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Doping Carbon Nanotubes by N, S, and B for Electrocatalytic Oxygen Reduction: a Systematic Investigation on Single, Double, and Triple Doped Modes

Abstract

In this work, polydopamine (PDA) coated multi-walled carbon nanotube tubes (CNTs) have been employed as a reactive platform for the anchoring of multiple heteroatom dopants. Single-, double-, and triple-doped CNTs by the elements of N, S and B have been successfully prepared and systematically investigated as electrocatalysts for oxygen reduction reaction (ORR). The obtained catalysts have been fully characterized by nitrogen-adsorption technique, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Raman spectra. Combining with the physicochemical properties of different doped CNTs and their catalytic performance, various doping modes are compared and the mechanism of these processes has been investigated. The synergetic effects in double and triple doped CNTs by N, S, and B are found. The new non-metal catalyst of N-S-B-CNTs exhibits high electrocatalytic activity and good stability for ORR.

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Publication details

The article was received on 15 Mar 2017, accepted on 17 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7CY00491E
Citation: Catal. Sci. Technol., 2017, Accepted Manuscript
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    Doping Carbon Nanotubes by N, S, and B for Electrocatalytic Oxygen Reduction: a Systematic Investigation on Single, Double, and Triple Doped Modes

    S. Liu, G. Li, Y. Gao, Z. Xiao, J. Zhang, Q. Wang, X. Zhang and L. Wang, Catal. Sci. Technol., 2017, Accepted Manuscript , DOI: 10.1039/C7CY00491E

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