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Affiliation of Author(s):材料科学与技术学院

Journal:ACS Sustainable Chem. Eng.

Abstract:With the advantages of low cost, non-pollution, and strong controllability over composition, morphology, nanostructures, as well as surface characters, carbon-based nanomaterials are regarded as ideal substitutes of traditional platinum-based catalysts for oxygen reduction reaction (ORR) electrocatalysis in ORR-involved devices. Herein, an in situ ZnO activation-coupled electrospinning strategy was employed to facilely construct nitrogen-doped porous carbon nanofibers (NPCNF) for flexible Zn-air batteries. In situ formation and thermal removal of ZnO make a critical difference in construction of micro/meso-hierarchically porous structures as well as highly active N-doped sites, therefore generating self-standing carbon nanofibers with high nitrogen doping content as well as specific Brunauer-Emmett-Teller of 501 m2/g and 5.6 at. %. As a result, the prepared NPCNF as a self-standing electrode delivers an excellent performance both in alkaline liquid-state and quasi-solid-state Zn-air batteries, giving the possibility of applications in flexible devices. Copyright © 2019 American Chemical Society.

Translation or Not:no

Date of Publication:2019-01-01

Co-author:Yan, Jiacheng,Tang, Zeming,Li, Binxin,Bi, Da,lyz

Correspondence Author:Lai Qingxue