Field-Ion Microscopy of Ordered Cu–Au Alloy

Son, U. T.; Hren, J. J.

doi:10.1063/1.1660044

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Even though these studies were not focused on catalysis, they proved the feasibility of imaging various Au-based alloys by FIM; alloys which are now used for catalysis applications: Au-Mo [228] for the reverse water-gas shift reaction [229,230] or as N 2 dissociation catalyst for the Haber-Bosch process [231], Au-Pt [224] for CO oxidation [49,232] and selective toluene oxidation [52], Au-Fe [226] for CO oxidation [233] and N 2 dissociation catalyst for the Haber-Bosch process [231], and Au-Cu [225,234] for the water gas-shift reaction [235,236] and CO oxidation [50].…”

Section: Perspectivesmentioning

confidence: 99%

Dynamic Processes on Gold-Based Catalysts Followed by Environmental Microscopies

et al. 2017

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Abstract:Since the early discovery of the catalytic activity of gold at low temperature, there has been a growing interest in Au and Au-based catalysis for a new class of applications. The complexity of the catalysts currently used ranges from single crystal to 3D structured materials. To improve the efficiency of such catalysts, a better understanding of the catalytic process is required, from both the kinetic and material viewpoints. The understanding of such processes can be achieved using environmental imaging techniques allowing the observation of catalytic processes under reaction conditions, so as to study the systems in conditions as close as possible to industrial conditions. This review focuses on the description of catalytic processes occurring on Au-based catalysts with selected in situ imaging techniques, i.e., PEEM/LEEM, FIM/FEM and E-TEM, allowing a wide range of pressure and material complexity to be covered. These techniques, among others, are applied to unravel the presence of spatiotemporal behaviours, study mass transport and phase separation, determine activation energies of elementary steps, observe the morphological changes of supported nanoparticles, and finally correlate the surface composition with the catalytic reactivity.

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Section: Perspectivesmentioning

confidence: 99%

Dynamic Processes on Gold-Based Catalysts Followed by Environmental Microscopies

et al. 2017

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Measurements of relative bond energies in some ordered nickel-based alloys by field-ion microscopy

Taunt

Sinclair

Ralph

1973

Phys. Stat. Sol. (a)

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The field‐ion images from stoichiometric Ni3Fe, Ni3Al and Ni3Mn are analysed in detail on the assumption that the binding of the surface atoms can be described in terms of the nearest neighbour interactions. It is found that this simple approach is capable of yielding useful information on the relative bond energies which is correlated with the ordering behaviour. For Ni3Fe and Ni3Al first nearest neighbour interactions are dominant, whilst for Ni3Mn the second nearest neighbours assume some importance.

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Field-Ion Microscopy of Ordered Cu–Au Alloy

Cited by 2 publications

References 10 publications

Dynamic Processes on Gold-Based Catalysts Followed by Environmental Microscopies

Dynamic Processes on Gold-Based Catalysts Followed by Environmental Microscopies

Measurements of relative bond energies in some ordered nickel-based alloys by field-ion microscopy

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