A structure investigation of Pt-Co bimetallic catalysts fabricated by mechanical alloying

Lucariello, M.; Penazzi, Nerino; Arca, Elisabetta; Mulas, G.; Enzo, Stefano

doi:10.1016/j.matchemphys.2008.09.055

Cited by 12 publications

(5 citation statements)

References 29 publications

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“…This effect is clearly present in all Ag:Au alloys, but much more pronounced in the nanostate. Deviations from Vegard's rule were also reported for PtCo nanoalloys, 31 PtNi nanoalloys, 32 AuCu nanoalloys, 33 and AgAu nanoalloys. 33 Notably, in the latter case, the as-prepared nanoparticles followed Vegard's rule, but after annealing them at 240/400 1C, a negative deviation was found.…”

Section: 7% For a Content Of 10%)mentioning

confidence: 66%

Nanostructure of wet-chemically prepared, polymer-stabilized silver–gold nanoalloys (6 nm) over the entire composition range

et al. 2015

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Section: 7% For a Content Of 10%)mentioning

confidence: 66%

Nanostructure of wet-chemically prepared, polymer-stabilized silver–gold nanoalloys (6 nm) over the entire composition range

et al. 2015

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“…The small deviation from Vegard's law may be caused by nonideal interactions between metal atoms. [19] Adv. Mater.…”

Section: Communicationmentioning

confidence: 99%

Low‐Temperature Chemical Vapor Deposition Synthesis of Pt–Co Alloyed Nanoparticles with Enhanced Oxygen Reduction Reaction Catalysis

et al. 2016

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Novel Pt-Co alloyed nanocatalysts are generated via chemical vapor deposition-assisted facile one-pot synthesis. The method guarantees highly monodisperse Pt-Co alloy nanoparticles with precise control of metallic compositions within 1 at%. A significant features is that a perfectly alloyed single-crystal structure is obtained at temperatures as low as 500 °C, which is much lower than conventional alloying temperatures.

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“…Simultaneously, it was also found that the face‐centered cubic isomerism of Co preferentially participated in the early stage of the alloying reaction with face‐centered cubic Pt, and the alloying powder obtained post the ball milling operation promoted the transformation of the material's orientation and increased its degree of order after annealing. [ 47 ]…”

Section: Synthetic Methods Of Pt–co Electrocatalystsmentioning

confidence: 99%

“…Simultaneously, it was also found that the face-centered cubic isomerism of Co preferentially participated in the early stage of the alloying reaction with face-centered cubic Pt, and the alloying powder obtained post the ball milling operation promoted the transformation of the material's orientation and increased its degree of order after annealing. [47] In this chapter, the preparation methods of Pt-Co catalysts are classified and summarized the latest research progress on various synthesis methods such as the aqueous solution system reduction, organic solution system reduction, electrochemical reduction, high-temperature thermal reduction, physical vapor deposition, and mechanical ball milling methods. It is also summarized that the morphology and structural design roadmap of Pt-Co catalysts were obtained based on different precursors and synthesis conditions (Figure 6).…”

Section: Mechanical Ball Millingmentioning

confidence: 99%

Pt–Co Electrocatalysts: Syntheses, Morphologies, and Applications

Chen

Liu

et al. 2022

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Pt–Co electrocatalysts have attracted significant attention because of their excellent performance in many electrochemical reactions. This review focuses on Pt–Co electrocatalysts designed and prepared for electrocatalytic applications. First, the various synthetic methods and synthesis mechanisms are systematically summarized; typical examples and core synthesis parameters are discussed for regulating the morphology and structure. Then, starting with the design and structure–activity relationship of catalysts, the research progress of the morphologies and structures of Pt–Co electrocatalysts obtained based on various strategies, the structure–activity relationship between them, and their properties are summarized. In addition, the important electrocatalytic applications and mechanisms of Pt–Co catalysts, including electrocatalytic oxidation/reduction and bifunctional catalytic reactions, are described and summarized, and their high catalytic activities are discussed on the basis of their mechanism and active sites. Moreover, the advanced electrochemical in situ characterization techniques are summarized, and the challenges and direction concerning the development of high‐performance Pt–Co catalysts in electrocatalysis are discussed.

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A structure investigation of Pt-Co bimetallic catalysts fabricated by mechanical alloying

Cited by 12 publications

References 29 publications

Nanostructure of wet-chemically prepared, polymer-stabilized silver–gold nanoalloys (6 nm) over the entire composition range

Nanostructure of wet-chemically prepared, polymer-stabilized silver–gold nanoalloys (6 nm) over the entire composition range

Low‐Temperature Chemical Vapor Deposition Synthesis of Pt–Co Alloyed Nanoparticles with Enhanced Oxygen Reduction Reaction Catalysis

Pt–Co Electrocatalysts: Syntheses, Morphologies, and Applications

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