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Electrodeposition of Si and Sn-based amorphous films for high energy novel electrode materials

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Gallanti, Serena, Loveridge, Melanie and Bhagat, Rohit (2017) Electrodeposition of Si and Sn-based amorphous films for high energy novel electrode materials. MRS Advances, 2 (54). pp. 3249-3254. doi:10.1557/adv.2017.390 ISSN 2059-8521.

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Official URL: http://dx.doi.org/10.1557/adv.2017.390

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Abstract

In this work we report the electrodeposition parameters of Sn-graphene films in aqueous solutions and silicon films in propylene carbonate. The galvanostatic electrodeposition of tin-graphene films from a sulfate-based acidic solution on copper substrates has been studied evaluating the effect of stirring on the morphology and the electrochemical performance. SEM analysis of films deposited galvanostatically at -10 mA.cm−2 for 20 minutes at 25 °C reveals that electrodeposition is suitable to generate continuous and homogeneous films with thickness values in the micrometer range. XRD analysis shows many intermetallic Cu-Sn crystalline phases are formed, as opposed to a pure amorphous tin layer. So far, electrochemical characterization has only been performed over a short number of charge-discharge cycles. The galvanostatic electrodeposition of silicon from propylene carbonate in galvanostatic mode has been carried out, but is currently extremely challenging to obtain continuous and homogeneous films. The XRD characterization has suggested the possible presence of amorphous phases in the films deposited at -1.0 mA.cm-2 for 30 minutes at 25 °C.

Item Type: Journal Article
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title: MRS Advances
Publisher: Cambridge University Press
ISSN: 2059-8521
Official Date: 1 June 2017
Dates:
DateEvent
1 June 2017Published
25 May 2017Accepted
Volume: 2
Number: 54
Page Range: pp. 3249-3254
DOI: 10.1557/adv.2017.390
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): This article has been published in a revised form in MRS Advances http://doi.org/10.1557/adv.2017.390. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © Materials Research Society 2017
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 15 August 2019
Date of first compliant Open Access: 15 August 2019

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