2019
DOI: 10.1039/c9ra05910e
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Preparation and thermal treatment influence on Pt-decorated electrospun carbon nanofiber electrocatalysts

Abstract: Crystalline platinum nanoparticles supported on carbon nanofibers were synthesized for use as an electrocatalyst for polymer electrolyte membrane fuel cells. The nanofibers were prepared by a method of electrospinning from polymer solution with subsequent pyrolysis. Pt nanoneedles supported on polyacrylonitrile pyrolyzed electrospun nanofibers were synthesized by chemical reduction of H 2 [PtCl 6 ] in aqueous solution. The synthesized electrocatalysts were investigated using scanning, high resolution transmiss… Show more

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Cited by 20 publications
(17 citation statements)
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“…The material contains 5.1% Ni, 0.92% Zr, and 0.85% Ce according to elemental analysis. The electrical conductivity of this material reached 12.3 S cm −1 which makes it sufficient for use in fuel cell electrodes as it was confirmed by our previous studies [ 31 , 32 , 33 ].…”
Section: Resultssupporting
confidence: 82%
See 1 more Smart Citation
“…The material contains 5.1% Ni, 0.92% Zr, and 0.85% Ce according to elemental analysis. The electrical conductivity of this material reached 12.3 S cm −1 which makes it sufficient for use in fuel cell electrodes as it was confirmed by our previous studies [ 31 , 32 , 33 ].…”
Section: Resultssupporting
confidence: 82%
“…Earlier we have shown [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ], that platinized highly macroporous CNF self-supporting mats, which were obtained by the method of electrospinning (ES) from polyacrylonitrile (PAN) polymer solution [ 38 , 39 ] with further stabilization in air, pyrolysis under vacuum [ 40 ], and platination in hexachloroplatinic acid solution, can be successfully used in HT-PEMFC as gas diffusion electrodes (GDEs), both on cathode and anode sides. Thus, polybenzimidazole membrane PBI-OPht was developed in our group for this purpose [ 41 , 42 ].…”
Section: Introductionmentioning
confidence: 99%
“…To obtain the CNF electrode, a procedure similar to those that have already been described in our previous studies was employed [ 14 , 15 , 16 , 17 , 18 , 19 ]. Zirconium (IV) chloride, nickel (II) acetate, polyacrylonitrile (PAN), H 2 [PtCl 6 ]·6H 2 O, and DMF (Merck KGaA, Darmstadt, Germany) were used as received.…”
Section: Methodsmentioning
confidence: 99%
“…Despite the advantages listed above, the PBI-O-PhT membrane requires further improvement. This becomes even more important when using the latest electrospun carbon-nanofiber (CNF)-based gas-diffusion electrodes (GDEs) Pt/CNF with a higher stability [ 15 , 16 , 17 , 18 , 19 ] compared with the commercial Celtec ® P1000 (BASF, Ludwigshafen am Rhein, Germany). The necessity to replace carbon-black-based electrodes for HT-PEM fuel cells with more stable ones, for example, based on carbon nanostructured materials, such as CNF, has been extensively discussed in the literature [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”
Section: Introductionmentioning
confidence: 99%
“…Under these conditions, the fine understanding of the doubly beneficial effects of support nanoscale morphology and a strong metal-support interface based on controlled surface fabrication and high-energy metal deposition is essentially challenging due to their multiple interrelated structural factors. Due to the instability of carbon black in fuel cell operations, alternative carbon supports for ORR have been developed, e.g., electrospun carbon nanofiber, 14 multiwalled carbon nanotubes (MWCNTs), reduced graphene oxide (rGO), and a nanocomposite of indium tin oxide with rGO, 15 where MWCNTs showed the smallest degradation.…”
Section: Introductionmentioning
confidence: 99%