Preparation and characterization of porous sponge-like Pd@Pt nanotubes with high catalytic activity for ethanol oxidation

Luo, Wucheng; Zhou, Haihui; Fu, Chaopeng; Huang, Zhongyuan; Gao, Na; Kuang, Yafei

doi:10.1016/j.matlet.2016.03.012

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…Because of the high cost and scarcity of Pt, Pd-based bimetallic alloy nanosponges are being studied extensively. 64 While Au, Ag, Pt and Pd based bimetallic nanosponges have been under a great research focus, other combinations of bimetallic alloy nanosponges such as Cu and Ni are also emerging. 36,56,[65][66][67]…”

Section: Bimetallic Nanospongesmentioning

confidence: 99%

Metallic nanosponges for energy storage and conversion applications

et al. 2022

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Section: Bimetallic Nanospongesmentioning

confidence: 99%

Metallic nanosponges for energy storage and conversion applications

et al. 2022

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“…On the other hand, the increase of the Pd ratio shifts the binding energy of Pd 3d electrons to lower values. The changes in the binding energy observed with the Pt:Pd ratio demonstrates the change of electronic structure due to the formation of a PtPd alloy and the presence of electronic effects [32,40]. The electrochemical characterization of the nanoparticles was carried out by cyclic voltammetry in a 0.1 M NaOH solution at a scan rate of 0.05 V s −1 (Figure 5a-f 3.…”

Section: Characterization Of the Nanoparticlesmentioning

confidence: 99%

“…Mono and bimetallic Pt and Pd nanoparticles have been used for the electrocatalytic oxidation of ethanol. In all these studies, PtPd nanoparticles on different supports show better electrocatalytic properties than pure Pt or Pd nanoparticles [23][24][25][26][27][28][29][30][31][32]. However, due to the different criteria for comparing the electrocatalytic activity of these electrodes and the variety of supports, it is not clear which is the optimal composition for the EOR.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pd on the Electrocatalytic Activity of Pt towards Oxidation of Ethanol in Alkaline Solutions

et al. 2021

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The understanding of electrocatalytic activity and poisoning resistance properties of Pt and Pd nanoparticles, recognized as the best electrocatalysts for the ethanol oxidation reaction, is an essential step for the commercialization of direct ethanol fuel cells (DEFCs). In this paper, mono and bimetallic Pt and Pd nanoparticles with different atomic ratios have been synthesized to study their electrocatalytic properties for an ethanol oxidation reaction in alkaline solutions. The different nanoparticles were physiochemically characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characterization was performed by cyclic voltammetry and chronoamperometry measurements. The electrochemical measurements indicate that Pt nanoparticles have much higher electrocatalytic activity for ethanol oxidation than Pd nanoparticles. The studies with bimetallic PtPd nanoparticles showed a significant impact of their composition on the ethanol oxidation. Thus, the highest electrocatalytic activity and poisoning resistance properties were obtained for Pt3Pd2 nanoparticles. Moreover, this study demonstrates that the poisoning of the catalyst surface through ethanol oxidation is related to the prevalence of the acetaldehyde–acetate route and the polymerization of acetaldehyde through aldol condensation in the alkaline media.

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“…A commercially available PU sponge can harness a superamphiphobic property due to its inherent pore structure, and its intrinsic excellent elasticity is attractive for the durability. Especially, due to its very high surface-to-volume ratio, many studies have been reported that a porous sponge is broadly utilized for catalyst, lithium ion-battery, and cell growth templates 30 31 32 . However, they are also typically hydrophilic.…”

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confidence: 99%

A Superamphiphobic Sponge with Mechanical Durability and a Self-Cleaning Effect

Kim

Kwak

et al. 2016

Sci Rep

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A robust superamphiphobic sponge (SA-sponge) is proposed by using a single initiated chemical vapor deposition (i-CVD) process. Poly(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl methacrylate) (PFDMA) is deposited on a commercial sponge by the polymerization of fluoroalkyl acrylates during the i-CVD process. This PFDMA is conformally coated onto both the exterior and interior of the sponge structure by a single step of the i-CVD process at nearly room temperature. Due to the inherent porous structure of the sponge and the hydrophobic property of the fluorine-based PFDMA, the demonstrated SA-sponge shows not only superhydrophobicity but also superoleophobicity. Furthermore, the fabricated SA-sponge is robust with regard to physical and chemical damage. The fabricated SA-sponge can be utilized for multi-purpose applications such as gas-permeable liquid separators.

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Preparation and characterization of porous sponge-like Pd@Pt nanotubes with high catalytic activity for ethanol oxidation

Cited by 8 publications

References 16 publications

Metallic nanosponges for energy storage and conversion applications

Metallic nanosponges for energy storage and conversion applications

Effect of Pd on the Electrocatalytic Activity of Pt towards Oxidation of Ethanol in Alkaline Solutions

A Superamphiphobic Sponge with Mechanical Durability and a Self-Cleaning Effect

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