Scanning Electrochemical Cell Microscopy: A Versatile Technique for Nanoscale Electrochemistry and Functional Imaging
Scanning Electrochemical Cell Microscopy: A Versatile Technique for Nanoscale Electrochemistry and Functional Imaging
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DOI：
10.1146/annurev-anchem-062012-092650
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发表时间：
2013-01-01
期刊：
影响因子：
--
通讯作者：
Unwin, Patrick R.
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文献类型：
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作者：
Ebejer, Neil;Gueell, Aleix G.;Unwin, Patrick R.
扫描电化学电池显微镜（SECCM）是一种新的基于移液器的成像技术，旨在允许同时进行表面和界面的电化学，电导和形貌可视化。SECCM在双管（theta）移液器的末端使用微小的弯月面或液滴，用于高分辨率功能成像和纳米级电化学测量。在这里，我们介绍这种技术，并提供其原理，仪器和理论的概述。我们讨论了SECCM在解决复杂的结构-活性问题的能力，并通过参考关键的示例系统，包括石墨烯，石墨，碳纳米管，纳米颗粒和导电金刚石，提供了相当多的新信息电极过程。SECCM在其短暂的存在期间能够回答的许多长期存在的问题表明其有潜力成为电化学和界面科学的主要技术。
Scanning electrochemical cell microscopy (SECCM) is a new pipette-based imaging technique purposely designed to allow simultaneous electrochemical, conductance, and topographical visualization of surfaces and interfaces. SECCM uses a tiny meniscus or droplet, at the end of a double-barreled (theta) pipette, for high-resolution functional imaging and nanoscale electrochemical measurements. Here we introduce this technique and provide an overview of its principles, instrumentation, and theory. We discuss the power of SECCM in resolving complex structure-activity problems and provide considerable new information on electrode processes by referring to key example systems, including graphene, graphite, carbon nanotubes, nanoparticles, and conducting diamond. The many longstanding questions that SECCM has been able to answer during its short existence demonstrate its potential to become a major technique in electrochemistry and interfacial science.