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Charge transfer from perovskite oxide nanosheets to N-doped carbon nanotubes to promote enhanced performance of a zinc–air battery

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Abstract

Room temperature engineered spatially connected p-type double perovskite oxide (BaPrMn1.75Co0.25O5+δ, BPMC) nanosheets (NSs) with n-type nitrogen-doped multi-walled carbon nanotubes (NCNTs) show significant enhancement in bifunctional oxygen electrocatalytic activity. The optimization of the donor level by charge transfer from the perovskite to NCNTs is demonstrated to be a prodigious approach to facilitate redox oxygen activation. A proof-of-concept rechargeable zinc–air battery (ZAB) with BPMC containing a 10 wt% NCNT (BPMC/NCNT-10) cathode demonstrates the highest specific discharge capacity of 789.2 mA h gZn−1 and cyclic stability for 85 h at a current density of 5 mA cm−2.

Graphical abstract: Charge transfer from perovskite oxide nanosheets to N-doped carbon nanotubes to promote enhanced performance of a zinc–air battery

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Article information


Submitted
01 May 2020
Accepted
09 Jun 2020
First published
09 Jun 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Charge transfer from perovskite oxide nanosheets to N-doped carbon nanotubes to promote enhanced performance of a zinc–air battery

R. Majee, S. Mondal and S. Bhattacharyya, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC03154B

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