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Momotenko, Dmitry, Byers, Joshua C., McKelvey, Kim M. (Kim Martin), Kang, Minkyung and Unwin, Patrick R. (2015) High-speed electrochemical imaging. ACS Nano, 9 (9). pp. 8942-8952. doi:10.1021/acsnano.5b02792 ISSN 1936-0851.
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WRAP_1050272-ch-280915-fast_scanning_paper_final-1 (2).pdf - Accepted Version - Requires a PDF viewer. Download (1533Kb) | Preview |
Official URL: http://dx.doi.org/10.1021/acsnano.5b02792
Abstract
The design, development, and application of high-speed scanning electrochemical probe microscopy is reported. The approach allows the acquisition of a series of high-resolution images (typically 1000 pixels μm–2) at rates approaching 4 seconds per frame, while collecting up to 8000 image pixels per second, about 1000 times faster than typical imaging speeds used up to now. The focus is on scanning electrochemical cell microscopy (SECCM), but the principles and practicalities are applicable to many electrochemical imaging methods. The versatility of the high-speed scan concept is demonstrated at a variety of substrates, including imaging the electroactivity of a patterned self-assembled monolayer on gold, visualization of chemical reactions occurring at single wall carbon nanotubes, and probing nanoscale electrocatalysts for water splitting. These studies provide movies of spatial variations of electrochemical fluxes as a function of potential and a platform for the further development of high speed scanning with other electrochemical imaging techniques.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QD Chemistry | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
Library of Congress Subject Headings (LCSH): | Electrochemical apparatus, Microscopy, Carbon nanotubes, Image processing | ||||||||
Journal or Publication Title: | ACS Nano | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 1936-0851 | ||||||||
Official Date: | 12 August 2015 | ||||||||
Dates: |
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Volume: | 9 | ||||||||
Number: | 9 | ||||||||
Number of Pages: | 11 | ||||||||
Page Range: | pp. 8942-8952 | ||||||||
DOI: | 10.1021/acsnano.5b02792 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 31 December 2015 | ||||||||
Date of first compliant Open Access: | 12 August 2016 | ||||||||
Funder: | European Research Council (ERC), Marie Curie Intra-European Fellowship (IEF), Seventh Framework Programme (European Commission) (FP7) | ||||||||
Grant number: | ERC- 2009 AdG 247143-QUANTIF (ERC), 626158 FUNICIS (IEF), 329953 (FP7) |
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