Journal
ELECTROCHIMICA ACTA
Volume 137, Issue -, Pages 693-699Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.06.076
Keywords
Nitrogen-doped; Porous carbon; Electrocatalysis; Nitrobenzene; Hydrazine
Categories
Funding
- Doctoral Program of Higher Education of China [20130043110006]
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By using eco-friendly polydopamine as carbon and nitrogen precursor and commercial hydrophilic nano-CaCO3 as hard-template; a one step, cost-effective and green method to synthesize nitrogen-doped porous carbon (NPC) is presented. A series of NPC samples with different nitrogen contents have been reported. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectra (EDX), fourier transform infrared spectroscopy (IR), Raman spectroscopy, X-ray diffraction (XRD), nitrogen adsorption-desorption and X-ray photoelectron spectra (XPS) were employed for characterizations of NPC. The influence of BET surface area and different amounts of N-bonding configurations of NPC for the electrocatalysis towards nitrobenzene (NB) and hydrazine (N2H4) were investigated in detail. Results indicated that NPC with largest BET surface area and highest amounts of pyrrolic N and graphitic N showed improved electrocatalytic activity for NB and N2H4 in neutral solution. (C) 2014 Elsevier Ltd. All rights reserved.
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