Synthesis of PtCu3 bimetallic nanoparticles as oxygen reduction catalysts via a sonochemical method

Gümeci, Cenk; Cearnaigh, Deóis Ua; Casadonte, Dominick J.; Korzeniewski, Carol

doi:10.1039/c2ta00957a

Cited by 50 publications

(41 citation statements)

References 62 publications

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“…Doubek et al reported an ECSA of ≈20 m 2 Ptg −1 for nanoporous nanorods, [12] Gumeci et al ≈20-30 m 2 Ptg −1 for sonochemically prepared nanoparticles, [41] Kolla and Smirnova Adv. Doubek et al reported an ECSA of ≈20 m 2 Ptg −1 for nanoporous nanorods, [12] Gumeci et al ≈20-30 m 2 Ptg −1 for sonochemically prepared nanoparticles, [41] Kolla and Smirnova Adv.…”

Section: Orrmentioning

confidence: 99%

“…Doubek et al reported an ECSA of ≈20 m 2 Ptg −1 for nanoporous nanorods, [12] Gumeci et al ≈20-30 m 2 Ptg −1 for sonochemically prepared nanoparticles, [41] Kolla and Smirnova Adv. a) Reported values of onset potential and current density for ORR in RDE experiments from references, a (PdCuSi), [125] b (Pd-NiB/C), [55] c (Ni59Nb40PtxM1-x (M = Ru, Sn)), [126] d (Pt 42.5 Cu 27 Ni 9.5 P 21 ), [12] e (PtCu 3 ), [41] f (PtIrCo/C), [57] g (AgCu). 2019, 31, 1802120 Figure 13.…”

Section: Orrmentioning

confidence: 99%

“…[12,37,[39][40][41] The surface chemistry activity of an electrocatalyst is also linked to the structural stability and corrosion of the surface. [12,37,[39][40][41] The surface chemistry activity of an electrocatalyst is also linked to the structural stability and corrosion of the surface.…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Doubek

McMillon‐Brown

et al. 2018

Advanced Materials

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transformers [2] and load bearing applications. [3] In the last few decades, the study of nanomaterials has become a central focus in nanoscience and nanotechnology. [4] In fact, many studies have shown that with reduction in size, nanomaterials display novel electrical, mechanical, chemical and optical properties, which are largely believed to be the result of surface and quantum confinement effects. [4,5] Remarkably, this trend has found traction in the metallic glass field where metallic glasses nanostructures (MGNs) demonstrate an important role in many applications such as light harvesting, [6] photovoltaic, [7] biomedical, [8] magneto-optical, [9] organic synthesis, [10] lithium-ion batteries [11] and electrocatalysis. [12] Recently, MGNs are receiving increased attention due to their distinguished performance, such as high activity and long term stability in electrocatalytic reactions. [12,13] Although several review papers have already covered the topic of nanopatterning of bulk metallic glasses (BMGs), [14][15][16] the correlation between recent synthetic methods and electrocatalytic applications for MGNs has not been thoroughly addressed. Moreover, there is currently no review that unites MGNs synthesized from different approaches (top-down and bottom-up) with conventional electrochemical reactions. Therefore, in this review our mission is to: 1) present a focused perspective on the latest fabrication techniques of MGNs toward the pursuit of novel electrocatalysts and electrodes; 2) highlight recent advances in computational screening and predictions that could be applied toward new metallic glass electrocatalyst discovery; and 3) report distinct advancements in electrocatalytic applications related to MGNs by creating a comprehensive discussion for commonly employed kinetic parameters and their connection with the unique material structure. Finally, as the first progress report on the metallic glass based electrocatalysts, we will also highlight some of the challenges that need to be addressed toward future progress in this field.BMGs are those metallic glasses (MGs) that can be made in 'bulk' scale with good glass forming abilities, [17] representing a versatile platform for many applications. To date, a wide range of BMG-forming alloys have been developed, including Zr-, [18] Fe-, [19] Cu-, [20] Ni-, [21] Ti-, [22] Mg-, [23] Pd-, [24] Au-, [25] and Pt-based compositions. [26] Moreover, the increased disorder brought by the higher degree of multinary systems is believed to contribute to improving the glass formation. [27] The evolution to multicomponent alloys of the most recent MG studies has also made them natural candidates for catalysis. The amorphous multinary Recent advances in metallic glass nanostructures (MGNs) are reported, covering a wide array of synthesis strategies, computational discovery, and design solutions that provide insight into distinct electrocatalytic applications. A brief introduction to the development and unique features of MGNs with an overview of top-down and bottom-up sy...

