Development of efficient thermoelectric module using bismuth telluride nanoparticles synthesized by microorganisms

2015 Fiscal Year Final Research Report

• Project/Area Number: 25550068
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental conscious materials and recycle
• Research Institution: Osaka University
• Principal Investigator: Ike Michihiko 大阪大学, 工学(系)研究科(研究院), 教授 (40222856)
• Co-Investigator(Kenkyū-buntansha): SODA Satoshi 大阪大学, 大学院工学研究科, 准教授 (30322176) ; KURODA Masashi 大阪大学, 大学院工学研究科, 助教 (20511786) ; OHISHI Yuji 大阪大学, 大学院工学研究科, 助教 (20571558)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 熱電材料 / カルコゲン化ビスマス / セレン / テルル / バイオプロダクション

Outline of Final Research Achievements

Thermoelectric module is a promising energy-production technology which interconvert between thermal and electric energies. Present study tried to synthesize nanoparticles of a thermoelectric material, bismuth chalcogenide, using bacteria. In liquid media containing bismuth (III) and selenite, five bacterial strains synthesized Bi2Se3 nanoparticles of diameter 10-100 nm both inside and outside the cells. In liquid media containing bismuth (III), selenite, and telluride, O. anthropi TI-3 synthesized nanoparticles with elemental ratio ((S+Se+Te)/Bi = 1.88). This study proposed an environmentally friendly option to synthesize thermoelectric material without using high temperature condition.

Free Research Field

環境工学