Electrochemical proton insertion in Mn2.2Co0.27O4 from aqueous borate solution

Authors
Bach, S Belair, S Cachet-Vivier, C Pereira-Ramos, JP Sanchez, L Lavela, P Tirado, JL
Citation
S. Bach et al., Electrochemical proton insertion in Mn2.2Co0.27O4 from aqueous borate solution, ELECTR ACT, 45(6), 1999, pp. 931-934
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ELECTROCHIMICA ACTA
ISSN journal
00134686 → ACNP
Volume
45
Issue
6
Year of publication
1999
Pages
931 - 934
Database
ISI
SICI code
0013-4686(1999)45:6<931:EPIIMF>2.0.ZU;2-6
Abstract
The non-stoichiometric spinel Mn-Co oxide Mn2.2Co0.27O4 presents attractive properties as a rechargeable cathode in a berate buffer electrolyte (pH 9. 5). The large number of cationic vacancies combined with the high oxidation state of manganese allow a stable capacity of 115 Ah kg(-1) available near 0.1 V versus Hg/HgO reference electrode. The electrochemical performance o f the cathode is presented and compared with that observed in conventional KOH medium. (C) 1999 Elsevier Science Ltd. All rights reserved.