Application of amorphous materials for fuel cells

Sistiaga, M.; Pierna, A.R.

doi:10.1016/j.jnoncrysol.2003.08.038

Cited by 28 publications

(13 citation statements)

References 11 publications

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“…5 shows the specific mass activities of various catalysts for MOR in acidic solutions as measured by cyclic voltammometry. The voltammetric features are characteristic of typical Pt-based MOR catalysts [19]. The as-prepared PtFe/C catalyst was noticeably more active than both of the heat-treated and magnetically enhanced catalysts.…”

Section: Resultsmentioning

confidence: 84%

Do magnetically modified PtFe/C catalysts perform better in methanol electrooxidation?

Zeng

Zhao²,

Lee

et al. 2007

Electrochimica Acta

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Section: Resultsmentioning

confidence: 84%

Do magnetically modified PtFe/C catalysts perform better in methanol electrooxidation?

Zeng

Zhao²,

Lee

et al. 2007

Electrochimica Acta

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“…[138] With an increasing time of pretreatment with 48% HF, the Ni 59 Nb 40 Pt 0.6 Sn 0.4 electrode had an increasing current density and more positive onset potential, which is even lower than the polycrystalline Pt. Sistiaga et al started several exploratory works on the electrocatalytic performance of amorphous alloys, i.e., metallic glasses for the methanol oxidation.…”

Section: Methanol and Ethanol Oxidationmentioning

confidence: 93%

“…Sistiaga et al started several exploratory works on the electrocatalytic performance of amorphous alloys, i.e., metallic glasses for the methanol oxidation. [138] With an increasing time of pretreatment with 48% HF, the Ni 59 Nb 40 Pt 0.6 Sn 0.4 electrode had an increasing current density and more positive onset potential, which is even lower than the polycrystalline Pt. Barranco et al found after the HF pretreatment, (NiNb) 99 Pt 0.6 Sn 0.2 Ru 0.2 has a higher electrocatalytic activity at high methanol concentration while at low methanol concentration, (NiNb) 99 Pt 0.6 Sn 0.4 is superior.…”

Section: Methanol and Ethanol Oxidationmentioning

confidence: 93%

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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“…Ni 60 -Nb 40 polyphasic alloys have been recently used as a matrix in new amorphous alloys [8]. These have been alloyed with Pt (1−x) Y x (Y = Ru, Sn, x = 1, 0.6 at.%) metals, and further used as catalyst components for anode materials for the electrochemical treatment of toxic compounds, and for its application in fuel cells [9,10].…”

Section: Introductionmentioning

confidence: 99%