Work

The Direct Piezoelectric Effect in Deep Eutectic Solvents

Year: 2026

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide We report the direct piezoelectric response of four deep eutectic solvents (DESs): choline chloride:ethylene glycol (ChCl:EG), choline chloride:glycerol (ChCl:Gly), choline chloride:1,3-propanediol (ChCl:PD), and choline chloride:urea (ChCl:urea). Measurement of current as a function of applied force produces a linear relationship from which the piezoelectric coefficient ( d 33 ) was determined. The piezoelectric effect has previously been observed in room-temperature ionic liquids (RTILs), attributable to a pressure-induced liquid-to-crystalline solid phase transition. The observation of this phenomenon in DESs is unprecedented and underscores its generality. The magnitude of d 33 in these DESs is similar to that for RTILs, suggesting the potential to tune the piezoelectric response through careful selection of the DES constituents and constituent ratios.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.5c21126

Authors: Allison M. Stettler, Sheryl S. Blanchard, Gary A. Baker, G. J. Blanchard

Institutions: Michigan State University, University of Missouri

Language: English

Topic: Ionic liquids properties and applications

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funder: National Science Foundation