早稲田大学 · Chemical Engineering
세키네 요시시 교수의 연구실은 에너지 전환과 지속 가능한 화학 공정을 위한 혁신적 촉매 기반 기술 개발에 초점을 맞추고 있습니다. 특히 수소 에너지의 저장 및 수송을 위한 액체 유기 수소 매질(LOHC)의 탈수소화 반응 촉매 기반 기술, 저온에서의 고효율 암모니아 합성, 전기장 유도 촉매 반응을 통한 저온 수소 생산 등 에너지 효율성 향상을 위한 신개념 촉매 시스템을 연구하고 있습니다. 또한, 생물학적 분자 운반 메커니즘과 유전자 프레임시프트 메커니즘 등 생물학적 과정의 기계적 원리를 이해하는 데도 기여하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Abstract Considering the expansion of the use of renewable energy in the future, the technology to store and transport hydrogen will be important. Hydrogen is gaseous at an ambient condition, diffuses easily, and its energy density is low. So liquid organic hydrogen carriers (LOHCs) have been proposed as a way to store hydrogen in high density. LOHC can store, transport, and use hydrogen at high density by hydrogenation and dehydrogenation cycles. In this review, we will focus on typical LOHCs,
To understand the mechanisms of transport for organelles in the axon, we isolated and sequenced the cDNA encoding KIF4 from murine brain, and characterized the molecule biochemically and immunocytochemically. Complete amino acid sequence analysis of KIF4 and ultrastructural studies of KIF4 molecules expressed in Sf9 cells revealed that the protein contains 1,231 amino acid residues (M(r) 139,550) and that the molecule (116-nm rod with globular heads and tail) consists of three domains: an NH2-te
Insertion sequence IS1 has two coding frames, insA and insB, which are essential for its transposition. Here, we show that a frameshifting event in the -1 direction from the 3' end region of the insA frame to an open reading frame (B' frame), extending from the 5' end of the insB frame, is involved in production of the InsA-B'-InsB fusion protein that has IS1 transposase activity. The frameshifting event is likely to have occurred at the sequence AAAAAC where the insA frame overlaps the B' frame
Elucidating the role of metal modification and confined hydrocarbon species in the aromatization of ethylene on zeolite catalysts.
Highly efficient ammonia synthesis at a low temperature is desirable for future energy and material sources. We accomplished efficient electrocatalytic low-temperature ammonia synthesis with the highest yield ever reported. The maximum ammonia synthesis rate was 30 099 μmol g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup> over a 9.9 wt% Cs/5.0 wt% Ru/SrZrO<sub>3</sub> catalyst, which is a very high rate. Proton hopping on the surface of the heterogeneous catalyst played an important role in the react
We investigated four catalytic reactions assisted with an electric field to promote catalytic activity, and we could achieve an effective process for hydrogen production at low temperatures, such as 423 K. In the presence of the electric field, four reactions of steam reforming of ethanol, decomposition of ethanol, water gas shift, and steam reforming of methane proceeded at very low temperature, such as 423 K, where a conventional catalytic reaction hardly proceeded. Conversion of reactant was
A survey on the catalytic nature of Ni-based alloy catalysts in recent years provides a direction for future catalyst development.
