Additive-free Electrodeposition of SnCoNi Trimetallic Catalysts for Ethanol Electrooxidation
DOI:
https://doi.org/10.56425/cma.v3i3.84Keywords:
electrodeposition, ethanol electrooxidation,, electrocatalystAbstract
SnCoNi catalysts were synthesized via electrodeposition, with and without citric acid, to assess their ethanol electrooxidation performance. The additive-free catalyst exhibited superior properties, including lower charge transfer resistance and a smaller Tafel slope compared to the citric acid-modified catalyst. Chronoamperometry testing further revealed better electrochemical stability for the additive-free catalyst, with less current loss over time. Cyclic voltammetry confirmed the enhanced ethanol oxidation activity with a relatively high current density. The improved performance is attributed to better mass transport, active site exposure, and the synergistic effects of Sn, Co, and Ni in the additive-free catalyst, making it more efficient for ethanol electrooxidation. These findings suggest that the additive-free catalyst exhibits more favorable properties for ethanol electrooxidation compared to its citric acid-modified counterpart.
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Copyright (c) 2024 Qori'atun Ni'mah Salsabila, Fabian Glorious Kenaya, Muhammad Fathar Aulia, Muhammad Athariq
This work is licensed under a Creative Commons Attribution 4.0 International License.