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Issue 13, 2015
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Facile synthesis of nitrogen and fluorine co-doped carbon materials as efficient electrocatalysts for oxygen reduction reactions in air-cathode microbial fuel cells

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Abstract

Nitrogen and fluorine co-doped carbon black (BP-NF) was prepared via the direct pyrolysis of a mixture of polytetrafluoroethylene (PTFE) and BP-2000 under an ammonium atmosphere for high efficient ORR electrocatalysis in the air-cathode of microbial fuel cells (MFCs). The electrocatalytic activity of BP-NF is higher than that of single nitrogen or fluorine doped carbon materials (BP-N, BP-F), with an onset potential of E = 0.2 V (BP-NF), E = 0.1 V (BP-N), and a limiting current density of I = 4.5 mA cm−2 (BP-NF), I = 0.31 mA cm−2 (BP-F), respectively. The results demonstrated a synergistic ORR catalytic effect in N and F co-doping carbon material. The maximum power density of MFC with BP-NF as the cathode catalyst (672 mA cm−2) was higher than that with commercial Pt/C (572 mA cm−2).

Graphical abstract: Facile synthesis of nitrogen and fluorine co-doped carbon materials as efficient electrocatalysts for oxygen reduction reactions in air-cathode microbial fuel cells

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Supplementary files

Article information


Submitted
27 Nov 2014
Accepted
03 Feb 2015
First published
05 Feb 2015

J. Mater. Chem. A, 2015,3, 6873-6877
Article type
Paper
Author version available

Facile synthesis of nitrogen and fluorine co-doped carbon materials as efficient electrocatalysts for oxygen reduction reactions in air-cathode microbial fuel cells

K. Meng, Q. Liu, Y. Huang and Y. Wang, J. Mater. Chem. A, 2015, 3, 6873
DOI: 10.1039/C4TA06500J

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