Charge transfer from perovskite oxide nanosheets to N-doped carbon nanotubes to promote enhanced performance of a zinc–air battery. Issue 59 (23rd June 2020)

• Record Type: Journal Article
• Authors: Majee, Rahul; Mondal, Surajit; Bhattacharyya, Sayan
• Is Part Of: Chemical communications. Volume 56:Issue 59(2020)
• Page Start: 8277
• Page End: 8280
• Publication Date: 2020-06-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc03154b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Charge transfer from spatially connected double perovskite oxide nanosheets to N-doped carbon nanotubes facilitates oxygen activation in a stable zinc–air battery. Abstract : Room temperature engineered spatially connected p-type double perovskite oxide (BaPrMn1.75 Co0.25 O5+ 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 .