Tohoku University · 에너지
Xiao Zhang 교수의 연구실은 주로 태양 에너지 변환 및 저장을 위한 첨단 나노소재 개발에 초점을 맞추고 있습니다. 특히 그래피트 질소화물(g-C₃N₄) 기반의 반도체 헤테로구조 및 동질구조를 설계하여 광촉매 및 전기촉매 활성을 극대화하는 데 주력하고 있으며, 페로브스카이트 나노결정체의 안정성 문제를 해결하기 위한 표면 코ating 및 매트릭스 봉착 기술도 개발하고 있습니다. 연구는 에너지 전환과 환경 문제 해결을 위한 실용적이고 지속 가능한 소재 솔루션을 추구합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
This study presents a combined parameter and state estimation algorithm for a bilinear system described by its observer canonical state‐space model based on the hierarchical identification principle. The Kalman filter is known as the best state filter for linear systems, but not applicable for bilinear systems. Thus, a bilinear state observer (BSO) is designed to give the state estimates using the extremum principle. Then a BSO‐based recursive least squares (BSO‐RLS) algorithm is developed. For
Construction of Z-scheme heterojunctions has been considered one superb method in promoting solar-assisted charge carrier separation of carbon-based materials to achieve efficient utilization of solar energy in hydrogen production and CO<sub>2</sub> reduction. One interesting concept in nanofabrication that has become trend recent years is nanoarchitectonics. A heterostructure photocatalyst constructed based on the idea of nanoarchitectonics using the combination of g-C<sub>3</sub>N<sub>4</sub>,
g-C<sub>3</sub>N<sub>4</sub> has been used as a photocatalyst to overcome the issues of environmental crises and energy shortages. Here, red g-C<sub>3</sub>N<sub>4</sub> nanosheets (E<sub>g</sub>: ∼ 1.89 eV) were used as seeds for the edge-epitaxial growth of yellow g-C<sub>3</sub>N<sub>4</sub> (E<sub>g</sub>: ∼ 2.59 eV) to form type II heterostructures. The heterostructures revealed superior photocatalytic activity for enhanced H<sub>2</sub> (3996 μmol g<sup>-1</sup> h<sup>-1</sup>), CO (3.8 μm
