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Abstract <p>Methods for producing metal-carbon nanocomposites based on a porous carbon carrier and dispersed bimetallic Fe–Co nanoparticles are proposed. The features of the formation of metal nanoparticles depending on the pretreatment temperature (150 and 600°C) and the amount of alkali being used as an activating agent are studied. It is shown that alkaline activation of precursors pre-carbonized at 150°C leads to the formation of materials with a specific surface area of 973–1236 m<sup>2</sup>/g and highly aggregated metal nanoparticles in a carbon matrix. In contrast, composites obtained by alkaline activation of materials been already formed at 600°C have a uniform distribution of nanoparticles and a specific surface area of 456–648 m<sup>2</sup>/g.</p>

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Effect of Pretreatment Temperature and Activating Agent Concentration on Structural Characteristics of Porous Metal-Carbon Nanocomposites with Fe–Co Bimetallic Nanoparticles

  • 期刊论文

  • 发表日期：

    2026年5月18日

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  • A. A. Vasilev,
  • E. L. Dzidziguri,
  • D. V. Bindiug,
  • D. G. Muratov,
  • G. P. Karpacheva

摘要

Abstract

Methods for producing metal-carbon nanocomposites based on a porous carbon carrier and dispersed bimetallic Fe–Co nanoparticles are proposed. The features of the formation of metal nanoparticles depending on the pretreatment temperature (150 and 600°C) and the amount of alkali being used as an activating agent are studied. It is shown that alkaline activation of precursors pre-carbonized at 150°C leads to the formation of materials with a specific surface area of 973–1236 m2/g and highly aggregated metal nanoparticles in a carbon matrix. In contrast, composites obtained by alkaline activation of materials been already formed at 600°C have a uniform distribution of nanoparticles and a specific surface area of 456–648 m2/g.