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Abstract <p>Using self-propagating high-temperature synthesis with exothermic thermite-type mixtures, CoAl/W<sub><i>x</i></sub>C and CoCuAl/W<sub><i>x</i></sub>C composites were obtained. Based on ground composites, catalysts with a metallic active phase were prepared by aluminum leaching and stabilization. Their physicochemical characteristics and catalytic properties in CO<sub>2</sub> hydrogenation and deep oxidation of CO and hydrocarbons were studied. The Co/W<sub><i>x</i></sub>C catalyst demonstrated 100% CO conversion at 250°C, and the maximum achieved propane conversion was 91% at 400°C. In the hydrogenation reaction, the maximum CO<sub>2</sub> conversion was reached at 350°C and amounted to 37%, while the methane yield fed passed CO<sub>2</sub> reached 32%.</p>

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Self-Propagating High-Temperature Synthesis of Co/WxC and CoCu/WxC Composites as Catalysts for CO2 Hydrogenation and Deep Oxidation of CO and Propane

  • 期刊论文

  • 发表日期：

    2026年2月24日

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  • Elena V. Pugacheva,
  • Sergey L. Silyakov,
  • Denis M. Ikornikov,
  • Vladimir I. Yukhvid,
  • Vyacheslav N. Borshch,
  • Mikhail I. Alymov

摘要

Abstract

Using self-propagating high-temperature synthesis with exothermic thermite-type mixtures, CoAl/WxC and CoCuAl/WxC composites were obtained. Based on ground composites, catalysts with a metallic active phase were prepared by aluminum leaching and stabilization. Their physicochemical characteristics and catalytic properties in CO2 hydrogenation and deep oxidation of CO and hydrocarbons were studied. The Co/WxC catalyst demonstrated 100% CO conversion at 250°C, and the maximum achieved propane conversion was 91% at 400°C. In the hydrogenation reaction, the maximum CO2 conversion was reached at 350°C and amounted to 37%, while the methane yield fed passed CO2 reached 32%.