Polydopamine-coated bimetallic ZIF derivatives as an air cathode for acidic Zn–air batteries with super-high potential†
Abstract
NC@Co-HPNC is synthesized, which exhibits a superior ORR/OER performance in acid/base solution. Hence, acid–base dual-electrolyte-based Zn–air batteries using NC@Co-HPNC reveal a long cycling life and a super-high voltage (2.1 V).