In:
ECS Meeting Abstracts, The Electrochemical Society, Vol. MA2020-01, No. 38 ( 2020-05-01), p. 1624-1624
Abstract:
In this work, a microfluidic Zin-Air cell operated with a flow-through concept was constructed electrodepositing zinc on carbon paper electrodes by chronoamperometry. Additionally, chemically obtained α-MnO 2 and Mn 3 O 4 spinel were used as cathodes, and the cell performance was also compared with benchmarked Pt/C. Zinc electrodeposition time, flow rate, KOH electrolyte concentration and cathodic material were the variables herein evaluated. Zinc at 60 min was the best anodic material, and the maximum cell performance (~450 mW cm -2 ) was achieved at 4 M KOH and 3 mL h -1 . α-MnO 2 and Mn 3 O 4 spinel presented half-wave overpotentials of 92 and 127 mV in contrast with benchmarked Pt/C, and during cell evaluation, these materials displayed power densities of 308 and 317 mW cm -2 , respectively.
Type of Medium:
Online Resource
ISSN:
2151-2043
DOI:
10.1149/MA2020-01381624mtgabs
Language:
Unknown
Publisher:
The Electrochemical Society
Publication Date:
2020
detail.hit.zdb_id:
2438749-6
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