| Autor: |
Miao S; School of Chemistry and Sydney Nano Institute, The University of Sydney, NSW 2006, Australia., Jiang HJ; School of Chemistry and Sydney Nano Institute, The University of Sydney, NSW 2006, Australia., Imberti S; STFC, ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom., Atkin R; School of Molecular Sciences, The University of Western Australia, WA 6009, Australia., Warr G; School of Chemistry and Sydney Nano Institute, The University of Sydney, NSW 2006, Australia. |
| Abstrakt: |
We have investigated the structure and phase behavior of biocompatible, aqueous deep eutectic solvents by combining choline acetate, hydrogen aspartate, and aspartate amino acid salts with water as the sole molecular hydrogen bond donor. Using contrast-variation neutron diffraction, interpreted via computational modeling, we show how the interplay between anion structure and water content affects the hydrogen bond network structure in the liquid, which, in turn, influences the eutectic composition and temperature. These mixtures expand the current range choline amino acid ionic liquids under investigation for biomass processing applications to include higher melting point salts and also explain how the ionic liquids retain their desirable properties in aqueous solution. |
