Development of oxygen defect and surface termination controlled metal oxide nanoparticles as an alternative catalyst to platinum for fuel cells

2014 Fiscal Year Final Research Report

• Project/Area Number: 25886001
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Nanomaterials chemistry
• Research Institution: Tohoku University
• Principal Investigator: SHUN Yokoyama 東北大学, 環境科学研究科, 助教 (30706809)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Keywords: 酸化物 / 金属 / ナノ粒子 / 終端面 / 燃料電池触媒

Outline of Final Research Achievements

In this research, oxygen defect and surface termination of metal oxide nanoparticles with high durability are controlled in order to improve their catalytic activity for fuel cells. In addition, synthesis of metal-metal oxide core- shell nanoparticles is examined to enhance durability of metal nanoparticles with high catalytic activity. Although metal oxide nanoparticles surface is successfully controlled to be metal surface termination, the catalytic activity of the oxide nanoparticles is low compared with commonly-used Pt nanoparticles supported on carbon black. For metal-metal oxide core- shell nanoparticles, metal nanoparticle syntheses and formation of metal oxide shell are achieved. However, improvement of the metal oxide shell formation is required because there are many deficiencies in metal oxide shells.

Free Research Field

材料科学