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High-throughput correlative electrochemistry−microscopy at a transmission electron microscopy (TEM) grid electrode
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Ornelas, Isabel, Unwin, Patrick R. and Bentley, Cameron Luke (2019) High-throughput correlative electrochemistry−microscopy at a transmission electron microscopy (TEM) grid electrode. Analytical Chemistry, 91 (23). pp. 14854-14859. doi:10.1021/acs.analchem.9b04028 ISSN 0003-2700.
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WRAP-high-throughput-correlative-electrochemistry-microscopy-electron-Bentley-2019.pdf - Accepted Version - Requires a PDF viewer. Download (1612Kb) | Preview |
Official URL: http://dx.doi.org/10.1021/acs.analchem.9b04028
Abstract
As part of the revolution in electrochemical nanoscience, there is growing interest in using electrochemistry to create nanostructured materials, and to assess properties at the nanoscale. Herein, we present a platform that combines scanning electrochemical cell microscopy with ex-situ scanning transmission electron microscopy, to allow the ready creation of an array of nanostructures coupled with atomic-scale analysis. As an illustrative example, we explore the electrodeposition of Pt at carbon-coated transmission electron microscopy (TEM) grid supports, where in a single high-throughput experiment it is shown that Pt nanoparticle (PtNP) density increases and size polydispersity decreases with increasing overpotential (i.e., driving force). Furthermore, the coexistence of a range of nanostructures − from single atoms to aggregates of crystalline PtNPs − during the early stages of electrochemical nucleation and growth supports a non-classical aggregative growth mechanism. Beyond this exemplary system, the presented correlative electrochemistry−microscopy approach is generally applicable to solve the ubiquitous structure-function problems in electrochemical science and beyond, positioning it as a powerful plat-form for the rational design of functional nanomaterials.
| Item Type: | Journal Article | ||||||||||||||||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry Q Science > QR Microbiology T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Electrochemistry , Nanochemistry, Nanostructured materials, Electron microscopy | ||||||||||||||||||
| Journal or Publication Title: | Analytical Chemistry | ||||||||||||||||||
| Publisher: | American Chemical Society | ||||||||||||||||||
| ISSN: | 0003-2700 | ||||||||||||||||||
| Official Date: | 3 December 2019 | ||||||||||||||||||
| Dates: |
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| Volume: | 91 | ||||||||||||||||||
| Number: | 23 | ||||||||||||||||||
| Page Range: | pp. 14854-14859 | ||||||||||||||||||
| DOI: | 10.1021/acs.analchem.9b04028 | ||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||
| Reuse Statement (publisher, data, author rights): | “This document is the Accepted Manuscript version of a Published Work that appeared in final form in Analytical Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].” | ||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
| Date of first compliant deposit: | 6 November 2019 | ||||||||||||||||||
| Date of first compliant Open Access: | 1 November 2020 | ||||||||||||||||||
| RIOXX Funder/Project Grant: |
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