Monolithic Electrodes for Redox Capacitors Developed by Using an Efficient Process

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04762
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 27020:Chemical reaction and process system engineering-related
• Research Institution: Tohoku University (2023); Hokkaido University (2021-2022)
• Principal Investigator: Iwamura Shinichiroh 東北大学, 材料科学高等研究所, 特任准教授 (10706873)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 反応プロセス / ナノ材料 / エネルギーデバイス / 炭素材料 / 化学気相析出法 / モノリス成型 / ナノ粒子担持

Outline of Final Research Achievements

In this study, we attempted to develop a simple process to produce porous carbon monoliths (PCM) uniformly loaded with redox materials, metal or metal oxide, to develop high-performance redox capacitor electrodes. By combining a concentrating process of a gelation intermediate in the sol-gel method and an activation process, micro-order voids and micropores were successfully introduced and structurally controlled in PCM, which enhances to load metal or metal oxide nanoparticles uniformly and increases the surface area, respectively. In addition, a simple chemical vapor deposition process was successfully developed to uniformly load metal or metal oxide nanoparticles by efficiently diffusing their precursor compound into the porous substrate in the gas phase through thermal decomposition.

Free Research Field

化学工学

Academic Significance and Societal Importance of the Research Achievements

モノリス状多孔質炭素の実用化可能な製造プロセスは限られており、高表面積に重要なミクロ孔構造と同時にマイクロオーダーの大きな空隙も制御することは困難である。本研究の成果によりマイクロオーダーの空隙を任意に導入可能とする多孔質炭素モノリスを開発できたため、キャパシタ電極をはじめとする様々な応用分野に利用できることが期待できる。