Fabrication and characterization of gold nanoparticles and fullerene-C60 nanocomposite film at glassy carbon electrode as potential electro-catalyst towards the methanol oxidation

Bhavani, Kalli Sai; Anusha, Tummala; Brahman, Pradeep Kumar

doi:10.1016/j.ijhydene.2019.08.005

Cited by 40 publications

(15 citation statements)

References 50 publications

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“…It should be mentioned that the obtained voltammetric data for the investigated catalysts in the presence of 0.1 M glucose, as compared to those presented in Refs. [50,[60][61][62], show that the recorded CV curves do not undergo radical transformations, moreover, they are similar in shape and coincides well with those observed earlier. Generally, two well-distinguished anodic peaks A1 and A2, one at lower potential values located at ca.…”

Section: Resultssupporting

confidence: 89%

“…Most of the studies on a correlation between an Au surface structure and its catalytic activity are concentrated on the electro-oxidation of methanol [49,50], ethanol [51,52], or formic acid [53], but only a few of them are focused on the oxidation of glucose [54,55]. Oxidation of glucose has been of a keen interest, since it can be considered as a renewable fuel in energy conversion systems.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of electro-oxidation of glucose at gold nanoparticles/carbon composites prepared in the presence of halide ions

Upskuvienė¹,

Šimkūnaitė²,

Vaičiūnienė³

et al. 2020

chemija

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In this study, the carbon powder supported gold nanoparticles composites (AuNPs/C) were prepared via the chemical reduction method by employing sodium citrate or a complex mixture of glucose and ascorbic acid as reducing agents in the presence of small amounts of different halide ions (Cl–, Br–, I–). The electrocatalytic activity of the synthesized composites was evaluated for the electro-oxidation of glucose in an alkaline medium using cyclic voltammetry, whereas the morphology and composition of composites were characterized using field emission scanning electron microscopy and inductively coupled plasma optical emission spectroscopy. The electrochemical measurements demonstrate the enhanced electrocatalytic performance of the AuNPs/C composites prepared by the help of different reducing agents coupled with halide ions for the electro-oxidation of glucose as compared to that of composites that were synthesized by the use only of the reducing agents barely. The AuNPs/C composites synthesized with the presence of KCl, KBr or KI additive in the reaction mixture generate the increased glucose electro-oxidation current density values; furthermore, the glucose electro-oxidation potential is shifted to more negative values as compared to those obtained on the synthesized composites without halide additive.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Investigation of electro-oxidation of glucose at gold nanoparticles/carbon composites prepared in the presence of halide ions

Upskuvienė¹,

Šimkūnaitė²,

Vaičiūnienė³

et al. 2020

chemija

View full text Add to dashboard Cite

show abstract

“…Gold nanoparticles and fullerene-C60 modified glassy carbon electrode (AuNP@reduced-fullerene-C60/GCE) was prepared for DMFCs and ESA value was found to be 98 m 2 g À 1 which is not larger than that of GQDs/f-MWCNTs/GCE (119.00 m 2 /g) [34]. This result indicates that the electrocatalyst (GQDs/f-MWCNTs/GCE) in this report demonstrates more electrocatalytic activity towards methanol oxidation.…”

Section: The Comparisons With the Previous Catalysts In The Literaturementioning

confidence: 56%

Efficient Direct‐Methanol Fuel Cell Based on Graphene Quantum Dots/Multi‐walled Carbon Nanotubes Composite

et al. 2020

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Direct‐methanol fuel cells are proton‐exchange fuel cell in which methanol is used as the fuel. The important advantage of these fuel cells is the simplicity of transport and storage of methanol. In this study, methanol fuel cell electrocatalysts including graphene quantum dots (GQDs), functionalized multi‐walled carbon nanotubes (f‐MWCNTs) and GQDs/f‐MWCNTs composite were synthesized. The structures of synthesized electrocatalysts were highlighted by scanning electron microscope (SEM), raman spectroscopy, UV–vis spectroscopy, fourier transform infrared spectroscopy (FTIR), electrochemical impedance spectroscopy (EIS) and x‐ray diffraction (XRD) method. After that, the effective surface areas (ESA) of GQDs, f‐MWCNTs and GQDs/f‐MWCNTs were calculated. Finally, GQDs/f‐MWCNTs composite modified glassy carbon electrode (GQDs/f‐MWCNTs/GCE) showed highest current signals for methanol oxidation than those of comparable GQDs/GCE and f‐MWCNTs/GCE.

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“…With reference to the nature and structure of fullerene such as smallest size among all carbon allotrope and hardest reinforcement nanoparticle, the fabrication of fullerene-based composites using FSP is an effective solution [31][32][33][34][35][36]. Fullerene/aluminum (Al) [37] and fullerene/magnesium (Mg) [38] nanocomposites were fabricated using FSP.…”

Section: Fabrication Techniques For Fullerene-based Nanocompositesmentioning

confidence: 99%

Fabrication and applications of fullerene-based metal nanocomposites: A review

Kumar

Namboodiri

Joshi

et al. 2021

Journal of Materials Research

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Several fabrication methods have been proposed to develop the metal matrix nanocomposites (MMNCs) reinforced by carbon nanomaterials (mostly the nanotubes, and graphene) by means of the liquid-state and the solid-state techniques. The spraying processes, the squeeze casting, the disintegrated melt deposition processes, the milling fabrication, and the friction stir processing have been used to fabricate the composite. However, the MMNCs, containing the fullerenes as reinforcement, are less known, although the properties of these objects with the predominant sp 2 bonding also extend their use in the composites. Fullerenes are hollow carbon molecules in the form of a sphere (buckyballs). Buckyballs can be essentially regarded as graphite layers, i.e., graphene sheets, wrapped into a spherical shape. Considering the staggering cost and limited availability of purified single-walled carbon nanotubes (CNTs) and graphene, fullerenes with a spherical structure offer an interesting alternative to CNTs and graphene since they are available in abundance and at a much feasible cost. Furthermore, fullerenes offer a high degree of purity and maintain their quality even during the subsequent reproduction cycles. Thus currently, the fullerenes are widely investigated and have the potential for various technical applications. A significant potential application of fullerenes would be as reinforcement in metallic alloys used in structural parts. It should be noted that buckyballs, such as C 60 fullerenes, may be considered as fascinating reinforcements in comparison to CNT or graphene, due to their zero-dimensional geometry. They can be easily dispersed and are scarcely damaged during severe mechanical dispersion processes carried out in metal matrix composites. Fullerene has a great impact on Tribology applications due to its lubricating behavior. The spherical morphology and strong intermolecular bonding make fullerene as a lubricant material for industrial applications. This article will showcase in-depth analysis on collective information of fullerene-based nanocomposites.

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Fabrication and characterization of gold nanoparticles and fullerene-C60 nanocomposite film at glassy carbon electrode as potential electro-catalyst towards the methanol oxidation

Cited by 40 publications

References 50 publications

Investigation of electro-oxidation of glucose at gold nanoparticles/carbon composites prepared in the presence of halide ions

Investigation of electro-oxidation of glucose at gold nanoparticles/carbon composites prepared in the presence of halide ions

Efficient Direct‐Methanol Fuel Cell Based on Graphene Quantum Dots/Multi‐walled Carbon Nanotubes Composite

Fabrication and applications of fullerene-based metal nanocomposites: A review

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