Active mass analysis on thin films of electrodeposited manganese dioxide for electrochemical capacitors

Title: Active mass analysis on thin films of electrodeposited manganese dioxide for electrochemical capacitors
Creator: Cross, A. D.; Morel, A.; Drozd, M.; Olcomendy, I.; Hollenkamp, A. F.; Donne, S. W.
Relation: Electrochimica Acta Vol. 87, p. 133-139
Publisher Link: http://dx.doi.org/10.1016/j.electacta.2012.08.028
Publisher: Pergamon Press
Resource Type: journal article
Date: 2013
Description: For an accurate estimate of the specific capacitance it is imperative that the mass of active material be known. This is of particular importance for thin films of electrodeposited manganese dioxide, where the conventional determination of active material is not possible. Here we compare three indirect methods of mass analysis; namely, by integration of chronoamperometric i–t data, through the use of the electrochemical quartz crystal microbalance, and via manganese analysis of the deposit via ICP-OES. Each of these approaches was shown to be complicated by a range of experimental artefacts; however, it was concluded that the integration method was the preferred approach because of its focus only on the electroactive manganese species within the electrode.
Subject: manganese dioxide; supercapacitors; capacitance; EQCM; ICP-OES
Identifier: http://hdl.handle.net/1959.13/1307216
Identifier: uon:21368
Identifier: ISSN:0013-4686
Language: eng
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