ISIS Neutron and Muon Source Data Journal

Structures and microscopic miscibility for nanoparticles of palladium-ruthenium alloys

Abstract: We are proposing 4 days of beamtime on GEM to conduct the experiment on 10 alloy nanoparticles; PdxRu1-x (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1) and PdRuM (M = Rh, Pt, Ir). We have found that these alloys are immiscible in bulk scale but form solid solutions in nanometer scale by using a scanning transmission microscope with an energy-dispersive X-ray analysis. These alloys are expected to be high-performance and low-cost catalysts to remove CO and NOx in exhaust gas of cars. The diffraction patterns and derived pair-distribution functions will provide information on the miscibility in an atomic scale. The large difference between the neutron scattering cross sections of Pd and Ru and the high neutron intensity of GEM are keys in the present experiment. The problems pointed out in the previous rejected proposal have been resolved, i.e., sample mass: 100 mg to 500 mg, PVP: 30% to 10 %.

Principal Investigator: Professor Osamu Yamamuro
Experimenter: Dr Dongshuang Wu
Experimenter: Professor Hiroshi Kitagawa
Experimenter: Professor Hirokazu Kobayashi
Local Contact: Professor David Keen
Experimenter: Dr Kohei Kusada
Experimenter: Dr Hiroshi Akiba

DOI: 10.5286/ISIS.E.RB1710281

ISIS Experiment Number: RB1710281

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Osamu Yamamuro et al; (2017): Structures and microscopic miscibility for nanoparticles of palladium-ruthenium alloys, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710281

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