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AC-assisted deposition of aggregate free silica films with vertical pore structure

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Moehl, Gilles E., Nasir, Tauqir, Han, Yisong, Noori, Yasir J., Huang, Ruomeng, Beanland, Richard, Bartlett, Philip N. and Hector, Andrew L. (2022) AC-assisted deposition of aggregate free silica films with vertical pore structure. Nanoscale, 14 (14). pp. 5404-5411. doi:10.1039/d1nr08253a ISSN 2040-3372.

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Official URL: https://doi.org/10.1039/D1NR08253A

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Abstract

Silica thin films with vertical nanopores are useful to control access to electrode surfaces and may act as templates for growth of nanomaterials. The most effective method to produce these films, electrochemically assisted surfactant assembly, also produces aggregates of silica particles. This paper shows that growth with an AC signal superimposed onto the potential avoids the aggregates and only very small numbers of single particles are found. This finding is linked to better control of the diffusion field of hydroxide ions that are responsible for particle growth. The resultant films are smooth, with very well-ordered hexagonal pore structures.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Thin films, Nanoscience, Silicon, Nanotechnology
Journal or Publication Title: Nanoscale
Publisher: Royal Society of Chemistry (RSC)
ISSN: 2040-3372
Official Date: 14 April 2022
Dates:
DateEvent
14 April 2022Published
16 March 2022Available
15 March 2022Accepted
Volume: 14
Number: 14
Page Range: pp. 5404-5411
DOI: 10.1039/d1nr08253a
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): ** Article version: VoR ** From Crossref journal articles via Jisc Publications Router ** Licence for VoR version of this article starting on 16-03-2022: http://creativecommons.org/licenses/by/3.0/
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 29 April 2022
Date of first compliant Open Access: 29 April 2022
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/N035437/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/K00509X/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/K009877/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
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