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Cited by 378

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Fluorine-Doped Carbon Blacks: Highly Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction

Sun, Xiujuan, Zhang, Yuwei, Song, Ping, Pan, Jing, Zhuang, Lin, Xu, Weilin, Xing, Wei·2013·ACS Catalysis

Abstract

For the goal of practical industrial development of fuel cells, inexpensive, sustainable, and high performance electrocatalysts for oxygen reduction reactions (ORR) are highly desirable alternatives to platinum (Pt) and other rare materials. In this work, sustainable fluorine (F)-doped carbon blacks (CB-F) as metal-free, low-cost, and high-performance electrocatalysts for ORR were synthesized for the first time. The performance (electrocatalytic activity, long-term operation stability, and tolerance to poisons) of the best one (BP-18F, based on Black Pearls 2000 (BP)) is on the same level as Pt-based or other best non-Pt-based catalysts in alkaline medium. The maximum power density of alkaline direct methanol fuel cell with BP-18F as the cathode (3 mg/cm 2 ) is ∼15.56 mW/cm 2 at 60 °C, compared with a maximum of 9.44 mW/cm 2 for commercial Pt/C (3 mg Pt /cm 2 ). All these results unambiguously demonstrate that these sustainable CB-F catalysts are the most promising alternatives to Pt in an alkaline fuel cell. Since sustainable carbon blacks are 10 000 times less expensive and much more abundant than Pt or other rare materials, these CB-F electrocatalysts possess the best price/performance ratio for ORR to date.

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Metadata

Authors
Sun, X., Zhang, Y., Song, P., Pan, J., Zhuang, L., Xu, W., & Xing, W.
Venue
ACS Catalysis
Published
2013-07-11
Volume
3
Issue
8
Pages
1726-1729
ISSN
2155-5435 (ISSN-L)
OpenAlex
W2323446835
Cited by
378
References
5
FWCI
12.50
Type
journal article
Language
en
Open access
closed

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