期刊
ACS APPLIED NANO MATERIALS
卷 1, 期 10, 页码 5763-5773出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.8b01430
关键词
carbon nano-onion; oxygen reduction reaction; boron and nitrogen doping; electrocatalysis; fuel cell
资金
- Istituto Italiano di Tecnologia
Herein, we present the production of dual-atom (B and N)-codoped carbon nano-onions (BN-CNOs) by a standard annealing method. The proposed codoping approach is efficient to introduce both heteroatoms in the graphitic skeleton, as revealed by several characterization techniques, and suitable for a low-cost mass production of C-based catalysts. The activity of the CNO-based electrocatalysts toward oxygen reduction reaction has been investigated in alkaline media, showing comparable catalytic performance, higher long-term stability (retaining 98.7% of the initial current over 3 h of testing), and excellent immunity toward methanol crossover compared to the standard Pt/C-based catalysts. Our findings confirm that B/N-codoped CNOs arepromising candidates to efficiently catalyze the oxygen reduction in energy devices.
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