Abstract
To develop green and renewable energy, subtle design and synthesis of non-precious metal catalysts with low-price, high-efficiency, and robust stability are of paramount significance for oxygen reduction reaction (ORR). In this study, we synthesized graphitic carbon wrapped Co on Zn, Co, N-codoped 3D tremella-like carbon with abundant nanocages (G-Co/Zn, Co, N-TCs) by one-step coordination pyrolysis in the presence of azacytosine. The pyrolysis temperature and Zn/Co feeding ratio were carefully investigated. Integrating the unique structure and synergistic effect of the bimetals, the resulting G-Co/Zn, Co, N-TCs exhibited remarkable ORR activity (Eonset = 0.99 V; E1/2 = 0.88 V vs. RHE), and excellent stability (only 13 mV negative shift of E1/2 after scanning 2000 cycles), outperforming the control groups and commercial Pt/C under alkaline condition. This research presents some precious viewpoints for fabricating advanced N- and transition metal-dual doped carbon electrocatalysts in energy conversion and storage correlated devices.
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 callDisclaimer: 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.
