Scholarlink

Abstract <p>The use of activated charcoal in electrodes for supercapacitors seems very promising. When activated charcoal is treated with aqueous hydrogen peroxide solution, oxygen-bearing functional groups are formed—primarily carbonyl groups. (This process is known as functionalization.) That results in approximately 40% increase in the electrical capacitance. If filler—2 wt % gold nanoparticles—is introduced in the resulting material, its pore structure is not blocked. By this means, the electrical capacitance may be increased by a further ~10%. The electrical capacitance of this nanostructured electrode material proves very stable (~86%) in repeated cycling of the potential (up to 500 cycles).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Electrode Nanocomposites of Supercapacitors Based on Functionalized Activated Charcoal Filled with Gold Nanoparticles

  • 期刊论文

  • 发表日期：

    2025年3月1日

查看全文
  • G. Y. Simenyuk,
  • N. S. Zakharov,
  • A. N. Popova,
  • V. M. Pugachev,
  • V. G. Dodonov,
  • V. I. Krasheninin

摘要

Abstract

The use of activated charcoal in electrodes for supercapacitors seems very promising. When activated charcoal is treated with aqueous hydrogen peroxide solution, oxygen-bearing functional groups are formed—primarily carbonyl groups. (This process is known as functionalization.) That results in approximately 40% increase in the electrical capacitance. If filler—2 wt % gold nanoparticles—is introduced in the resulting material, its pore structure is not blocked. By this means, the electrical capacitance may be increased by a further ~10%. The electrical capacitance of this nanostructured electrode material proves very stable (~86%) in repeated cycling of the potential (up to 500 cycles).