Synthesis of PtCu nanowires in nonaqueous solvent with enhanced activity and stability for oxygen reduction reaction

Chen, Bing; Cheng, Daojian; Zhu, Jing

doi:10.1016/j.jpowsour.2014.05.104

Cited by 57 publications

(35 citation statements)

References 45 publications

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“…The thin layer of noble meta would become compressive in atom arrangement when supported on Fe, Co or Ni substrate. Bing Chen use DFT calculations understanding that the interaction of the Pt-monolayer with the Cu support can cause a reconstruction of electronic structure of surface Pt atoms and the downshift of d-band center could dramatically enhance the catalyst activity for ORR [57].…”

Section: Resultsmentioning

confidence: 99%

Improved catalytic activity of cobalt core–platinum shell nanoparticles supported on surface functionalized graphene for methanol electro-oxidation

Zhang

Yan

et al. 2015

Electrochimica Acta

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Section: Resultsmentioning

confidence: 99%

Improved catalytic activity of cobalt core–platinum shell nanoparticles supported on surface functionalized graphene for methanol electro-oxidation

Zhang

Yan

et al. 2015

Electrochimica Acta

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“…CuNWs were synthesized in an organic media using our recently developed method. [10] The as-prepared CuNWs have a diameter of 22.3 AE 3.1 nm and a length up to 10 mm, as indicated by the TEM images of different magnifications in Figure 1a and 1b. These one-dimensional CuNWs with uniform size are preferred templates for preparing electrocatalysts, owing to their high electron conductivity, low cost, and facile synthesis.…”

mentioning

confidence: 76%

“…[7b, 8b, 9] Cheng et al . has recently developed a facile method to prepare the PtCuNWs in an organic medium, and have examined their excellent electrocatalytic activity and durability for ORR . These results provide directions for the synthesis of CuNW coated with PtCuNPs for FAO.…”

Section: Figurementioning

confidence: 99%

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Composition–controlled Synthesis of PtCuNPs Shells on Copper Nanowires as Electrocatalysts

Cheng

et al. 2016

ChemistrySelect

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PtCuNPs-shells with adjustable composition on copper nanowires (CuNWs) are synthesized in an organic solvent. Transmission electron microscopy, X-ray diffraction, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy (XPS) measurement techniques are used to analyze the structure and surface composition of the as-prepared PtCuNPs-coated CuNWs (PtCu/CuNWs). The XPS results verify that the incorporation of Cu in the PtCuNPs-shells modified electronic state of Pt, which could further tune the formic acid oxidation (FAO) activity. Electrochemical measurements show that their FAO activities are strongly dependent on the PtCuNPs-shells composition. Our results show that PtCu/CuNWs with atom Pt:Cu ratio of 2:15 (PtCu/CuNWs-(2:15)) have the optimal shell composition and show the best FAO performance, with a specific activity of 0.92 mA cm Pt À2 and a mass activity of 0.54 A mg pt À1 at 0.5 V (vs. RHE), which are 6.6-and 6.0-fold enhancements over those of the commercial Pt/C (0.14 mA cm Pt À2 and 0.09 A mg pt À1 ) catalyst.

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“…16d). More recently, Chen et al explored a nonaqueous synthetic method of PtCu nanowires by depositing Pt on the surface of Cu nanowires in organic solution [156]. Cu nanowires were synthesized by a reduction of Cu(acac) 2 with the Fig.…”

Section: Template-free Wet-chemical Synthesis Of 1d Metal Electrocatamentioning

confidence: 99%

An Overview of One-Dimensional Metal Nanostructures for Electrocatalysis

Kim

Noh

et al. 2015

Catal Surv Asia

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Nanostructures of metals are of great importance in the area of catalysis due to their distinct physicochemical properties compared to their bulk counterparts. Size and morphology dependent properties of metal nanostructures provide a rational approach toward designing a highly efficient catalytic materials. In particular, onedimensional (1D) metallic nanostructures in the shapes of wires, rods and tubes have recently been studied with great interest due to their potential uses as electrocatalysts for oxidations of fuels and reduction of oxidants in fuel cell applications. Compared to the conventional nanoparticle catalysts that are generally supported on carbon, these 1D materials can offer significant opportunities to improve catalytic performance under fuel cell reaction conditions by their structural characteristics such as preferential exposure of reactive crystal facets, high stability, and facile electron transport. Great advances in the synthesis of electrocatalysts based on the metallic nanowires and nanotubes have been made with enhanced electrocatalytic activity and durability. This review summarizes the research progress made on synthesizing 1D metal electrocatalysts using different synthetic strategies, including template-assisted method, electrospinning, and template-free wet-chemical synthesis, with an emphasis on the electrocatalytic performance of these 1D nanomaterials.

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Synthesis of PtCu nanowires in nonaqueous solvent with enhanced activity and stability for oxygen reduction reaction

Cited by 57 publications

References 45 publications

Improved catalytic activity of cobalt core–platinum shell nanoparticles supported on surface functionalized graphene for methanol electro-oxidation

Improved catalytic activity of cobalt core–platinum shell nanoparticles supported on surface functionalized graphene for methanol electro-oxidation

Composition–controlled Synthesis of PtCuNPs Shells on Copper Nanowires as Electrocatalysts

An Overview of One-Dimensional Metal Nanostructures for Electrocatalysis

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