

[4] Plating end shipping of sodium from a room temperature 1,2-dimethyl-3-propylimidazolium chloride melt [J].

Gray, GE ;

Winnick, J ;

Kohl, PA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (07) :2262-2266

[5] Plating and stripping of sodium from a room temperature 1-methyl-3-propylimidazolium chloride melt [J].

Gray, GE ;

Winnick, J ;

Kohl, PA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (12) :3820-3824

[6] STABILITY OF SODIUM ELECTRODEPOSITED FROM A ROOM-TEMPERATURE CHLOROALUMINATE MOLTEN-SALT [J].

GRAY, GE ;

KOHL, PA ;

WINNICK, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (11) :3636-3642

[7] LOW-TEMPERATURE MOLTEN-SALT ELECTROLYTES BASED ON ARALKYL QUATERNARY OR TERNARY ONIUM SALTS [J].

JONES, SD ;

BLOMGREN, GE .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (02) :424-427

[8] The role of additives in the electroreduction of sodium ions in chloroaluminate-based ionic liquids [J].

Kim, K ;

Lang, C ;

Kohl, PA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (01) :E9-E13

[9] Electrochemical investigation of quaternary ammonium/aluminum chloride ionic liquids [J].

Kim, K ;

Lang, C ;

Moulton, R ;

Kohl, PA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (08) :A1168-A1172

[10] Use of the Ag/AgCl/Cl- electrode to estimate solubility products in ambient temperature ionic liquids [J].

Koronaios, P ;

Osteryoung, RA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (09) :3414-3419

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