Electrooxidation of ethylene glycol using gold nanoparticles electrodeposited on pencil graphite in alkaline medium

Etesami, Mohammad; Mohamed, Norita

doi:10.1007/s11426-011-4402-z

Cited by 19 publications

(7 citation statements)

References 54 publications

(66 reference statements)

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“…7a). Moreover, this value is much higher than the irregular Au NCs (2.33), commercial Au electrode (2.16) and previously reported catalysts (Table 1), 7,[51][52][53][54][55][56] showing that the Au NSs have better poisoning-resistant ability and steady-state behaviour for EG oxidation. Fig.…”

Section: Electrocatalytic Performance Of the Au Nssmentioning

confidence: 56%

Shape-controlled electrochemical synthesis of Au nanocrystals in reline: control conditions and electrocatalytic oxidation of ethylene glycol

Chen

Duan

et al. 2017

RSC Adv.

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Gold nanocrystals (NCs) as advanced catalysts towards ethylene glycol (EG) electrooxidation in direct alcohol fuel cells (DAFCs) have some advantages, such as good poisoning-resistance and high electrocatalytic activity. The shape and size control of Au NCs are crucial to their electrocatalytic activity.In this work, the control of morphologies and sizes of prepared Au NCs in reline are systematically investigated by changing electrodeposition conditions: the applied potential, electrodeposition temperature, HAuCl 4 concentration and electrodeposition time. Results show that reline (a deep eutectic solvent (DES), a mixture of choline chloride and urea at the molar ratio of 1 : 2) plays an important part in the nucleation and growth of the star-like Au NCs. This approach for preparing star-like Au NCs in reline does not need any supporting electrolyte and organic solvent, and thus is more environmentally friendly than water as a medium. The electrode modified by the as-prepared Au nanostars (NSs) exhibits a good poisoning-resistance ability and electrocatalytic activity for EG electrooxidation in alkaline media. This strategy is a significant way for shape-controlled synthesis of noble metal nanomaterials in DESs that may have potential applications in fields of electrochemical sensors, electrocatalysis and fuel cells.

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Section: Electrocatalytic Performance Of the Au Nssmentioning

confidence: 56%

Shape-controlled electrochemical synthesis of Au nanocrystals in reline: control conditions and electrocatalytic oxidation of ethylene glycol

Chen

Duan

et al. 2017

RSC Adv.

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“…It was found that in the case of the first reactant, GO-Pd catalyst indicated stereo selectivity exceeding 98%. AuNPs is also known to exhibit interesting catalytic properties [7] in electro-oxidation of methanol [8,9], carbon monoxide [10][11][12], ethylene glycol [13], glycerol [10], benzyl alcohol [10], cyclohexane [10]. It seems interesting to find out how those properties will change when AuNPs are deposited on GO and this subject of the present study.…”

Section: Introductionmentioning

confidence: 93%

Electro-Oxidation of Glucose in Alkaline Media on Graphene Sheets Decorated with Gold Nanoparticles

Wojnicki¹,

Luty–Błocho²,

Dobosz³

et al. 2013

MSA

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In this study the catalytic properties of gold nanoparticles in electro-oxidation process of glucose, were investigated, taking into account, an influence of catalyst composition. Graphene oxide was applied and for electro-oxidation studies of glucose, cyclic voltamperometry was used. It was found that an application of graphene oxide sheets during catalyst synthesis have an influence on gold nanoparticles (AuNPs) size and size distribution. It was confirmed that the application of composite catalyst consisting of graphane-AuNPs significantly changes electro-oxidation of glucose shifting the potential of oxidation to higher positive values and increasing oxidation current.

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“…In 2012, Mohammad and Norita 20 prepared AuNPs on PGE using a fast scan cyclic voltammetry method from the Au precursor. Different sizes of AuNPs were produced on the PGEs by varying the deposition time, scan rate, and number of CV cycles.…”

Section: Nanomaterial‐modified Pge For Use In Electroanalysismentioning

confidence: 99%

Recent Advances in Nanomaterial‐Modified Pencil Graphite Electrodes for Electroanalysis

et al. 2015

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Pencil graphite electrodes (PGEs) have several advantages over other carbon‐based or commercial metal electrodes, including widespread availability, very low cost, and ease of modification. To make the best use of PGEs in electroanalysis, significant recent advances in the development of different nanomaterial‐PGEs have been observed. The literature published up to mid‐2015 is summarized in the present review, with a focus on the various methodologies used to readily modify graphite pencil electrodes using nanomaterials. This review also touches on the surface characterization of these electrodes and their potential applications in a variety of electrochemical detection applications. The review outlines the scope for further research in this area and discusses the importance of surface modifications of conventional PGE electrodes using nanomaterials or a combination of nanomaterials and electroactive polymers.

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Electrooxidation of ethylene glycol using gold nanoparticles electrodeposited on pencil graphite in alkaline medium

Cited by 19 publications

References 54 publications

Shape-controlled electrochemical synthesis of Au nanocrystals in reline: control conditions and electrocatalytic oxidation of ethylene glycol

Shape-controlled electrochemical synthesis of Au nanocrystals in reline: control conditions and electrocatalytic oxidation of ethylene glycol

Electro-Oxidation of Glucose in Alkaline Media on Graphene Sheets Decorated with Gold Nanoparticles

Recent Advances in Nanomaterial‐Modified Pencil Graphite Electrodes for Electroanalysis

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