Scanning electrochemical microscopy at the nanometer level

This review describes how one can perform nanometer (nm)-scale SECM experiments through advances in tip fabrication and positioning and instrumentation design. Basic SECM methodology including instrumentation and feedback and generation/collection modes are discussed. Aspects of nanoscale SECM inclu...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2018, Vol.54 (16), p.1934-1947
Hauptverfasser: Kai, Tianhan, Zoski, Cynthia G, Bard, Allen J
Format: Artikel
Sprache:eng
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Zusammenfassung:This review describes how one can perform nanometer (nm)-scale SECM experiments through advances in tip fabrication and positioning and instrumentation design. Basic SECM methodology including instrumentation and feedback and generation/collection modes are discussed. Aspects of nanoscale SECM including fabrication of nm-sized electrodes and nano SECM instrumentation are also described. State of the art applications related to nanogaps ( i.e. , rapid homogeneous reactions and short-lived intermediates; heterogeneous electron transfer kinetics; nanoparticles (NPs) and clusters) and nanoscale imaging ( e.g. , single NPs, single biological samples, combined methods) are described. Future possibilities and prospects are suggested that might lead to even better resolution, thus introducing SECM electrochemical imaging to the single atom level. Chemical and electrochemical reactions at high temporal and spatial resolution can be studied using nanoscale SECM.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc09777h