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<p>A triple-electrode technique was incorporated into the modified double hot thermocouple technique to analyze electrochemical reactions in molten slags. CaO–Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> and CaO–SiO<sub>2</sub> slags showed nonlinear voltage–current behavior depending on slag composition and temperature. Half-cell potential measurements against a Pt pseudo-reference electrode enabled separate evaluation of anodic and cathodic responses and estimation of apparent reaction onset potentials. The technique provides an experimental basis for analyzing polarization behavior and reaction onset in molten slags under high-temperature conditions.</p>

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Electrode-Specific Analysis of Electrochemical Reaction Onset in Molten Slags Using a Triple-Electrode Modified Double Hot Thermocouple Technique

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年8月4日

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  • Masahiro Nakata,
  • Alan W. Cramb,
  • Takayuki Iwama,
  • Shungo Natsui,
  • Shigeru Ueda

摘要

A triple-electrode technique was incorporated into the modified double hot thermocouple technique to analyze electrochemical reactions in molten slags. CaO–Al2O3–SiO2 and CaO–SiO2 slags showed nonlinear voltage–current behavior depending on slag composition and temperature. Half-cell potential measurements against a Pt pseudo-reference electrode enabled separate evaluation of anodic and cathodic responses and estimation of apparent reaction onset potentials. The technique provides an experimental basis for analyzing polarization behavior and reaction onset in molten slags under high-temperature conditions.