Premium
Electrochemical Measurement of Gold Oxide Reduction and Methods for Acid Neutralization and Minimization of Water in Wet Ionic Liquid
Author(s) -
Droessler Janelle E.,
Czerwinski Kenneth R.,
Hatchett David W.
Publication year - 2014
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400450
Subject(s) - ionic liquid , electrochemistry , chemistry , oxide , inorganic chemistry , ionic bonding , imide , neutralization , electrode , ion , catalysis , organic chemistry , antibody , immunology , biology
The formation and reduction of gold oxide in wet ionic liquid (IL), N ‐trimethyl‐ N ‐butylammonium bis(trifluoromethanesulfonyl)imide, ([Me 3 N n Bu][TFSI]) is examined. The water concentration is determined using both the charge and peak current from the reduction of gold oxide and compared directly with Karl Fischer data. The quantitative determination of water in the IL is demonstrated for concentrations between 0.09 and 0.74 by weight (w%). The treatment of wet IL with dry nitrogen or molecular sieves reduces the water below background levels. Finally, methods for acid neutralization and the reduction of water with molecular sieves are conducted to minimize their impact on subsequent electrochemical measurements.