Preparation of Hierarchical Porous Fe/N Codoped Carbon Nanosheets as Oxygen Reduction Reaction Electrocatalysts for the Zinc-Air Battery DOI

Yanjing Lin,

Yaru Li, Jiahao Liu

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(47), P. 20553 - 20562

Published: Nov. 13, 2024

In recent years, Fe–N–C materials have been considered as feasible substitutes for platinum-based catalysts to enhance the oxygen reduction reaction (ORR). However, still specific problems, including poor inherent activity, restricted availability of active sites, and inferior stability. This work presents a simple efficient method synthesizing Fe/N codoped hierarchical porous carbon nanosheets using one-step pyrolysis. The optimized 900 catalyst exhibits excellent ORR performance with an onset potential 0.958 V half-potentials 0.885 in alkaline medium, surpassing those commercial Pt/C catalyst. addition, optimal demonstrated improved stability great resistance methanol. Furthermore, zinc-air battery constructed from shows remarkable power density 163.65 mW cm–2 capacity 807.80 mA h gZn–1. electrochemical cycle were proven exceed 400 at current 5 cm–2. study offers valuable insights development highly stable clean energy field.

Language: Английский

Donor-Acceptor Covalent Organic Frameworks Propel Oxygen Reduction Reaction with Push-Pull Dynamics DOI
Greesh Kumar, Sabuj Kanti Das,

Thakur Rochak Kumar Rana

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(41), P. 28085 - 28094

Published: Jan. 1, 2024

Extended π-conjugated COFs containing imine linked active sites have been synthesised and found to accelerate the ORR. The mechanism of ORR reaction has explored via in situ FTIR push–pull interaction alkaline media.

Language: Английский

Citations

0
Preparation of Hierarchical Porous Fe/N Codoped Carbon Nanosheets as Oxygen Reduction Reaction Electrocatalysts for the Zinc-Air Battery DOI

Yanjing Lin,

Yaru Li, Jiahao Liu

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(47), P. 20553 - 20562

Published: Nov. 13, 2024

In recent years, Fe–N–C materials have been considered as feasible substitutes for platinum-based catalysts to enhance the oxygen reduction reaction (ORR). However, still specific problems, including poor inherent activity, restricted availability of active sites, and inferior stability. This work presents a simple efficient method synthesizing Fe/N codoped hierarchical porous carbon nanosheets using one-step pyrolysis. The optimized 900 catalyst exhibits excellent ORR performance with an onset potential 0.958 V half-potentials 0.885 in alkaline medium, surpassing those commercial Pt/C catalyst. addition, optimal demonstrated improved stability great resistance methanol. Furthermore, zinc-air battery constructed from shows remarkable power density 163.65 mW cm–2 capacity 807.80 mA h gZn–1. electrochemical cycle were proven exceed 400 at current 5 cm–2. study offers valuable insights development highly stable clean energy field.

Language: Английский

Citations

0