Carbon nanofiber paper cathode modification for higher performance of phosphoric acid fuel cells on polybenzimidazole membrane

Skupov, Kirill M.; Razorenov, D. Yu.; Zhigalina, V. G.; Жигалина, О. М.; Пономарев, И. И.; Volkova, Yu. A.; Volfkovich, Yu. M.; Сосенкин, В. Е.

doi:10.1134/s1023193517070114

Cited by 23 publications

(13 citation statements)

References 47 publications

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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: 81%

“…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%

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New Carbon Nanofiber Composite Materials Containing Lanthanides and Transition Metals Based on Electrospun Polyacrylonitrile for High Temperature Polymer Electrolyte Membrane Fuel Cell Cathodes

et al. 2020

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Electrospinning of polyacrylonitrile/DMF dopes containing salts of nickel, cobalt, zirconium, cerium, gadolinium, and samarium, makes it possible to obtain precursor nanofiber mats which can be subsequently converted into carbon nanofiber (CNF) composites by pyrolysis at 1000–1200 °C. Inorganic additives were found to be uniformly distributed in CNFs. Metal states were investigated by transmission electron microscopy and X-ray photoelectron spectroscopy (XPS). According to XPS in CNF/Zr/Ni/Gd composites pyrolyzed at 1000 °C, nickel exists as Ni0 and as Ni2+, gadolinium as Gd3+, and zirconium as Zr4+. If CNF/Zr/Ni/Gd is pyrolyzed at 1200 °C, nickel exists only as Ni0. For CNF/Sm/Co composite, samarium is in Sm3+ form when cobalt is not found on a surface. For CNF/Zr/Ni/Ce composite, cerium exists both as Ce4+ and as Ce3+. Composite CNF mats were platinized and tested as cathodes in high-temperature polymer electrolyte membrane fuel cell (HT-PEMFC). Such approach allows to introduce Pt–M and Pt–MOx into CNF, which are more durable compared to carbon black under HT-PEMFC operation. For CNF/Zr/Ni/Gd composite cathode, higher performance in the HT-PEMFC at I >1.2 A cm-2 is achieved due to elimination of mass transfer losses in gas-diffusion electrode compared to commercial Celtec®P1000.

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Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

New Carbon Nanofiber Composite Materials Containing Lanthanides and Transition Metals Based on Electrospun Polyacrylonitrile for High Temperature Polymer Electrolyte Membrane Fuel Cell Cathodes

et al. 2020

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“…Earlier we have demonstrated that this type of noncomposite GDEs could be used as anodes 14 and cathodes 12 for HT-PEMFC, but in spite of the GDE advantages, the electrodes showed a performance that was lower compared to that of the commercial Celtec® P1000.…”

Section: Introductionmentioning

confidence: 94%

“…1), but generally include the application of a catalytic ink (aqueous/alcohol dispersions of peruoropolymers and electrocatalysts Pt/C) on carbon paper or tissue with a peruorinated hydrophobic microporous layer. 1,4 For the rst time, we proved the possibility of fabricating platinum GDEs based on a carbon nanober non-woven self-supporting material for the membrane electrode assembly (MEA) of a hydrogen-air HT-PEMFC [12][13][14] where the PBI-O-Pht/ H 3 PO 4 membrane, namely a membrane of PBI type, developed by our group in the Institute of Organoelement Compounds (INEOS RAS) [15][16][17] was used. For this, the electrospinning method from a polymer solution was applied; the method has been used to prepare carbon nanobers (CNF) in many applications.…”

Section: Introductionmentioning

confidence: 99%

Probing of complex carbon nanofiber paper as gas-diffusion electrode for high temperature polymer electrolyte membrane fuel cell

et al. 2019

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“…In phosphoric acid fuel cells, again electrospun nanofiber mats can be applied as cathodes. Skupov et al, for example, modified cathodes for medium-temperature phosphoric fuel cells based on polybenzimidazole membranes [ 197 ]. They prepared PAN nanofiber mats from DMF, blended with carbon black and partly PVP, stabilized them in air and subsequently carbonized them at 900–1100 °C in vacuum.…”

Section: Fuel Cellsmentioning

confidence: 99%

Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

Banitaba

Ehrmann

2021

Polymers

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Electrochemical devices convert chemical reactions into electrical energy or, vice versa, electricity into a chemical reaction. While batteries, fuel cells, supercapacitors, solar cells, and sensors belong to the galvanic cells based on the first reaction, electrolytic cells are based on the reversed process and used to decompose chemical compounds by electrolysis. Especially fuel cells, using an electrochemical reaction of hydrogen with an oxidizing agent to produce electricity, and electrolytic cells, e.g., used to split water into hydrogen and oxygen, are of high interest in the ongoing search for production and storage of renewable energies. This review sheds light on recent developments in the area of electrospun electrochemical devices, new materials, techniques, and applications. Starting with a brief introduction into electrospinning, recent research dealing with electrolytic cells, batteries, fuel cells, supercapacitors, electrochemical solar cells, and electrochemical sensors is presented. The paper concentrates on the advantages of electrospun nanofiber mats for these applications which are mostly based on their high specific surface area and the possibility to tailor morphology and material properties during the spinning and post-treatment processes. It is shown that several research areas dealing with electrospun parts of electrochemical devices have already reached a broad state-of-the-art, while other research areas have large space for future investigations.

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Carbon nanofiber paper cathode modification for higher performance of phosphoric acid fuel cells on polybenzimidazole membrane

Cited by 23 publications

References 47 publications

New Carbon Nanofiber Composite Materials Containing Lanthanides and Transition Metals Based on Electrospun Polyacrylonitrile for High Temperature Polymer Electrolyte Membrane Fuel Cell Cathodes

New Carbon Nanofiber Composite Materials Containing Lanthanides and Transition Metals Based on Electrospun Polyacrylonitrile for High Temperature Polymer Electrolyte Membrane Fuel Cell Cathodes

Probing of complex carbon nanofiber paper as gas-diffusion electrode for high temperature polymer electrolyte membrane fuel cell

Application of Electrospun Nanofibers for Fabrication of Versatile and Highly Efficient Electrochemical Devices: A Review

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