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Tomokazu Yamamoto Last modified date：2024.04.26

Assistant Professor / Faculty of Engineering


Other Organization
The Ultramicroscopy Research Center


Homepage
https://kyushu-u.elsevierpure.com/en/persons/tomokazu-yamamoto
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The Ultramicroscopy Research Center (URC), Kyushu University .
Academic Degree
PhD(Kyushu University, Japan)
Country of degree conferring institution (Overseas)
No
Field of Specialization
Electron microscopy, Materials Science, Catalyst chemistry
Total Priod of education and research career in the foreign country
00years00months
Research
Research Interests
  • 1. Electron tomography for nanomaterials
    2. Alloy nanoperticle catalysts
    3. In-situ TEM observation of nanoparticle catalysts under reaction gas atomosphere
    4. Automated electron microscopy analysis with machine learning
    keyword : Electron microscopy, tomography, operand observation, machine learning, nanoalloy catalyst
    2021.04～2026.03.
Academic Activities
Papers
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1. Kohei Kusada, Tomokazu Yamamoto, Takaaki Toriyama, Syo Matsumura, Katsutoshi Sato, Katsutoshi Nagaoka, Kenji Terada, Yasuyuki Ikeda, Yoshinari Hirai, Hiroshi Kitagawa, Nonequilibrium Flow-Synthesis of Solid-Solution Alloy Nanoparticles: From Immiscible Binary to High-Entropy Alloys, JOURNAL OF PHYSICAL CHEMISTRY C, 10.1021/acs.jpcc.0c08871, 125, 1, 458-463, 2021.01, Solid-solution alloy nanoparticles (NPs), where the constituents mix at the atomic level, show a variety of attractive properties due to their tunable electronic structures. However, it is still difficult to stably synthesize them, particularly nonequilibrium alloys that consist of combinations immiscible in the bulk. Here, we first report the successful syntheses of solid-solution alloy NPs including PdRu and PdRuIr, which are immiscible in the bulk, and of IrPdPtRhRu high-entropy alloy NPs through a continuous-flow reactor providing a high productivity with high reproducibility. The designed solvothermal flow reactor enabled us to use a lower alcohol as a reductant that cannot be applied in a batch synthesis for these NPs..
Presentations
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Membership in Academic Society
  • The Japanese Society of Microscopy
  • The Japan Institute of Metals and Materials
  • Catalysis Society of Japan


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