In Situ Infrared Spectroscopy Study of PYR14TFSI Ionic Liquid Stability for Li-O2 Battery

被引：43
作者：
Mozhzhukhina, Nataliia [1 ]
Tesio, Alvaro Y. [1 ]
Mendez De Leo, Lucila P. [1 ]
Calvo, Ernesto J. [1 ]
机构：
[1] Univ Buenos Aires, INQUIMAE, CONICET, Fac Ciencias Exactas & Nat, Ciudad Univ, RA-1428 Buenos Aires, DF, Argentina
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2017年 / 164卷 / 02期
关键词：
OXYGEN REDUCTION REACTION; METAL-AIR BATTERIES; LITHIUM-AIR; ELECTROCHEMICAL REDUCTION; ELECTROREDUCTION; ELECTROLYTES; CHALLENGES; SURFACE;
D O I：
10.1149/2.1391702jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In situ infrared subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments were performed simultaneously with the electrochemical experiments relevant to Li-air battery operation on gold cathodes in ionic liquid PYR14TFSI based electrolyte. Ionic liquid anion was found to be stable, while the cation PYR14+ was found to decompose in studied conditions. In oxygen saturated LiTFSI containing PYR14TFSI electrolyte carbon dioxide and water were formed at potential 4.3 V either with or without previous oxygen electro-reduction reaction. However in deoxygenated LiTFSI contacting ionic liquid no formation of CO2 or water was observed, suggesting oxygen presence to be crucial in carbon dioxide production. (C) 2017 The Electrochemical Society. All rights reserved.
引用
收藏
页码：A518 / A523
页数：6
相关论文
共 49 条
[1]  
Abraham KM, 2013, ELEC SOC S, P161
[2]   Oxygen Reduction Reactions in Ionic Liquids and the Formulation of a General ORR Mechanism for Li-Air Batteries [J].
Allen, Chris J. ;
Hwang, Jaehee ;
Kautz, Roger ;
Mukerjee, Sanjeev ;
Plichta, Edward J. ;
Hendrickson, Mary A. ;
Abraham, K. M. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (39) :20755-20764
[3]   Oxygen Electrode Rechargeability in an Ionic Liquid for the Li-Air Battery [J].
Allen, Chris J. ;
Mukerjee, Sanjeey ;
Plichta, Edward J. ;
Hendrickson, Mary A. ;
Abraham, K. M. .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2011, 2 (19) :2420-2424
[4]   Superoxide electrochemistry in an ionic liquid [J].
AlNashef, IM ;
Leonard, ML ;
Matthews, MA ;
Weidner, JW .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2002, 41 (18) :4475-4478
[5]   Rechargeable lithium batteries and beyond: Progress, Challenges, and future directions [J].
Amine, Khalil ;
Kanno, Ryoji ;
Tzeng, Yonhua .
MRS BULLETIN, 2014, 39 (05) :395-405
[6]  
[Anonymous], 1991, The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules
[7]   Differential electrochemical mass spectrometry [J].
Baltruschat, H .
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 2004, 15 (12) :1693-1706
[8]  
Baltruschat H., 2014, ENCY APPL ELECTROCHE, P507
[9]   The kinetics of oxygen electroreduction: A long way from iron rust to lithium-air batteries [J].
Calvo, E. J. .
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2014, 65 (04) :345-350
[10]   ELECTROCHEMICAL REDUCTION OF DIOXYGEN IN ROOM-TEMPERATURE IMIDAZOLIUM CHLORIDE-ALUMINUM CHLORIDE MOLTEN-SALTS [J].
CARTER, MT ;
HUSSEY, CL ;
STRUBINGER, SKD ;
OSTERYOUNG, RA .
INORGANIC CHEMISTRY, 1991, 30 (05) :1149-1151
12345