Electrocatalytic layers based on reduced graphene oxide for fabrication of low-temperature fuel cells

Grigor’ev, S. A.; Pushkarev, Artem S.; Kalinichenko, Valery N.; Pushkareva, I. V.; Presnyakov, M. Yu.; Фатеев, В. Н.

doi:10.1134/s0023158415050079

Cited by 15 publications

(14 citation statements)

References 14 publications

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“…Catalytic layers were made through the catalytic inks air-spraying onto the GDE surface as described in [56] using 15 wt % Nafion ® ionomer content. The MEA was clamped into the titanium test cell as described in [31,57]. MEAs testing was carried out using pure dry hydrogen and air at relative humidity of 100%.…”

Section: Fuel Cell Meas Fabrication and Testingmentioning

confidence: 99%

On the Influence of Composition and Structure of Carbon-Supported Pt-SnO2 Hetero-Clusters onto Their Electrocatalytic Activity and Durability in PEMFC

et al. 2019

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A detailed study of the structure, morphology and electrochemical properties of Pt/C and Pt/x-SnO2/C catalysts synthesized using a polyol method has been provided. A series of catalysts supported on the SnO2-modified carbon was synthesized and studied by various methods including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), electrochemical methods, and fuel cell testing. The SnO2 content varies from 5 to 40 wt %. The TEM images, XRD and XPS analysis suggested the Pt-SnO2 hetero-clusters formation. The SnO2 content of ca. 10% ensures an optimal catalytic layer structure and morphology providing uniform distribution of Pt-SnO2 clusters over the carbon support surface. Pt/10wt %-SnO2/C catalyst demonstrates increased activity and durability toward the oxygen reduction reaction (ORR) in course of accelerated stress testing due to the high stability of SnO2 and its interaction with Pt. The polymer electrolyte membrane fuel cell current–voltage performance of the Pt/10wt %-SnO2/C is comparable with those of Pt/C, however, higher durability is expected.

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Section: Fuel Cell Meas Fabrication and Testingmentioning

confidence: 99%

On the Influence of Composition and Structure of Carbon-Supported Pt-SnO2 Hetero-Clusters onto Their Electrocatalytic Activity and Durability in PEMFC

et al. 2019

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“…In the present work the following carbon support materials were investigated: nitrogen-doped multi-walled carbon nanotubes (MWCNTs) (5 at.% N-MWCNTs), which were synthesized by decomposition of the 40%C 2 H 4 /60%NH 3 mixture using the Fecontaining catalyst at 700°C [13]. Carbon nanofibers (CNF) provided by Grupo Graphenano (Spain) [14], Vulcan XC-72R carbon black (Cabot, USA) (the commonly used carbon support of PEMFC electrocatalysts) and reduced graphene oxide (RGO) [1,[15][16].…”

Section: Experimental 21 Used Nanostructured Carbon Materialsmentioning

confidence: 99%

“…An efficiency and a performance of polymer electrolyte membrane (PEM) electrochemical systems (fuel cells (FC) [1], oxygen concentrator [2], electrolysis cell for ozone production [3], reversible fuel cells [4][5] etc.) considerably depend on the structure and properties of the both the catalyst and the catalytic layer based on it.…”

Section: Introductionmentioning

confidence: 99%

COMPARATIVE STUDY OF Pt-BASED CATALYSTS SUPPORTED ON VARIOUS CARBON SUPPORTS FOR SOLID POLYMER ELECTROLYTE ELECTROCHEMICAL SYSTEMS

Baranov¹,

Porembskii²,

Lyutikova³

et al. 2019

Chemical Problems

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The comparative study of electrocatalysts synthesized by chemical reduction and pulsed magnetron-ion sputtering for polymer electrolyte membrane electrochemical systems are presented. Various carbon nanomaterials were used as supports of Pt nanoparticles: carbon black, nanotubes, nanofibers and reduced graphene oxide. The electrochemical studies of the obtained electrocatalysts as well as their testing in the fuel cell membrane-electrode assembly were carried out. The influence of supports morphology and the deposition approach of Pt nanoparticles on the electrochemically active surface area and activity of electrocatalysts, as well as the prospects of the magnetron-ion sputtering approach for electrocatalysts synthesis were studied and discussed.

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“…During the last two decades, interest in graphene-type materials (graphene, reduced graphene oxide (RGO), carbon nanotubes (CNT), nanofibers (CNF) and so on) as electrocatalyst supports for proton-exchange membrane (PEM) electrochemical systems [1] has been growing (see, for example, [2,3,4,5,6,7,8]). This interest is based on their higher electric conductivity in comparison with conventional carbon supports (i.e., Vulcan XC-72), which can facilitate electron transfer during electrochemical reactions and higher corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide and Its Modifications as Catalyst Supports and Catalyst Layer Modifiers for PEMFC

et al. 2018

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Reduced graphene oxide (RGO) and RGO modified by ozone (RGO-O) and fluorine (RGO-F) were synthesized. Pt nanoparticles were deposited on these materials and also on Vulcan XC-72 using the polyol method. The structural and electrochemical properties of the obtained catalysts were investigated in a model glass three-electrode electrochemical cell and in a laboratory PEM fuel cell. Among the RGO-based catalysts, the highest electrochemically active surface area (EASA) was obtained for the oxidized RGO supported catalyst. The EASA of the fluorine-modified RGO-supported catalyst was half as big. In the PEM fuel cell the performance of RGO-based catalysts did not exceed the activity of Vulcan XC-72-based catalysts. However, the addition of an RGO-O-based catalyst to Vulcan XC-72-based catalyst (in contrast to the RGO-F-based catalyst) allowed us to increase the catalyst layer activity and PEM fuel cell performance. Possible reasons for such an effect are discussed.

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Electrocatalytic layers based on reduced graphene oxide for fabrication of low-temperature fuel cells

Cited by 15 publications

References 14 publications

On the Influence of Composition and Structure of Carbon-Supported Pt-SnO2 Hetero-Clusters onto Their Electrocatalytic Activity and Durability in PEMFC

On the Influence of Composition and Structure of Carbon-Supported Pt-SnO2 Hetero-Clusters onto Their Electrocatalytic Activity and Durability in PEMFC

COMPARATIVE STUDY OF Pt-BASED CATALYSTS SUPPORTED ON VARIOUS CARBON SUPPORTS FOR SOLID POLYMER ELECTROLYTE ELECTROCHEMICAL SYSTEMS

Reduced Graphene Oxide and Its Modifications as Catalyst Supports and Catalyst Layer Modifiers for PEMFC

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