Particle size effects of sulfonated graphene supported Pt nanoparticles on ethanol electrooxidation

Sun, Chia‐Liang; Tang, Jui-Shiang; Brazeau, Nicolas; Wu, Jhing-Jhou; Ntais, Spyridon; Yin, Chung-Wei; Chou, Hung‐Lung; Baranova, Elena A.

doi:10.1016/j.electacta.2014.12.099

Cited by 50 publications

(27 citation statements)

References 72 publications

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“…Pt nanoparticles were synthesized using the polyol method reported in detail elsewhere [24][25][26][27]. In short, 0.4652 g PtCl 4 was dissolved in 50 mL ethylene glycol.…”

Section: Preparation Of Pt Colloidal Solutionmentioning

confidence: 99%

“…Graphene oxide powders were prepared following Staudenmaier's method and reduced to graphene powders by annealing at 1050 ∘ C under an argon atmosphere. 20 mg of graphene powders was mixed with the Pt colloidal solutions in a 40 mL solution containing 2 M sulfuric acid and ethylene glycol [25][26][27]. The volume ration between sulfuric acid and ethylene glycol is 1 to 1.…”

Section: Deposition Of Pt Nanoparticles On Graphenementioning

confidence: 99%

“…The catalyst ink for electrochemical measurement was prepared with the Pt-graphene powders. 3 mL deionized water, 2 mL ethanol, 60 L Nafion, and 6 mg Pt-graphene powders were sonicated to make the ink [25][26][27]. Potentiostat/galvanostat (CHI 405A) was used for electrochemical measurements.…”

Section: Electrode Preparation and Electrochemical Measurementsmentioning

confidence: 99%

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Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide

Sun

Lai

et al. 2015

Journal of Nanomaterials

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The electrochemical detection of hydrogen peroxide (H2O2) has attracted much attention recently. Meanwhile, the size of nanoparticles which significantly influences electrocatalytic activity is crucial for electrocatalysts. Hence, we prepared five different size-selected Pt/graphene-modified glassy carbon (GC) electrodes to characterize H2O2level via electrochemical measurements. During the preparation of the nanocomposites, size-selected Pt nanoparticles (NPs) with the mean diameter of 1.3, 1.7, 2.9, and 4.3 nm were assembled onto the graphene surfaces. The electrochemical measurement results are size-dependent for Pt NPs when sensing H2O2. When all cyclic voltammogram results from various electrodes are compared, the Pt-1.7 nm/G-modified GC electrode has the highest reduction current, the best detection limit, and the best sensitivity.

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“…Pt nanoparticles were synthesized using the polyol method reported in detail elsewhere [24][25][26][27]. In short, 0.4652 g PtCl 4 was dissolved in 50 mL ethylene glycol.…”

Section: Preparation Of Pt Colloidal Solutionmentioning

confidence: 99%

Section: Deposition Of Pt Nanoparticles On Graphenementioning

confidence: 99%

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Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide

Sun

Lai

et al. 2015

Journal of Nanomaterials

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“…Finally, the cured composite catalysts are prepared after drying and calcining. 24 Sun et al 25 prepared five different nanoparticles of Pt/sulfonated graphene (Pt/sG) as anode electrocatalysts on alkaline direct ethanol fuel cell by the sol-gel method. The different particle diameters of the electrocatalysts were 1.7 nm, 2.5 nm, 3.5 nm, 4.4 nm, 13.9 nm, respectively ( Table 1).…”

Section: Sol-gel Methodsmentioning

confidence: 99%

Research Progress of Preparation Methods of Graphene Nanocomposites for Low-Temperature Fuel Cells and Lithium-Ion Batteries

Wang¹,

Zhou²,

Zhu³

et al. 2016

Kem. Ind.

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Because of its unique two-dimensional structure, huge specific surface area, high electrical conductivity, and other excellent performances, graphene has shown great potential for application in catalysis, electronics, sensors, energy storage, and other areas. Especially, graphene nanocomposites have been found to be promising catalyst support for low-temperature fuel cells, and as anode nanomaterials for high reversible capacity and excellent rate capability for lithium-ion batteries, which has triggered a new round of research hotspot. Preparation methods of graphene nanocomposites mainly for low-temperature fuel cells are reviewed. Particularly, the research progress and principles of physical preparation methods (molecular beam epitaxy), chemical preparation methods (chemical reduction, electrochemical deposition and hydrothermal/solvothermal methods, etc.) and high-energy ball milling are summarized. Research outlook of graphene nanocomposites for low-temperature fuel cells are prospected.

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“…Conforme listado na Tabela 3, verificou-se que o tamanho de cristalito e as tensões internas das nanopartículas não foram modificados com o aumento de concentração de Pt. Estes resultados corroboram a hipótese de afinidade Figura 23) em comparação com outros materiais na literatura[161][162][163]. Destaca-se, portanto, a contribuição das interações metalsuporte favorecidas pela presença dos defeitos introduzidos nas folhas.…”

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Síntese e processamento de óxido de grafeno reduzido: abordagens no desenvolvimento de eletrocatalisadores suportados para oxidação de etanol

Cordeiro¹

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Aos meus pais, Carlos e Ivani Cordeiro, pela liderança e formação, pelo apoio e carinho. Ao meu irmão, Lucas Cordeiro, pelo companheirismo e incentivo. À Dra. Dolores Lazar, pela orientação e pelos conhecimentos transmitidos durante o desenvolvimento deste trabalho. Ao Dr. Almir Neto, pela co-orientação e pelos conhecimentos transmitidos durante o desenvolvimento deste trabalho. Ao Dr. Valter Ussui, pela colaboração e pelas contribuições acadêmicas. Ao Dr. Ricardo Piasentin, pela colaboração e pelas contribuições acadêmicas. Ao Dr. Nelson de Lima, pela colaboração e pelas contribuições acadêmicas.

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Particle size effects of sulfonated graphene supported Pt nanoparticles on ethanol electrooxidation

Cited by 50 publications

References 72 publications

Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide

Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide

Research Progress of Preparation Methods of Graphene Nanocomposites for Low-Temperature Fuel Cells and Lithium-Ion Batteries

Síntese e processamento de óxido de grafeno reduzido: abordagens no desenvolvimento de eletrocatalisadores suportados para oxidação de etanol

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