Negative Differential Resistance and Ion Emission from The Taylor Cone of Undiluted Ionic Liquid Generated by a Voltage-Driven High-Pressure Electrospray

The characteristics of the spray current, flow rate, effect of ambient gas pressure, and generated ion species from the Taylor cone of an undiluted ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate, Emim-BF<sub>4</sub>) are investigated using a voltage-driven high-pressure elec...

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Bibliographic Details
Main Author:	Takeshi Matsuda (14669152) (author)
Other Authors:	Lee Chuin Chen (8676456) (author)
Published:	2025
Subjects:	Biophysics Physiology Ecology Marine Biology Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified wide dynamic range outlet inner diameter orbitrap mass spectrometer negative differential resistance ions evaporated directly detectable cluster ions undiluted ionic liquid sup >+</ sup bore emitter capillary ion species reached generated ion beam min ), deviation ambient gas pressure generated ion species 2 </ sup ∼ 40 nl spray current slightly low flow rate 4 </ sub ions generated flow rate spray current >< sup major species ion evaporation ion emission 4 mm minimum current 10 nl low voltage emitter voltage v </ q </ n </ ∼ 0 undiluted emim taylor cone scaling law relatively large pressure electrospray pressure condition order clusters methylimidazolium tetrafluoroborate measurement reveals less abundant highly collimated electric discharge dependent characteristic cationized molecule >< sub
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Negative Differential Resistance and Ion Emission from The Taylor Cone of Undiluted Ionic Liquid Generated by a Voltage-Driven High-Pressure Electrospray

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