UNIST · Energy
Sang Hoon Joo 교수의 연구실은 나노촉매 및 전기화학적 에너지 변환 소재를 중심으로 연구를 진행하고 있습니다. 특히 루테늄 기반 나노입자 촉매를 활용한 일氧化 반응의 입자 크기 의존성과, 퍼보스카이트 기반 비귀금속 이중기능 전기촉매를 통한 고성능 산소 반응 촉매 개발에 주력하고 있습니다. 또한 2차원 정렬 다공성 실리카 소재의 합성 및 구조 제어를 통해 촉매 지지체 및 에너지 저장 소재의 성능 향상에 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Carbon monoxide oxidation over ruthenium catalysts has shown an unusual catalytic behavior. Here we report a particle size effect on CO oxidation over Ru nanoparticle (NP) catalysts. Uniform Ru NPs with a tunable particle size from 2 to 6 nm were synthesized by a polyol reduction of Ru(acac)(3) precursor in the presence of poly(vinylpyrrolidone) stabilizer. The measurement of catalytic activity of CO oxidation over two-dimensional Ru NPs arrays under oxidizing reaction conditions (40 Torr CO and
Highly active and durable bifunctional oxygen electrocatalysts have been of pivotal importance for renewable energy conversion and storage devices, such as unitized regenerative fuel cells and metal-air batteries. Perovskite-based oxygen electrocatalysts have emerged as promising nonprecious metal bifunctional electrocatalysts, yet their catalytic activity and stability still remain to be improved. We report a high-performance oxygen electrocatalyst based on a triple perovskite, Nd<sub>1.5</sub>
Two-dimensional (2-D) ordered mesoporous silicas were synthesized following the literature synthesis procedures using two different silica sources (tetraethyl orthosilicate and sodium silicate) and poly(ethylene oxide)−poly(propylene oxide)−poly(ethylene oxide) triblock copolymer template under acidic and neutral synthesis conditions. The resultant SBA-15 and MSU−H silicas exhibited highly ordered mesoporous structures and pore sizes in the range from 7.5 to 10 nm. The silicas prepared under aci
