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Abstract <p>Catalysts for an environmentally friendly method for hydrogen production (free from carbon oxide emissions) based on decomposition of methane were proposed. The catalysts represented iron-containing systems supported on a carbon material (biochar). The active component (Fe) was deposited by the incipient wetness impregnation method from a solution of iron(III) nitrate nonahydrate. The produced catalytic systems were tested in the decomposition of methane and studied by physicochemical methods of analysis (Raman spectroscopy, powder X-ray diffraction, transmission electron microscopy, elemental analysis, and atomic absorption analysis). The catalysts were found to have a graphite-like carbon structure accommodating uniformly distributed iron nanoparticles. The catalytic activity of the obtained systems in the temperature range of 500–850°C was determined. The maximum conversion of methane (12.2%) was observed at 700°C in the presence of iron-containing biochar synthesized at 250°C. The carbon product formed during the experiment consisted of carbon nanotubes and onion-shaped carbon.</p>

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Iron and Biochar-Based Catalysts (Fe/C) for Hydrogen Production by Methane Decomposition

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • V. V. Lubavina,
  • A. E. Sotnikova,
  • K. O. Krysanova,
  • M. I. Ivantsov,
  • M. V. Kulikova

摘要

Abstract

Catalysts for an environmentally friendly method for hydrogen production (free from carbon oxide emissions) based on decomposition of methane were proposed. The catalysts represented iron-containing systems supported on a carbon material (biochar). The active component (Fe) was deposited by the incipient wetness impregnation method from a solution of iron(III) nitrate nonahydrate. The produced catalytic systems were tested in the decomposition of methane and studied by physicochemical methods of analysis (Raman spectroscopy, powder X-ray diffraction, transmission electron microscopy, elemental analysis, and atomic absorption analysis). The catalysts were found to have a graphite-like carbon structure accommodating uniformly distributed iron nanoparticles. The catalytic activity of the obtained systems in the temperature range of 500–850°C was determined. The maximum conversion of methane (12.2%) was observed at 700°C in the presence of iron-containing biochar synthesized at 250°C. The carbon product formed during the experiment consisted of carbon nanotubes and onion-shaped carbon.