In-Situ Observation of Functional Solvents at High Pressures

Abstract

This article reports the original high-pressure apparatuses for in-situ observation of functional solvents under high-pressure conditions. First, we describe the instruments to measure gas solubility and volume expansivity over the wide ranges of temperature and pressure, and discuss the high-pressure gas solubilities in the ionic liquid chemical absorbents. Next, the experimental setup for the high-pressure NMR spectroscopy and electrochemical measurements is presented with the chemical shifts and transport properties in the CO₂ dissolved liquids.