Research

(1) Surface Chemistry of Carbon Nanomaterials

Surface chemistry of carbon nanomaterials is the key step for preparation of stable suspensions of carbon nanotubes and graphene sheets, for modification of the surface properties of carbon nanomaterials, and for fabrication of heterojunctions for carbon nanomaterial-based optoelectronics. We are aimed to modify carbon nanomaterials using conjugated molecules or polymers covalently or non-covalently. The final goal is to improve the processabilityof carbon nanomaterials in solutions, to fabricate heterojunctions, and to explore advanced applications of carbon nanomaterials based on photoinducedelectron transfer at the interfaces. The following image shows grafting P3HT on the surfaces of RGO and the dual PL emissions of the RGO-g-P3HT composite (Chem. Sci.2014, 5, 3130).

(2) Assembly Structures of Carbon Nanomaterials

The assembly structures of carbon nanomaterials determine their macroscopic properties and their application fields. We are aimed to assmebly carbon materials into two-dimensional (2D) films or three-dimensional porous structures. 2D carbon-based films not only show potential application as transparent conductive electrode for optoelectronic devices, but also exhibit additional functionalities by incorpation of a responsible component. 3D porous structures of carbon nanomaterials are foundmentally important for high-performance electrode materials, catalyst carriers, and the framework of hybrid materials. The following images show transparent macroporous thin film and versatile applications as a conducting platform (Adv. Funct. Mater. 2015, 25, 4334–4343).

 

(3) Applications of Carbon Nanomaterials

Carbon nanomaterials have excellent properties including high specific surface area, high electrical conductivity, chemical stability, and versatile processability. Such properties indicate that carbon nanomaterials are of great potential in energy storage and conversion devices, and environment science as well. In our research, we are aimed to prepare carbon-based hybrid materials. By controlling the interfaces and the assembly structures of the hybrids, we explore the applications of carbon-based hybrid materials as electrode material in supercapacitors and batteries, and as catalyst in environment science (Nat. Commun. 2016, 7, 10601.).