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Catalysts 2017, 7(6), 189; doi:10.3390/catal7060189

Co3O4 Nanoparticle-Decorated N-Doped Mesoporous Carbon Nanofibers as an Efficient Catalyst for Oxygen Reduction Reaction

1
College of Materials Science and Technology, Jiangsu Key Laboratory of Materials and Technology for Energy Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Adam F. Lee, Jean-Philippe Dacquin and Karen Wilson
Received: 20 April 2017 / Revised: 19 May 2017 / Accepted: 9 June 2017 / Published: 15 June 2017
(This article belongs to the Special Issue Mesostructured Materials and Their Catalytic Applications)
View Full-Text   |   Download PDF [9065 KB, uploaded 15 June 2017]   |  

Abstract

A low cost, durable, and efficient electrocatalyst for oxygen reduction reactions (ORR) is essential for high-performance fuel cells. Here, we fabricated Co3O4 nanoparticles (NPs) anchored on N-doped mesoporous carbon nanofibers (Co3O4/NMCF) by electrospinning combined with the simple heat treatment. Within this composite, carbon nanofibers possess a mesoporous structure, contributed to obtain a high surface area, which can facilitate the infiltration of electrolyte. Moreover, this one-dimensional (1D) carbon nanofiber also acts as a 1D conductive channel, effectively improving the transmission of electrons. In addition, the doping of the N element with high content combined with homogenously distributed Co3O4 NPs can significantly enhance the ORR electrocatalytic activity. Benefiting from the advantages of material and structure, the Co3O4/NMCF catalyst favors a four electron transfer process in alkaline media, exhibiting good ORR electrocatalytic activity, and its durability is much better than that of commercial Pt/C. View Full-Text
Keywords: Co3O4 nanoparticles; N-doped mesoporous carbon nanfiber; electrospinning; electrocatalyst; oxygen reduction reaction; fuel cell Co3O4 nanoparticles; N-doped mesoporous carbon nanfiber; electrospinning; electrocatalyst; oxygen reduction reaction; fuel cell
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Xue, H.; Wang, T.; Gong, H.; Guo, H.; Fan, X.; Song, L.; Xia, W.; Feng, Y.; He, J. Co3O4 Nanoparticle-Decorated N-Doped Mesoporous Carbon Nanofibers as an Efficient Catalyst for Oxygen Reduction Reaction. Catalysts 2017, 7, 189.

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