Ultrasonic synthesis of highly dispersed Pt nanoparticles supported on MWCNTs and their electrocatalytic activity towards methanol oxidation

Tong, Hao; Li, Hu‐Lin; Zhang, Xiaogang

doi:10.1016/j.carbon.2007.06.028

Cited by 101 publications

(34 citation statements)

References 30 publications

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“…For example, carbon nanotubes (CNT) supported platinum catalyst shows superior activity in catalytic oxidation of various organic compounds [7,8]. Also, the electrocatalytic activity of Pt/CNT towards methanol oxidations was discovered [9].…”

Section: Introductionmentioning

confidence: 99%

Deposition of Monodisperse Platinum Nanoparticles of Controlled Size on Different Supports

Kaidanovych¹,

Kalishyn²,

Strizhak³

2013

ANP

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Monodisperse platinum nanoparticles with controlled size were synthesized by polyol synthesis and supported on γ-Al 2 O 3 , SiO 2 and carbon nanotubes (CNT) by the colloid deposition method. The average size of Pt nanoparticles in colloidal solutions and on supports was determined by TEM images and from XRD patterns. The size of Pt nanoparticles supported on SiO 2 and CNT determined from XRD patterns is in a good agreement with size obtained from the TEM analyses. There were shown that no agglomeration and size changing of Pt nanoparticles on these supports were observed. All these findings illustrate that the method of colloid deposition allows one to obtain catalyst with monodisperse platinum nanoparticles of controlled size deposited on different supports without changing the nanoparticle's size and morphology.

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Section: Introductionmentioning

confidence: 99%

Deposition of Monodisperse Platinum Nanoparticles of Controlled Size on Different Supports

Kaidanovych¹,

Kalishyn²,

Strizhak³

2013

ANP

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show abstract

“…[13] The consistent of Figure 2(B) cyclic voltammogram with the literature results confirms the PtNPs synthesis, properly. [14] The electrochemical surface area (EAS) of PtNPs is an important factor for the determination of catalytic activity, especially for an oxidation reaction as a surface reaction. This parameter can be calculated by CV techniques.…”

Section: Characterisation Of Lamno 3 Npsmentioning

confidence: 99%

“…It shows that the oxidation of methanol is an irreversible charge transfer electrode process. The plot of E p and ln (y) has been a straight line with a slope (Equation (7)) [14]:…”

Section: Scan Ratementioning

confidence: 99%

The improvement of methanol oxidation using nano-electrocatalysts

Yavari

Noroozifar

Khorasani-Motlagh

2016

Journal of Experimental Nanoscience

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In this study, a nano-scale perovskite LaMnO 3 (LaMnO 3 NPs) was synthesised by a rapid microwave-assisted co-precipitation method and characterised by X-ray powder diffraction, Fourier transform infrared, scanning electron microscopy and energy dispersive X-ray techniques. A modified glassy carbon electrode with Pt nanoparticles (PtNPs), functionalised multi-walled carbon nanotubes (CNTs) and LaMnO 3 NPs as multifunctional catalyst was prepared and furthermore, its catalytic activity toward methanol oxidation was investigated. Based on the electrochemical studies, the PtNPsÀCNTsÀLaMnO 3 NPs nanocomposite showed considerable activity for methanol oxidation in comparison to PtNPs, PtNPsÀCNTs and PtNPsÀLaMnO 3 NPs. The results displayed the adding of CNTs and LaMnO 3 NPs into PtNPs catalyst and the use of a more porous matrix of chitosan can improve the anode performance for methanol oxidation. The transition metals presence at catalyst structure caused to catalyse the methanol dehydrogenation. The decreasing the poisoning rate of the PtNPs with intermediates and by-products of anodic reaction was observed due to the bi-functional effect electrical and oxygen ion conductive perovskite. Direct methanol fuel cell (DMFC) was designed, assembled and tested with suggested PtNPsÀCNTsÀLaMnO 3 NPs nanocomposites as anodic catalyst at variety conditions. The effect of experimental factors such as temperature and methanol concentration on DMFC performances was investigated and optimised.KEYWORDS direct methanol fuel cell; perovskite; nano-electrocatalysis; cyclic voltammetry; methanol catalytic oxidation Highlights @ LaMnO 3 nanoparticles were synthesised and characterised. @ Dispersed Pt, PtÀLaMnO 3 and PtÀCNTsÀLaMnO 3 in chitosan were prepared. @ Their catalytic activity toward methanol oxidation was investigated.

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“…This shows that the methanol oxidation is an irreversible charge transfer process. The plot of E p and ln (υ) was a straight line with a slope [35]:…”

Section: /2mentioning

confidence: 99%

Perovskite-Type LaFeO3 and LaFeO3-CNTs Nanocrystals as Active Anode for Methanol Oxidation in Alkaline Solutions

Ekrami‐Kakhki¹,

Yavari²,

Saffari³

et al. 2016

JEE

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In the current study, perovskite type LaFNPs (LaFeO 3 nanoparticles) were prepared by a rapid microwave-assisted co-precipitation method and their presence was confirmed by XRD, EDX and SEM techniques. LaFNPs and LaFNPs-CNTs (LaFeO 3 NPs-carbon nanotubes) nanocomposites were successfully prepared. GC (glassy carbon) electrode was modified with LaFNPs and LaFNPs-CNTs for methanol electrooxidation. The electrocatalytic activity of LaFNPs and LaFNPs-CNTs nanocatalysts toward methanol electrooxidation was examined through cyclic voltammetry and chronoamperometry methods. The effect of some experimental factors such as methanol, LaFNPs amounts, electrolyte concentrations and scan rate was studied. The catalytic activity of LaFNPs-CNTs and LaFNPs nanocatalysts was compared with each other. According to the electrochemical investigations, LaFNPs nanocatalyst had a considerable activity for methanol electrooxidation in comparison to LaFNPs nanocatalyst.

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Ultrasonic synthesis of highly dispersed Pt nanoparticles supported on MWCNTs and their electrocatalytic activity towards methanol oxidation

Cited by 101 publications

References 30 publications

Deposition of Monodisperse Platinum Nanoparticles of Controlled Size on Different Supports

Deposition of Monodisperse Platinum Nanoparticles of Controlled Size on Different Supports

The improvement of methanol oxidation using nano-electrocatalysts

Perovskite-Type LaFeO3 and LaFeO3-CNTs Nanocrystals as Active Anode for Methanol Oxidation in Alkaline Solutions

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