Synthesis of three-dimensional architecture composed of two-dimensional nanowalls

2019 Fiscal Year Final Research Report

• Project/Area Number: 18K14054
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 27030:Catalyst and resource chemical process-related
• Research Institution: Shinshu University
• Principal Investigator: Takimoto Daisuke 信州大学, 先鋭領域融合研究群先鋭材料研究所, 助教(特定雇用) (60806529)
• Project Period (FY): 2018-04-01 – 2020-03-31
• Keywords: コアシェル構造ナノシート / 三次元構造体

Outline of Final Research Achievements

In this study, a new electrocatalyst with a three-dimensional architecture composed of a framework of NiO nanowalls was prepared. The electrocatalytic activity of three-dimensional architecture was higher than that of nanoparticles. The result strongly indicates that the 3D structure with 2D nanowall is a superior design for electrocatalyst. Considering the diffusion path of evolved molecules, the enhanced activity could also be attributed to the meso pore nature of 3D-NiO.

Free Research Field

触媒・資源化学プロセス，無機材料工学

Academic Significance and Societal Importance of the Research Achievements

新しい概念として活性種のみ・三次元構造で電極触媒を構築できたことにより，ナノ粒子と担体という設計方法から脱却した設計指針を立てることができる。水電気分解などガス生成に適した触媒構造であることがわかり，将来のエネルギー関連の問題解決に貢献できる見込みがある。