Scholarlink

<p>We present a multimodal methodology integrating time-resolved inductively coupled plasma mass spectrometry (ICP-MS) with operando reflected microscopy to characterise electrochemical surface processes. Enabled by a custom scanning flow cell, this approach allows simultaneous high-resolution optical inspection under controlled polarisation and continuous electrolyte flow. While ICP-MS and reflected microscopy have each advanced the study of electrocatalysis and corrosion, their direct combination correlates spatially resolved optical changes with quantitative, time-dependent dissolution kinetics. To illustrate its potential, we examined copper electrodes in dilute NaCl solutions with and without 2-mercaptobenzothiazole (2-MBT), a well-established corrosion inhibitor. The joint analysis distinguished mechanistic regimes of cathodic and oxide dissolution, uniform corrosion, passivation, and localised breakdown by linking morphology and optical features with dissolution profiles. Beyond this case, the methodology provides a versatile platform for <i>operando</i> electrochemical interface characterisation, bridging dynamic surface phenomena with kinetic reactivity.</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

Development of spectroelectrochemical microscopy for the real-time study of electrochemical surface processes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月27日

查看全文
  • Matteo Olgiati,
  • Markus Valtiner

摘要

We present a multimodal methodology integrating time-resolved inductively coupled plasma mass spectrometry (ICP-MS) with operando reflected microscopy to characterise electrochemical surface processes. Enabled by a custom scanning flow cell, this approach allows simultaneous high-resolution optical inspection under controlled polarisation and continuous electrolyte flow. While ICP-MS and reflected microscopy have each advanced the study of electrocatalysis and corrosion, their direct combination correlates spatially resolved optical changes with quantitative, time-dependent dissolution kinetics. To illustrate its potential, we examined copper electrodes in dilute NaCl solutions with and without 2-mercaptobenzothiazole (2-MBT), a well-established corrosion inhibitor. The joint analysis distinguished mechanistic regimes of cathodic and oxide dissolution, uniform corrosion, passivation, and localised breakdown by linking morphology and optical features with dissolution profiles. Beyond this case, the methodology provides a versatile platform for operando electrochemical interface characterisation, bridging dynamic surface phenomena with kinetic reactivity.