Synthesis of carbon nanofibers/poly(para-phenylenediamine)/nickel particles nanocomposite for enhanced methanol electrooxidation

Halim, El Mahdi, Elbasri, Miloud, Perrot, Hubert, Sel, Ozlem, Lafdi, Khalid and El Rhazi, Mama (2019) Synthesis of carbon nanofibers/poly(para-phenylenediamine)/nickel particles nanocomposite for enhanced methanol electrooxidation. International Journal of Hydrogen Energy, 44 (45). pp. 24534-24545. ISSN 0360-3199

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Abstract

Several studies have been conducted on direct methanol fuel cells (DMFCs) to resolve major issues such as the high cost of the catalyst and the poisoning of the electrode. Herein, a low-cost catalyst based on nickel particles (NiPs), carbon nanofibers (CNF) and poly(para-phenylenediamine) (PpPD) was carried out using a simple electrochemical method. The morphology and structure of the nanocomposite electrodes are characterized by field-emission gun scanning electron microscopy coupled with an energy dispersive X-ray detector, X-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. The effects of various parameters such as the PpPD film thickness and the NiPs content on the electrocatalytic performance of CPE/CNF/PpPD/NiPs are evaluated which lead to the optimized composition. The results of the methanol electrooxidation reaction at room temperature showed that the optimized CPE/CNF/PpPD/NiPs nanocomposite exhibits a high catalytic activity (Ip = 38.11 mA cm−2), good stability and durability for more than 6 h in comparison with CPE/CNF/NiPs. These findings truly highlight the synergetic effect of CNF/PpPD in enhancing the electrochemical activity and stability and the vast potential of CPE/CNF/PpPD/NiPs as low-cost catalyst and electrodes for DMFCs.

Item Type:	Article
Uncontrolled Keywords:	Poly(para-phenylenediamine), Carbon nanofibers, Nickel particles, Methanol electrooxidation
Subjects:	F200 Materials Science F300 Physics H800 Chemical, Process and Energy Engineering
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Elena Carlaw
Date Deposited:	05 Nov 2019 15:35
Last Modified:	05 Nov 2019 15:35
URI:	http://nrl.northumbria.ac.uk/id/eprint/41372

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