
Research
We are conducting research into functional devices that utilize the characteristics of organic-inorganic hybrid materials.
Photocatalysis
We are developing functional materials that realize chemical conversion reactions using sunlight. Water splitting: Development of complete water splitting and visible/near infrared light responsive materials using organic-inorganic hybrid materials Hydrogen peroxide synthesis: Development of sunlight responsive hydrogen peroxide production materials using organic semiconductor materials Carbon dioxide reduction: Carbon dioxide reduction reaction using new functional organic materials
Dye-sensitized photocatalyst
Renewable hydrogen production is a sustainable method for the development of next-generation energy technologies. Utilizing solar energy and photocatalysts to split water is an ideal method to produce hydrogen. We are studying hydrogen production from photocatalytic water splitting using organic–inorganic composite-based photocatalysts.
Photoelectrochemistry
Development of high-speed charge separation and transport devices using organic/inorganic interfaces
Photocatalyst
Dye-sensitized catalyst
We are using organically modified materials to create photocatalysts that can respond to visible to near-infrared light.
Photocatalyst
Hydrogen peroxide production
Direct synthesis processes of anthraquinones, the photocatalytic approach does not use hazardous H 2 and requires only earth-abundant water and O 2 as raw materials, renewable sunlight as energy supply, and semiconductors as photocatalysts. In particular, we are developing a photocatalytic system that can generate hydrogen peroxide using visible light.

グラフェン構造
Novel charge mediator
The development of materials that can transfer electric charges quickly is important in electrochemistry and catalytic chemistry.
The reduced graphene nanoribbons played the role of a mediator that promotes charge separation between photocatalysts and that effective hydrogen production in water.

Graphene moiety
Graphene moiety synthesis
Acenes are a class of aromatic hydrocarbons composed of linearly fused benzene rings. Noteworthy features of these molecules include their extended flat structure and the narrow gap between the HOMO and LUMO energy levels. However, the preparation of larger acenes, those that are larger than pentacene, has been challenging. We are developing novel synthetic acene synthesis methods.
