What is it about?
Electrospray is a way to produce nano/micro-particles or ions by applying strong electric field to a liquid. Concentrated aqueous solutions with high conductivity have been proven difficult to be stably electrosprayed. This paper presents a more convenient method to ionize the concentrated aqueous solution (0.08 mol/L) than the previous attempts and proves the feasibility of coaxially electrospraying two highly conductive liquids (∼1 S/m).
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Why is it important?
The electrospray of aqueous solution has been widely used in many fields such as spray cooling, ion source for mass spectrometry, nano/micro-particles production, and electrospray thruster. The proposed method here implies that a large variety of concentrated aqueous solutions can be stably electrosprayed in these scenarios. In addition, the stable electrospray of concentrated aqueous solution with high conductivity facilitates the formation of charged particles with high charge to mass ratio.
Read the Original
This page is a summary of: Stably electrospraying highly conductive sodium chloride aqueous solution coated with outer ionic liquid using coaxial capillary, Physics of Fluids, September 2022, American Institute of Physics, DOI: 10.1063/5.0104334.
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