Synthesis of Novel Metallic Phase Nanoparticles and Development of Their Catalysis

2018 Fiscal Year Final Research Report

• Project/Area Number: 16H03826
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: Kyoto University
• Principal Investigator: Teranishi Toshiharu 京都大学, 化学研究所, 教授 (50262598)
• Research Collaborator: SAKAMOTO masanori ; SATO ryota
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: ナノ粒子 / 電子構造 / パラジウム / リン / 合金 / 局在表面プラズモン共鳴

Outline of Final Research Achievements

This research aims at the synthesis of novel metallic phase nanoparticles with excellent properties, compared with the noble metal nanoparticles, by tuning the electronic structures. The Pd-P metal compound nanoparticles were successfully synthesized by introducing the element P, which has the similar electron negativity with the element Pd, into the Pd nanoparticles. Then, the Pd-base metal alloy nanoparticles was synthesized by the pseudo-galvanic replacement reaction of the Pd-P nanoparticles with various base metal ions. Furthermore, it was demonstrated that the B2-Pd-base metal alloy nanoparticles (e.g., B2-PdIn) possessing the similar band structures with group 11 elements showed the localized surface plasmon resonance in the visible region.

Free Research Field

無機合成化学

Academic Significance and Societal Importance of the Research Achievements

これまでに得ることができなかった貴金属と卑金属からなる新たな合金ナノ粒子の合成法を開発した。また、これまでに可視領域に局在表面プラズモン共鳴吸収を示す球状無機ナノ粒子として、金・銀・銅ナノ粒子以外の金属ナノ粒子があることを発見し、そのメカニズムを明らかにした。