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May 14, 2026The Journal of Physical Chemistry C

Composite Sn–Fe Oxide as a Compatible OER Electrocatalyst for Electrochemical Alkaline Water Electrolysis

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Authors

AVAbhijai VelluvaDCDarren Sebastian ChristiKSKaliaperumal Selvaraj

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Overview

Randomized trial demonstrates improved oxygen evolution reaction in alkaline water electrolysis, suggesting a promising alternative for green hydrogen production.

Key Points

  • The study aims to develop a highly active non-noble metal electrocatalyst for the oxygen evolution reaction during alkaline water electrolysis.
  • Synthesis of Sn-doped FeOx composite powder using a single-step hydrothermal method.
  • Evaluation of OER performance measured by overpotential and Tafel slope in 1 M KOH.
  • Durability testing at higher current density for assessing activity retention.
  • SnFeOx exhibited a low overpotential (η100) of 288 mV at 100 mA cm–2 with a Tafel slope of 35 mV dec–1.
  • Demonstrated >99% activity retention after 50 hours during durability tests at 100 mA cm–2.
  • Showed superior performance in full-water splitting compared to standard Pt/C and Ru/C configurations.

Cite This Study

Velluva et al. (2026) studied this question.

synapsesocial.com/papers/6a05659da550a87e60a1df53https://doi.org/10.1021/acs.jpcc.6c01775
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