Mesoscale morphological control of electrodeposited manganese dioxide films

Title: Mesoscale morphological control of electrodeposited manganese dioxide films
Creator: Gibson, Andrew J.; Burns, Robert C.; Dupont, Madeleine F.; Donne, Scott W.
Relation: Electrochimica Acta Vol. 170, p. 343-352
Publisher Link: http://dx.doi.org/10.1016/j.electacta.2015.04.036
Publisher: Elsevier
Resource Type: journal article
Date: 2015
Description: Multilayered films of hybrid manganese dioxide have been synthesised in an anodic pulse deposition study with the addition of phosphotungstic acid, H₃PW₁₂O₄₀ (PW) to an acidified MnSO₄ solution. These hybrid materials exhibit tuneable layered morphologies, which is not present in material synthesised in the absence of PW. Cyclic voltammetry analyses have been performed in situ on single pulse thin film depositions synthesised in the presence of varying concentrations of PW, where minor amounts of PW improves the cycle stability of the material, however larger concentrations lead to a degradation in material performance. In situ electrochemical analysis shows that the incorporated PW clusters do not affect material activity, however they do play a role in defining both meso- and micro-structure.
Subject: electrochemical capacitors; electrodeposition; manganese dioxide; polyoxometalates
Identifier: http://hdl.handle.net/1959.13/1339551
Identifier: uon:28282
Identifier: ISSN:0013-4686
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format