Characterization of carbon-supported platinum nano-particles synthesized using magnetron sputtering for application in PEM electrochemical systems

Fedotov, A. A.; Grigoriev, S.A.; Lyutikova, E. K.; Millet, Pierre; Фатеев, В. Н.

doi:10.1016/j.ijhydene.2012.09.121

Cited by 37 publications

(7 citation statements)

References 16 publications

(9 reference statements)

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“…Due to the particle's agglomeration, the precious determination of particle size is not straightforward and X-ray diffraction data additionally was used below. Particle size for tin dioxide-modified catalysts is close to those for Pt 40 /C [31][32][33] catalyst but larger than the size of Pt/C catalyst particles and in a good agreement with previous study for Pt 20 /SnO x 8 /C and Pt 20 /SnO x 12 /C [29].…”

Section: Introductionsupporting

confidence: 91%

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: Introductionsupporting

confidence: 91%

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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“…Our previous investigations [8,11,12] demonstrated a rather high efficiency of magnetron sputtering mainly for catalyst synthesis.…”

Section: Introductionmentioning

confidence: 99%

New physical technologies for catalyst synthesis and anticorrosion protection

Фатеев

Alekseeva

Lutikova

et al. 2016

International Journal of Hydrogen Energy

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“…Electrochemical energy conversion devices, such as polymer electrolyte membrane fuel cells (PEMFCs) and PEM electrolyzers are considered as possible candidates for integration in future renewable energy network. 1,2 However, the oxygen reduction reaction (ORR) kinetic at the cathode of a PEMFC is slow and the overpotential at the cathode is generally high (higher than 0.200 V), whereas that of the hydrogen oxidation at the anode is ca. 0.050 V. 3 For this purpose, platinum (Pt) or its alloys are often required as electrocatalysts because of their excellent catalytic activity for the ORR.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Platinum Nanoparticles by Plasma Sputtering onto Glycerol: Effect of Argon Pressure on Their Physicochemical Properties

et al. 2021

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Electrochemical energy conversion devices, such as polymer electrolyte membrane fuel cells (PEMFCs) and PEM electrolyzers are considered as possible candidates for integration in future renewable energy network 1,2 . However, the oxygen reduction reaction (ORR) kinetic at the cathode of a PEMFC is slow and the overpotential at the cathode is generally high (higher than 0.200 V), whereas that of the hydrogen oxidation at the anode is ca. 0.050 V 3 . For this purpose, platinum (Pt) or its alloys are often required as electrocatalyst because of their excellent catalytic activity for the ORR 4 . Electrocatalysis involves surface reactions, therefore, a high surface/inner atoms ratio is desirable to improve the Pt nanoparticles (Pt NPs) performance. NPs with size ranging between 2 to 4 nm are generally preferred 5 .NPs can be obtained through various physical, chemical or physicochemical routes 6,7 . The chemical methods are very versatile in terms of controlling NPs shape and size by varying the reaction conditions. However, NPs chemical synthesis requires additives, which generate by-products difficult to remove and NPs with limited purity. In contrast, physical methods (such as sputtering, thermal evaporation, laser ablation, spark discharge…) on solid substrates avoid the use of additives, allowing the production of pure metallic NPs with the same material composition as that of the starting material. Moreover, these methods can be considered as green approaches using non-toxic reducing agents and avoiding the formation of byproducts 8 . Among physical techniques for preparing electrocatalytic NPs, magnetron sputtering is known to produce efficient Pt NPs deposited on a microporous carbon layer 9 or on a polymer electrolyte membrane 10 to directly fabricate the catalytic layer composite. However, using the sputtering method for the deposition of metal NPs onto such substrates often makes the control of the NPs properties (size, dispersion and morphology) complex. Moreover, this process makes also difficult to create three phase boundaries by the addition of ionomer in comparison with the conventional liquid ink preparation techniques based on classical chemical processes for carbon supported NPs. A solution consists in synthesizing NPs directly in a liquid phase using magnetron sputtering technique and to disseminate the NPs onto a porous substrate. This innovative method

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Characterization of carbon-supported platinum nano-particles synthesized using magnetron sputtering for application in PEM electrochemical systems

Cited by 37 publications

References 16 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

New physical technologies for catalyst synthesis and anticorrosion protection

Synthesis of Platinum Nanoparticles by Plasma Sputtering onto Glycerol: Effect of Argon Pressure on Their Physicochemical Properties

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