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July 11, 2026ACS Applied Energy MaterialsOpen Access

Electrochemical CO 2 -to-Formate Conversion on Scalable Cu 3 Sn Gas Diffusion Electrodes via an OCHO-Mediated Pathway

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Authors

SBSankeerthana BellamkondaRoyal Botanic Gardens, KewSRShahid RasulNorthumbria UniversityMMMohamed MamloukThe Faraday Institution

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Overview

Randomized trial evaluates electrochemical CO2 reduction efficiency in alloy-based gas diffusion electrodes, suggesting effective carbon valorization.

Key Points

  • The aim is to enhance CO2-to-formate conversion efficiency using Cu3Sn gas diffusion electrodes.
  • Synthesized Cu3Sn gas diffusion electrodes via scalable electrochemical spontaneous deposition method.
  • Conducted half-cell testing to evaluate Faradaic efficiency and suppress side reactions.
  • Utilized in situ Raman spectroscopy for mechanistic analysis.
  • Achieved a Faradaic efficiency of ∼90% for HCOO− at −0.85 V vs RHE during half-cell testing.
  • Full-cell evaluation showed ∼82% formate Faradaic efficiency at 180 mA cm−2 with 73% energy efficiency.
  • Retained formate Faradaic efficiency above 76% over 60 hours of continuous operation.

Cite This Study

Bellamkonda et al. (2026) studied this question.

synapsesocial.com/papers/6a51dd5ac18d7f28ca4ffeb4https://doi.org/10.1021/acsaem.6c00966
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