Scholarlink

Abstract <p>A new catalytic system based on manganese phthalocyanine and nitrogen-doped carbon nanotubes (CNTNs) was synthesized and studied as a platinum-free electrocatalyst in the oxygen reduction reaction (ORR) in an alkaline medium. The synthesized MnPc/CNTN electrocatalyst showed high activity in the ORR both under model conditions using a rotating disk electrode and as part of an alkaline fuel cell (AFC) with a membrane-electrode assembly (MEA) with an anion-exchange membrane. Results obtained were compared with a commercial monoplatinum catalyst’s characteristics under the same conditions. The maximum power density values were 30 and 51 mW/cm<sup>2</sup> for an MEA with 60Pt/C and MnPc/CNTN, respectively. It has been shown that the MnPc/CNTN system under the operating conditions of an AFC with an MEA is characterized by a higher tolerance to toxic agents (including the ionomer) than the platinum catalyst, which is an important advantage of an MEA based on MnPc/CNTs.</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

A Catalyst Based on a Macroheterocyclic Mn Compound and Modified CNTs for an Alkaline Hydrogen–Air Fuel Cell

  • 期刊论文

  • 发表日期：

    2025年6月1日

查看全文
  • A. V. Kuzov,
  • V. V. Emets,
  • M. V. Radina,
  • O. V. Korchagin,
  • V. N. Andreev

摘要

Abstract

A new catalytic system based on manganese phthalocyanine and nitrogen-doped carbon nanotubes (CNTNs) was synthesized and studied as a platinum-free electrocatalyst in the oxygen reduction reaction (ORR) in an alkaline medium. The synthesized MnPc/CNTN electrocatalyst showed high activity in the ORR both under model conditions using a rotating disk electrode and as part of an alkaline fuel cell (AFC) with a membrane-electrode assembly (MEA) with an anion-exchange membrane. Results obtained were compared with a commercial monoplatinum catalyst’s characteristics under the same conditions. The maximum power density values were 30 and 51 mW/cm2 for an MEA with 60Pt/C and MnPc/CNTN, respectively. It has been shown that the MnPc/CNTN system under the operating conditions of an AFC with an MEA is characterized by a higher tolerance to toxic agents (including the ionomer) than the platinum catalyst, which is an important advantage of an MEA based on MnPc/CNTs.