Engineering Mn-N sites on nitrogen-doped carbon spheres as efficient bifunctional electrocatalysts for zinc-air batteries
Jiangsu University of Science and Technology · Anhui University of Science and Technology
Abstract
The Mn/N co-doped carbon spheres (Mn@NCS) were synthesized via a dual-template strategy by employing polydopamine (PDA) spheres and Mn-doped ZIF-8 as precursors, which enables precise anchoring of highly dispersed Mn-N x sites onto the surface of NCS. The introduction of Mn atoms markedly boosts both the catalytic activity of electrochemical oxygen reduction reaction (ORR) and long-term durability, primarily through the synergistic couple between high specific surface area of NCS and hierarchical pore architecture generated by Zn volatilization during pyrolysis. This unique structural configuration effectively optimizes the active-site dispersion and mass-transport efficiency. Electrocatalytic evaluations show…
Citation impact
- FWCI
- 42.32
- Percentile
- 100%
- References
- 23
Authors
7- ZZZijian Zhao
Jiangsu University of Science and Technology
- JCJunkang Chen
Jiangsu University of Science and Technology
- HZHu ZhouCorresponding
Jiangsu University of Science and Technology
- BHBiao Hu
Anhui University of Science and Technology
- CMChunfeng MengCorresponding
Jiangsu University of Science and Technology
Topics & keywords
- Bifunctional
- Battery (electricity)
- Carbon fibers
- Electrochemistry
- Catalysis
- Electrode
- Dispersion (optics)
- SPHERES