Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys

Feng, Jicheng; Geutjens, Ruben; Thắng, Nguyễn Văn; Li, Junjie; Guo, Xiaoai; Kéri, Albert; Basak, Shibabrata; Galbács, Gábor; Biskos, George; Nirschl, Hermann; Zandbergen, H.W.; Brück, E.; Schmidt‐Ott, A.

doi:10.1021/acsami.7b15441

Cited by 31 publications

(30 citation statements)

References 32 publications

(67 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This year a report was published dedicated to the LaFeSi nanostructure produced by spark ablation of LaFeSi bulk rods. 96 In this attempt, the 6 nm (mean size) produced LaFeSi nanoparticles exhibited a much broader magnetic transition than the bulk counterpart in accordance with the magnetic behavior exhibited by NPs of other magnetocaloric materials. Moreover, they have demonstrated that the NPs' Curie temperature can be tuned by controlling ablation parameters toward room temperature.…”

Section: E La(fesi) 13 Familysupporting

confidence: 69%

“…147 Other exotic spin-lattice related effects were observed while playing with the relative strain between the substrates and La 1Àx Sr x MnO 3 films, such as anomalies in magnetostriction and thermal expansion, electric resistivity with a relevant dependence on film thickness, and the formation of magnetic stripe domains due to inhomogeneities and coexistence of different magnetic phases. [94][95][96][97] Furthermore, the magnetovolume coupling of manganites and cobaltites thin film oxides have been thoroughly studied. Kundys and Szymczak 148 explored the magnetostriction for both kind of thin films as a function of temperature and magnetic field.…”

Section: H Abo 3 Perovskitesmentioning

confidence: 99%

See 1 more Smart Citation

Magnetocaloric materials: From micro- to nanoscale

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: E La(fesi) 13 Familysupporting

confidence: 69%

Section: H Abo 3 Perovskitesmentioning

confidence: 99%

Magnetocaloric materials: From micro- to nanoscale

et al. 2018

View full text Add to dashboard Cite

show abstract

“…This recent report has significant potential that can convert BMGs into MGNs of a wide variety, and therefore could reveal the nanoeffect of MGs as electrocatalysts where BMGs were the primary investigated materials. [52] Copyright 2018, American Chemistry Society. c) The bright field (BF) TEM image and d) the corresponding selected area electron diffraction (SAED) of a nanowire.…”

Section: Top-down Approachmentioning

confidence: 99%

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

Doubek

McMillon‐Brown

et al. 2018

Advanced Materials

View full text Add to dashboard Cite

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...

show abstract

“… 1 − 5 Enormous efforts have been invested in demonstrating the relevant properties of such NPs in myriad fields. 6 − 9 However, many NP synthesis methods are confined to the laboratory scale. Adding interest to industrial market lies in elevating NP production through developing scalable methodologies.…”

Section: Introductionmentioning

confidence: 99%

Cathodic Corrosion of a Bulk Wire to Nonaggregated Functional Nanocrystals and Nanoalloys

Feng¹,

Chen

Sediq³

et al. 2018

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

A key enabling step in leveraging the properties of nanoparticles (NPs) is to explore new, simple, controllable, and scalable nanotechnologies for their syntheses. Among “wet” methods, cathodic corrosion has been used to synthesize catalytic aggregates with some control over their size and preferential faceting. Here, we report on a modification of the cathodic corrosion method for producing a range of nonaggregated nanocrystals (Pt, Pd, Au, Ag, Cu, Rh, Ir, and Ni) and nanoalloys (Pt50Au50, Pd50Au50, and AgxAu100–x) with potential for scaling up the production rate. The method employs poly(vinylpyrrolidone) (PVP) as a stabilizer in an electrolyte solution containing nonreducible cations (Na+, Ca2+), and cathodic corrosion of the corresponding wires takes place in the electrolyte under ultrasonication. The ultrasonication not only promotes particle–PVP interactions (enhancing NP dispersion and diluting locally high NP concentration) but also increases the production rate by a factor of ca. 5. Further increase in the production rate can be achieved through parallelization of electrodes to construct comb electrodes. With respect to applications, carbon-supported Pt NPs prepared by the new method exhibit catalytic activity and durability for methanol oxidation comparable or better than the commercial benchmark catalyst. A variety of AgxAu100–x nanoalloys are characterized by ultraviolet–visible absorption spectroscopy and high-resolution transmission electron microscopy. The protocol for NP synthesis by cathodic corrosion should be a step toward its further use in academic research as well as in its practical upscaling.

show abstract

Magnetic Phase Transition in Spark-Produced Ternary LaFeSi Nanoalloys

Cited by 31 publications

References 32 publications

Magnetocaloric materials: From micro- to nanoscale

Magnetocaloric materials: From micro- to nanoscale

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

Cathodic Corrosion of a Bulk Wire to Nonaggregated Functional Nanocrystals and Nanoalloys

Contact Info

Product

Resources

About