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March 21, 2026Cleaner Engineering and TechnologyOpen Access

Performance evaluation of gold as anodic catalyst for the operation of sulphur depolarized electrolysis

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Authors

LELukas F. Roessler EscuderoGSGlen J. SmalesVHV. Hacker

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Overview

Evaluation finds gold enhances electrolysis efficiency in sulfur systems, indicating potential for sustainable hydrogen production.

Key Points

  • The research aims to evaluate gold as an anodic catalyst in sulphur depolarized electrolysis to enhance performance compared to platinum.
  • In-situ testing under a single cell configuration
  • Ex-situ characterization using SEM/EDX imaging and SAXS analysis
  • Assessment of temperature effects and alternative catalyst loadings
  • Comparative analysis of gold and platinum catalysts
  • Temperature increase from 20 °C to 80 °C improved performance from 0.83 to 2.40 A mgPt -1
  • Gold catalyst achieved >6.7 A mgMetal and 0.5 A cm -2 at 1.2 V
  • Asymmetric loading reached 540 mA cm -2 at 1.2 V
  • Platinum usage was reduced by 50% while improving performance

Cite This Study

Escudero et al. (2026) studied this question.

synapsesocial.com/papers/69be36d46e48c4981c67602ehttps://doi.org/10.1016/j.clet.2026.101201
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