Additive-free Electrodeposition of SnCoNi Trimetallic Catalysts for Ethanol Electrooxidation

Authors

  • Qori'atun Ni'mah Salsabila Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, Jalan Rawamangun Muka, Jakarta 13220, Indonesia
  • Fabian Glorious Kenaya Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta Timur 13220, Indonesia
  • Muhammad Fathar Aulia The Center for Science Innovation, Jakarta Timur 13120, Indonesia
  • Muhammad Athariq The Center for Science Innovation, Jakarta Timur 13120, Indonesia

DOI:

https://doi.org/10.56425/cma.v3i3.84

Keywords:

electrodeposition, ethanol electrooxidation,, electrocatalyst

Abstract

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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Published

2024-10-31

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