Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 134, Issue 22, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3598470
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Funding
- Sandia's LDRD
- U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
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Accumulation of greenhouse gases, especially carbon dioxide, is believed to be the key factor in global climate change. To develop effective ways to remove CO2 from the atmosphere, it is helpful to understand the mechanism of CO2 solvation first. Here we investigate the thermodynamics of CO2 hydration using quasi-chemical theory. Two approaches for estimating hydration free energy are carried out. Both agree reasonably well with experimental measurements. Analysis of the free energy components reveals that the weak hydration free energy results from a balance of unfavorable molecular packing and favorable chemical association. (C) 2011 American Institute of Physics. [doi:10.1063/1.3598470]
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