2017
DOI: 10.1016/j.electacta.2017.03.002
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Evaluation of reduced-graphene-oxide-supported gold nanoparticles as catalytic system for electroreduction of oxygen in alkaline electrolyte

Abstract: Chemically-reduced graphene-oxide-supported gold nanoparticles with a diameter, of 40-60 nm are considered here as catalytic materials for the reduction of oxygen in alkaline medium in comparison to analogous systems based on conventional Vulcan carbon carriers. Gold nanoparticles are prepared by the chemical reduction method, in which the NaBH4-prereduced Keggin-type phosphomolybdate heteropolyblue acts as the reducing agent for the precursor (HAuCl4). Polyoxometallate (PMo12O403) capping ligands stabilize go… Show more

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Cited by 39 publications
(29 citation statements)
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(128 reference statements)
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“…Proper distribution of molecular active particles of Keggin and Preyssler heteropoly anions in the PAni nanostructures introduces them as excellent candidates for heterogeneous catalysis applications with enhanced performances. 38 The optical properties of "AgNPs-PAni-Keggin" (Fig. 3a) and "AgNPs-PAni-Preyssler" nanocomposites ( Fig.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Proper distribution of molecular active particles of Keggin and Preyssler heteropoly anions in the PAni nanostructures introduces them as excellent candidates for heterogeneous catalysis applications with enhanced performances. 38 The optical properties of "AgNPs-PAni-Keggin" (Fig. 3a) and "AgNPs-PAni-Preyssler" nanocomposites ( Fig.…”
Section: Resultsmentioning
confidence: 99%
“…7 N 2 adsorption/desorption isotherms of (a) "AgNPs-PAni-Keggin" nanocomposite, and (b) "AgNPs-PAni-Preyssler" nanocomposite, along with the inset figure of BJH pore size distribution. Table 6 Parametric results from BET analysis for "AgNPs-PAni-Keggin" and "AgNPs-PAni-Preyssler" nanocomposites N 2 adsorption/desorption "AgNPs-PAni-Keggin" nanocomposite "AgNPs-PAni-Preyssler" nanocomposite BET surface area 38 AgNPs products. IR results conrmed the existence of HPW as dopant anions that facilitated the stabilization, reduction and distribution of spherical AgNPs in the PAni matrix.…”
Section: Resultsmentioning
confidence: 99%
“…Because basic Fig. 6 Cyclic voltammograms recorded for catalytic films of (A) Ag/ GNP800-C, (B) FeCN x /GNP800-C, and (C) AgFeCN x /GNP800-C recorded in 0.1 mol dm −3 KOH (at 100 mV s −1 ) before (dashed lines) and after (solid lines) preconditioning (P) in 0.1 mol dm −3 HClO 4 physicochemical properties of GO samples considered here were described elsewhere [68], we limit our microscopic characterization to the basic TEM image of AgFeCN x /GO800 and present the electrocatalytic performance toward O 2 reduction only in comparison to AgFeCN x /GNP800. As evident from Fig.…”
Section: Consideration Of Graphene Oxide As Supportmentioning
confidence: 99%
“…They also play an important role in catalyzing many organic reactions, such as homogeneous or heterogeneous acid catalysis, redox catalysis, photocatalytic oxidation [33][34][35][36][37].…”
Section: Introductionmentioning
confidence: 99%