Kyoto University

Kyushu University

Oita University

Tomokazu Yamamoto

Hiroshi Kitagawa

Kohei Kusada

Syo Matsumura

Katsutoshi Nagaoka

Katsutoshi Sato

Hirokazu Kobayashi

Xuan Quy Tran

An alloy composed of three or more types of elements, wherein all the standard deviation of distribution in the alloy of each element constituting the alloy are 15 atomic % or less provides a novel alloy composed of three or more types of elements and having a high solid solution uniformity.

Alloy of at least three metal elements, aggregate of alloy nanoparticles, and catalyst

The present invention provides an alloy fine particle including palladium and ruthenium, the alloy fine particle including at least one first phase in which the palladium is more abundant than the ruthenium and at least one second phase in which the ruthenium is more abundant than the palladium, the at least one first phase and the at least one second phase being separated by a phase boundary, the palladium and the ruthenium being distributed in the phase boundary in such a manner that the molar ratio of the palladium and the ruthenium continually changes, a plurality of crystalline structures being present together in the phase boundary.

Alloy microparticles and method for producing same, alloy microparticle cluster, catalyst, and method for producing same

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Fukuoka, Japan

Tomokazu Yamamoto