Platinum‐Decorated Ultrafine Pd Nanoparticles Monodispersed on Pristine Graphene with Enhanced Electrocatalytic Performance

Wang, Haining; Lu, Shanfu; Zhang, Yiwen; Lan, Fei; Shang, Jia‐Xiang; Xiang, Yan

doi:10.1002/cplu.201500404

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…Meanwhile, there is a lack of information for the simulation of the catalysts support by slab models. Therefore, we developed a simple and efficient cluster model to describe the metal catalyst properties in our previous work. , Using the cluster model, we successfully obtained the volcano plots of the oxygen reduction reaction (ORR) activity of different metal catalysts, which could represent the one obtained based on the slab models. We further confirmed this model by comparing the simulation and experiment results of silver nanoparticles supported on carbon nanotubes .…”

Section: Resultsmentioning

confidence: 99%

Carbide-Supported PtRu Catalysts for Hydrogen Oxidation Reaction in Alkaline Electrolyte

et al. 2021

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Owing to the sluggish kinetics of the hydrogen oxidation reaction (HOR) in alkaline electrolyte, it is considered a limiting reaction for the development of anion-exchange membrane fuel cell (AEMFC) technology. Studies of alkaline HOR catalysis mainly focus on carbon-supported nanoparticles, which have weak metal–support interactions. In this contribution, we present a unique support based on transition metal carbides (TMCs = Mo2C, Mo2C–TaC, and Mo2C–W2C) for the HOR. PtRu nanoparticles are deposited onto the TMC supports and are characterized by a variety of analytical techniques. The major findings are (i) experimental and theoretical evidence for strong-metal support interaction by both X-ray absorption near-edge structure and density functional theory, (ii) the kinetic current density (j k,s) @25 mV of PtRu/Mo2C–TaC catalyst are 1.65 and 1.50 times higher than that of PtRu/Mo2C and PtRu/Mo2C–W2C, respectively, and (iii) enhanced “tethering” of PtRu nanoparticles on TMC supports. Furthermore, the AEMFC based on the PtRu/Mo2C–TaC anode exhibited a peak power density of 1.2 W cm–2 @70 °C, opening the doors for the development of advanced catalysts based on engineering support materials.

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Section: Resultsmentioning

confidence: 99%

Carbide-Supported PtRu Catalysts for Hydrogen Oxidation Reaction in Alkaline Electrolyte

et al. 2021

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“…Ultrafine platinum powder is a kind of material with high chemical activity. The application of ultrafine Pt powder as a microelectronic material (platinum electronic paste) and catalytic material is expanding rapidly [1][2][3][4][5][6][7]. Pt electronic paste is mainly used to prepare platinum electrode oxygen sensors for automobiles and thick-film platinum resistance temperature elements [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…So, a suitable Pt powder plays a key role in preparing Pt electronic paste. At present, a suitable Pt powder for Pt electronic paste is mainly synthesized by the liquid chemical reduction method [6,7,12]. However, the liquid chemical reduction method has several limitations in terms of agglomeration, the purity of Pt powder, and the production of a large amount of waste liquor.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of High-Purity Ultrafine Platinum Particles by Chemical Refining Method

Zhao

Cao

et al. 2019

Journal of Nanomaterials

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High-purity ultrafine platinum particles are widely used to fabricate platinum electrode oxygen sensors for automobiles and thick-film platinum resistance temperature elements. In this study, the near-spherical ultrafine Pt particles of high purity were synthesized by chemical purification, spray-drying, and ignition from crude Pt powder. Impurities in the initial Pt powder were eliminated by the 001×7 strong acid cation resin exchange column and precipitation treatment. Near-spherical (NH4)2PtCl6 particles were obtained after spray-drying, and then the microstructure and size of as-synthesized Pt particles were controlled by the ignition process. The influences of different heating temperatures during ignition treatment on the microstructure and size of Pt particles were investigated. The purity of as-synthesized Pt particles was higher than 99.999 wt%, and the average size was about 1.12 μm. The results indicate that high-purity ultrafine Pt particles can be efficiently synthesized by chemical refining.

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Carbon paper-free membrane electrode assembly fabricated from a Pt electrocatalyst supported on multi-walled carbon nanotubes

et al. 2017

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Platinum‐Decorated Ultrafine Pd Nanoparticles Monodispersed on Pristine Graphene with Enhanced Electrocatalytic Performance

Cited by 9 publications

References 34 publications

Carbide-Supported PtRu Catalysts for Hydrogen Oxidation Reaction in Alkaline Electrolyte

Carbide-Supported PtRu Catalysts for Hydrogen Oxidation Reaction in Alkaline Electrolyte

Synthesis and Characterization of High-Purity Ultrafine Platinum Particles by Chemical Refining Method

Carbon paper-free membrane electrode assembly fabricated from a Pt electrocatalyst supported on multi-walled carbon nanotubes

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