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Hydrophobic ionic liquids

Patent ·
OSTI ID:871934
 [1];  [2];  [3]
  1. Lincoln, MA
  2. Lynn, MA
  3. Nashua, NH
+ Show Author Affiliations

Ionic liquids having improved properties for application in non-aqueous batteries, electrochemical capacitors, electroplating, catalysis and chemical separations are disclosed. Exemplary compounds have one of the following formulas: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are either H; F; separate alkyl groups of from 1 to 4 carbon atoms, respectively, or joined together to constitute a unitary alkylene radical of from 2 to 4 carbon atoms forming a ring structure converging on N; or separate phenyl groups; and wherein the alkyl groups, alkylene radicals or phenyl groups may be substituted with electron withdrawing groups, preferably F--, Cl--, CF.sub.3 --, SF.sub.5 --, CF.sub.3 S--, (CF.sub.3).sub.2 CHS-- or (CF.sub.3).sub.3 CS--; and X.sup.- is a non-Lewis acid-containing polyatomic anion having a van der Waals volume exceeding 100 .ANG..sup.3.

Research Organization:
COVALENT ASSOC INC
DOE Contract Number:
FG02-96ER82149
Assignee:
Covalent Associates Incorporated (Woburn, MA)
Patent Number(s):
US 5827602
OSTI ID:
871934
Country of Publication:
United States
Language:
English

References (4)

Air and water stable 1-ethyl-3-methylimidazolium based ionic liquids journal January 1992
Organic Chloroaluminate Ambient Temperature Molten Salts book January 1987
A Substituted Imidazolium Chloroaluminate Molten Salt Possessing an Increased Electrochemical Window journal January 1987
Nuclear Magnetic Resonance in Molten Salts book January 1987

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Related Subjects

/204/252/361/429/
100
acid-containing
alkyl
alkylene
ang
anion
application
atoms
batteries
capacitors
carbon
carbon atom
carbon atoms
catalysis
cf
chemical
chemical separation
chemical separations
chs--
cl--
compounds
constitute
containing poly
converging
cs--
disclosed
electrochemical
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electrochemical capacitors
electron
electroplating
exceeding
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f--
following
forming
formulas
hydrophobic
improved
improved properties
ionic
ionic liquid
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joined
lewis acid
liquids
non-aqueous
non-lewis
phenyl
polyatomic
preferably
properties
radical
radicals
respectively
s--
separate
separations
sf
str1
structure
substituted
unitary
van
volume
waals
withdrawing