A Pentagonal Defect-Rich Metal-Free Carbon Electrocatalyst for Boosting Acidic O 2 Reduction to H 2 O 2 Production
Huazhong University of Science and Technology · Xi'an Jiaotong University
Abstract
Metal-free carbon-based materials are considered one of the most promising two-electron oxygen reduction reaction (2e– ORR) electrocatalysts for the green synthesis of hydrogen peroxide (H2O2). However, most reported carbon electrocatalysts perform much more effectively in alkalis than in acids. Herein, by creatively using fullerene (C60) as the precursor subject to ammonia treatment, we designed and synthesized a pentagonal defect-rich nitrogen-doped carbon nanomaterial (PD/N–C). It achieves outstanding ORR activity, 2e– selectivity, and stability in acidic electrolytes, surpassing the benchmark PtHg4 alloy catalyst. Impressively, the flow cell based on the PD/N–C catalyst achieves nearly 100% Faraday…
Citation impact
- FWCI
- 19.26
- Percentile
- 100%
- References
- 62
Authors
6- CZChang Zhang
Huazhong University of Science and Technology
- WSWangqiang ShenCorresponding
Huazhong University of Science and Technology
- KGKun GuoCorresponding
Huazhong University of Science and Technology
- MXMo Xiong
Xi'an Jiaotong University
- JZJian ZhangCorresponding
Huazhong University of Science and Technology
Topics & keywords
- Chemistry
- Electrocatalyst
- Boosting (machine learning)
- Reduction (mathematics)
- Metal
- Carbon fibers
- Inorganic chemistry
- Physical chemistry