Journal
CATALYSTS
Volume 10, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/catal10080862
Keywords
ORR; boron doping; electrocatalyst; Pt; carbon black
Categories
Funding
- Nanjing Doinpower Technology Co., Ltd.
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A facile strategy is proposed to synthesize boron-doped ECP600 carbon black (B-ECP600), and the catalyst of Pt supported on boron-doped ECP600 (Pt/B-ECP600) shows smaller particle sizes and a higher electrochemical surface area (95.62 m(2)center dot gPt(-1)) and oxygen reduction reaction activity (0.286 A center dot mg(Pt)(-1)for mass activity; 0.299 mA center dot cm(-2)for area specific activity) compared to the catalyst of Pt supported on ECP600 (Pt/ECP600). The results show that the boron doping of the carbon supports plays an important role in controlling the size and dispersion of Pt nanoparticles and the O(2)adsorption/dissociation of the oxygen reduction reaction. A further accelerated durability test proves that boron doping can greatly enhance the stability of carbon support and thus improves the electrochemical performance of the catalyst during the long-time running. All these results suggest boron-doped carbon has great potential for application in fuel cells.
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