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Development and characterization of a biomaterial (Centella Asiatica Leaf)-based electrolyte for electrochemical devices by T. Sabeetha; M. V. Leena Chandra; S. Selvasekarapandian; N. Muniraj Vignesh; R. Meera Naachiyar; S. Aafrin Hazaana is a Engineering article available to read on EtoBox.

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Biomaterial, Centella Asiatica Leaf (CAL), has been developed as a bio-membrane electrolyte with ammonium thiocyanate (NH 4 SCN) by the solution casting method for proton conducting electrochemical devices. The amorphous/crystalline nature of the prepared bio-membranes has been analyzed using XRD. DSC measurement has been used to find the T g of the membranes. AC impedance measurement shows 1 g CAL + 0.7 M. wt% NH 4 SCN bio-membrane possesses a high proton conductivity value of 9.31 ± 0.25 × 10 -3 S/cm at ambient temperature. Transport parameters have been calculated for the prepared bio-membranes. SEM and thermal stability (TGA) measurements have been made for pure CAL and the highest conducting bio-membranes. The tensile strength of the highest conducting bio-membrane has been estimated by mechanical strength analysis. The electrochemical stability of 2.05 V has been found for the highest proton-conducting bio-membrane using LSV. The primary proton battery and PEM fuel cell with the highest proton conducting bio-membrane show an OCV of 1.55 V and 448 mV, respectively.

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Author

T. Sabeetha; M. V. Leena Chandra; S. Selvasekarapandian; N. Muniraj Vignesh; R. Meera Naachiyar; S. Aafrin Hazaana

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Engineering (Physical Sciences)