Tokyo Institute of Technology · 에너지
아카이라 야마다치 교수의 연구실은 주로 고온 내성 소재 및 생체모방 촉매 분야에서 활동하고 있습니다. 특히 산화마그네슘-탄소, 알루미나-탄소 등 탄소를 포함한 내열재료의 자가복구 기반 메커니즘을 규명하고 있으며, 알루미늄 실리카 카바이드(Al₄SiC₄)와 같은 신소재의 합성 및 내수성 특성에 대한 연구를 진행하고 있습니다. 또한, 광합성의 산소 발생 복합체를 모방한 망간 산화물 기반 촉매를 활용한 수소산화 반응에서의 프로톤-전자 이동 제어 기술도 개발 중입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Manganese oxides have been extensively investigated as model systems for the oxygen-evolving complex of photosystem II. However, most bioinspired catalysts are inefficient at neutral pH and functional similarity to the oxygen-evolving complex has been rarely achieved with manganese. Here we report the regulation of proton-coupled electron transfer involved in water oxidation by manganese oxides. Pyridine and its derivatives, which have pKa values intermediate to the water ligand bound to mangane
Self‐repairing function is observed in carbon‐containing refractory such as MgO–C, Al 2 O 3 –C, and so forth. Non‐oxides such as pure metallic, alloys, carbides, and nitrides are intentionally added to the refractory composition to bring about this function. As a basis of the development of a self‐repairing refractory, the self‐repairing mechanism in the carbon‐containing refractory is described.
The synthesis process and the formation mechanism of Al4SiC4 were investigated using Al, Si, and C as starting materials. Properties such as hydration resistance of the synthesized Al4SiC4 were examined. SiC and Al4C3 begin to form from about 800°C and 900°C, respectively. When the temperature is above 1300°C, both products further react with each other to form Al4SiC4. With increasing temperature and time, the formation ratio of Al4SiC4 increases. The addition of Al2O3 can facilitate the format
