AI Article Synopsis
- The study investigates the decomposition of formic acid into carbon dioxide and hydrogen in the ionic liquid 1,3-dipropyl-2-methylimidazolium formate, where the equilibrium strongly favors formic acid due to effective solvation.
- It was found that using this ionic liquid instead of water significantly decreases the pressures needed to convert hydrogen and carbon dioxide back into formic acid, making the reaction more efficient.
- This milder reaction condition presents a potential method for hydrogen storage and transportation using formic acid as a medium.
Article Abstract
The equilibrium for the reversible decomposition of formic acid into carbon dioxide and hydrogen is studied in the ionic liquid (IL) 1,3-dipropyl-2-methylimidazolium formate. The equilibrium is strongly favored to the formic acid side because of the strong solvation of formic acid in the IL through the strong Coulombic solute-solvent interactions. The comparison of the equilibrium constants in the IL and water has shown that the pressures required to transform hydrogen and carbon dioxide into formic acid can be reduced by a factor of approximately 100 by using the IL instead of water. The hydrogen transformation in such mild conditions can be a chemical basis for the hydrogen storage and transportation using formic acid.
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| http://dx.doi.org/10.1021/jp908174s | DOI Listing |
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