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Section: Orrmentioning

confidence: 99%

“…Doubek et al reported an ECSA of ≈20 m 2 Ptg −1 for nanoporous nanorods, [12] Gumeci et al ≈20-30 m 2 Ptg −1 for sonochemically prepared nanoparticles, [41] Kolla and Smirnova Adv. a) Reported values of onset potential and current density for ORR in RDE experiments from references, a (PdCuSi), [125] b (Pd-NiB/C), [55] c (Ni59Nb40PtxM1-x (M = Ru, Sn)), [126] d (Pt 42.5 Cu 27 Ni 9.5 P 21 ), [12] e (PtCu 3 ), [41] f (PtIrCo/C), [57] g (AgCu). 2019, 31, 1802120 Figure 13.…”

Section: Orrmentioning

confidence: 99%

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Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Doubek

McMillon‐Brown

et al. 2018

Advanced Materials

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“…A home-made reversible hydrogen electrode (RHE) was used as a reference electrode. 22,23 Prior to each experiment, a glassy carbon electrode was polished to a mirror finish using a 0.05 μm alumina suspension, followed by rinsing with ultrapure water to remove alumina particles from the surface. Fe-N-C catalyst ink was prepared by ultrasonically (Misonix, Sonicator 3000) mixing 4 mg of catalyst powder in 150 μL ethanol and 50 μL ionomer (5 wt %).…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Effect of pyrolysis pressure on activity of Fe–N–C catalysts for oxygen reduction

et al. 2015

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Iron and nitrogen doped carbon, Fe-N-C, catalysts are synthesized by high pressure pyrolysis of Ketjenblack carbon, melamine and iron acetate precursor mixture in a closed, reusable scale-up stainless steel reactor. The effects of precursor loading with constant precursor ratios on obtained pressure, nitrogen retention and oxygen reduction reaction (ORR) activities are studied. The results indicate that higher precursor loading increases the gas phase pressure and improves nitrogen retention and ORR activity. Furthermore, a relationship is found between active site density, nitrogen retention and pressure that suggests that the limiting reaction may be an adsorption process driven via high pressure of volatile intermediates from the melamine. Figure 7. a) Fuel cell polarization curves of Fe-N-C samples obtained in a single cell (5 cm 2 ) on air with 2.5 bar back pressure. The loadings are 2.4-3.2 mg cm -2 and normalized to 3 mg cm -2 and b) fuel cell polarization curves of 3.5 g Batch with 2.5 back pressure in air and 0.5 bar backpressure in O2. The loadings are 3 mg cm -2 .Polarization curves were obtained at 100% RH using 211 Nafion®, 55 wt% 1100 EW and 25BC GDL.

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“…5 The Pt "shell" could be in different forms, like: a Pt-rich surface layer by electrochemical de-alloying 20 or annealing 21 or acid leaching; 14 a Pt overlayer by seedbased chemical reduction;…”

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confidence: 99%

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

et al. 2017

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A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: nanostructure, activity, mechanism and carbon support in PEM fuel cells. Journal of Materials Chemistry A, 5 (5). pp. 1808 -1825 . ISSN 2050 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/40957/1/Journal%20of%20Materials%20Chemistry%20A %EF%BC%88C6TA08580F%20-%20corrected%20proofs%20-final%EF%BC%89.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the University of Nottingham End User licence and may be reused according to the conditions of the licence. For more details see: http://eprints.nottingham.ac.uk/end_user_agreement.pdf A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with electronic notes attached -do not change the text within the PDF file or send a revised manuscript. Corrections at this stage should be minor and not involve extensive changes. All corrections must be sent at the same time.Please bear in mind that minor layout improvements, e.g. in line breaking, table widths and graphic placement, are routinely applied to the final version.We will publish articles on the web as soon as possible after receiving your corrections; n no late corrections will be made. The sluggish rate of the oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells has been a major challenge. Significantly increasing efforts have been made worldwide towards a highly active ORR catalyst with high durability. Among all the catalysts exploited, Pt electrocatalysts are still the best in terms of a comprehensive evaluation. The investigation of Pt-based ORR catalysts is necessary for a practical ORR catalyst with low Pt content. This paper reviews recent progress in the studies of the mechanism, nanostructure, size effect and carbon supports of Pt electrocatalysts for the ORR. The importance of the size and structure control of Pt ORR catalysts, related with carbon support materials, is indicated. The potential methods for such control are discussed. The progress in theoretical studies and in situ catalyst characterization are also discussed. Finally, challenges and future developments are addressed.

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Synthesis of PtCu3 bimetallic nanoparticles as oxygen reduction catalysts via a sonochemical method

Cited by 50 publications

References 62 publications

Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Recent Advances in Metallic Glass Nanostructures: Synthesis Strategies and Electrocatalytic Applications

Effect of pyrolysis pressure on activity of Fe–N–C catalysts for oxygen reduction

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: Nanostructure, activity, mechanism and carbon support in PEM fuel cells

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