Amino Acid Ionic Liquids
Department of Biotechnology,
Tokyo University of
Agriculture and Technology
Leuven Summer School
Salts with very low melting point.
How to lower
the melting point of salts?
Good solvent for
High ion density
Green Chemistry Green Chemistry
Ionic liquids having electrochemical function
Alkali metal IL
Liquid crystalline IL
Amino acid IL
H2N CH C
Salts containing small ions are
difficult to liquidize!
T. Mizumo, H. Ohno, et al., Chem. Lett., 33, 1360 (2004)
W. Ogihara, M.Yoshizawa, and H. Ohno, Chem. Lett., 880 (2002)
For small anions such as Cl-
Less viscous and more polar
For small cations
○○Chemical industries based on OIL will shift to
those using SOLAR energy through the use of
○○ For that, it is extremely important to proceed
energy conversion considering efficiency and cost.
○○Paradime shift from fossile energy to biomass
energy should be one of important tasks.
○○Ionic liquids should be very important strategic
materials in the near future.
Some books on ionic liquids
Review of the functional ionic liquids
Bull. Chem. Soc. Jpn. 79, 1665-1680 (2006)
This review is access free. Everybody can enjoy it.
Review of ionic liquids for electrochemistry
Nature Materials, 8, 621-629 (2009)
Ionic-liquid materials for the electrochemical challenges of the future
Michel Armand1, Frank Endres2, Douglas R. MacFarlane3, Hiroyuki Ohno4& Bruno Scrosati5
Ionic liquids are room-temperature molten salts, composed mostly of organic ions that may undergo
almost unlimited structural variations. This review covers the newest aspects of ionic liquids in
applications where their ion conductivity is exploited; as electrochemical solvents for metal/semiconductor
electrodeposition, and as batteries and fuel cells where conventional media, organic solvents (in batteries)
or water (in polymer-electrolyte-membrane fuel cells), fail. Biology and biomimetic processes in ionic
liquids are also discussed. In these decidedly different materials, some enzymes show activity that is not
exhibited in more traditional systems, creating huge potential for bioinspired catalysis and biofuel cells.
Our goal in this review is to survey the recent key developments and issues within ionic-liquid research in
these areas. As well as informing materials scientists, we hope to generate interest in the wider
community and encourage others to make use of ionic liquids in tackling scientific challenges.
MEXT (#21225007, 17073005)
21stCentury COE Program, TUAT
The ideal solution!The ideal solution!