New Paper: "Acoustic emission as a function of polarisation"

19 November 2019

CNIE in collaboration with the Electrochemical Innovation lab (EIL) have published a new paper in the reputed Electrochemistry Communications titled "Acoustic emission as a function of polarisation: Diagnosis of polymer electrolyte fuel cell hydration state".

This study discusses the development of “acoustic emission as a function of polarisation (AEfP)” as a novel approach of an established acoustic emission (AE) technique, correlating performance under fuel cell polarisation with its corresponding AE measurements, which are simpler and more cost effective to identify water dynamics in fuel cell flow channels. Liquid water evaluation in operating fuel cells is gaining importance in diagnosing cell performance, therefore, this method will attract significant interest from the electrochemical community. Authors of the paper include current CNIE researchers, Sasank (Viswanath) Bethapudi, Dan Brett & Marc-Olivier Coppens amongst other collaborators. The work was partly supported by EPSRC and the National Physical Laboratory (NPL).

Paper: V.S. Bethapudi, M. Maier, G. Hinds, P.R. Shearing, D.J.L. Brett, M.-O. Coppens, Acoustic emission as a function of polarisation: Diagnosis of polymer electrolyte fuel cell hydration state, Electrochemistry Communications, 2019, 109, 10582. [Link]

New Paper: "Acoustic emission as a function of polarisation"