Abstract
To address the energy crisis, it is critical to pursuit economic, high-energy density and stable electrocatalysts for oxygen reduction reaction (ORR). Herein, N,P-codoped hollow mesoporous carbon spheres supported FeCo dual-single atoms (FeCo-N,P-HCS) are synthesized via one-step confinement pyrolysis of the mixed metal salts, hollow mesoporous carbon spheres and dicyandiamide. Impressively, the gained FeCo-N,P-HCS exhibited a positive onset potential (Eonset = 1.01 V) and half wave potential (E1/2 = 0.85 V) in a 0.1 M KOH electrolyte, revealing the superior ORR characteristics. Later on, the FeCo-N,P-HCS assembled Zn-air battery displayed an open circuit voltage of 1.491 V, a high power density of 140 mW cm−2 and great cyclic stability over the Pt/C + RuO2 based counterpart. This research affords some constructive insights for searching high-efficiency catalyst in relevant energy storage and conversion fields.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
