ZB 06 - Nanoelectrochemistry (W.Nogala)

Locally sculptured modification of the electrochemical response of conductive poly(lactic acid) 3D prints by femtosecond laser processing

Author(s): Cieslik, Mateusz and Sawczak, Miroslaw and Jendrzejewski, Rafal and Celej, Joanna and Nogala, Wojciech and Ryl, Jacek
Title: Locally sculptured modification of the electrochemical response of conductive poly(lactic acid) 3D prints by femtosecond laser processing
Abstract: This manuscript presents an approach to sculpture high electrochemical of the 3D printed electrodes with poly(lactic acid) (PLA) and carbon black (CB) filler by femtosecond laser (FSL) ablation. utility for electrochemical applications depends on a surface aiming to remove the PLA and uncover the conductive CB. We discussed how laser pulse energy is critical for such an activation The best performance was obtained for 4.1 J cm(-2), while electron microscopy (SEM) shows only partial evaporation of PLA lower energy densities. Next, we have confirmed the efficiency of sculptured CBPLA surface activation by FSL treatment, obtaining linearity between electrochemically active surface and FSL-treated from cyclic voltammetry (CV) and electrochemical impedance (EIS) studies. The electrode's efficient sculpturing of 0.2 mm in width was confirmed with electrochemical microscopy Finally, by using X-ray photoelectron spectroscopy (XPS) and spectroscopy, we confirmed no significant oxidation of the CB after FSL treatment. We revealed significant differences with by longer nanosecond laser pulses, where significant heat to the electrode surface contributed to partial melting and of the PLA, negatively influencing the activation efficiency.
Journal: ELECTROCHIMICA ACTA
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Addres: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Volume: 416
ID: WOS:000805290800004
Year: 2022
URL: https://doi.org/10.1016/j.electacta.2022.140288
DOI: 10.1016/j.electacta.2022.140288