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September 18, 2025Journal of The Electrochemical SocietyOpen Access

Carbon-Modified Bismuth Catalysts for CO2 Electrolysis at Elevated Temperature: Insights and Challenges

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Authors

ARAlana RossenMVMathias van der VeerNDNick Daems

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Overview

Investigation reveals carbon's role in maintaining catalyst selectivity and faradaic efficiency during CO2 reduction at elevated temperatures.

Key Points

  • Carbon-modified bismuth catalysts demonstrated improved stability during CO2 electrolysis at elevated temperatures.
  • Standard bismuth oxide nanoparticles lost 20% faradaic efficiency over 24 hours, while Bi@C maintained 75% selectivity with only a 10% drop.
  • The study utilized scanning electron microscopy to assess structural changes in catalysts after electrolysis.
  • Findings suggest that carbon plays a crucial role in supporting bismuth particles for sustained CO2 reduction performance.

Cite This Study

Rossen et al. (2025) studied this question.

synapsesocial.com/papers/68d461b631b076d99fa607fdhttps://doi.org/10.1149/1945-7111/ae087f
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