Nanocomposite thin layers of in situ-embedded bismuth nanoparticles in a polymer matrix: synthesis and size-dependent thermal properties

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13643
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials engineering
• Research Institution: Konan University
• Principal Investigator: AKAMATSU Kensuke 甲南大学, フロンティアサイエンス学部, 教授 (60322202)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: ナノコンポジット / 金属ナノ粒子 / 潜熱蓄熱

Outline of Final Research Achievements

Thin polymer layers consisting of a polyimide matrix with bismuth nanoparticles were synthesized in situ by hydrogen reduction using an ion-doped precursor. The mean nanoparticle size could be systematically controlled from 12 to 25 nm simply by variation of the heat treatment temperature. These relatively large nanoparticles have a narrow size distribution with a standard deviation of almost 10%. The melting temperature of the embedded bismuth nanoparticles decreased as the particle size decreased, which suggests that the nanocomposite could be utilized as a phase change composite material.

Free Research Field

ナノ材料化学