The Investigation on Multi-Functional Graphene Moieties: the Synthesis, Assembly, and Functionalization on Energy Storage and Conversion Applications(1/3)

The recent works with graphene for the clean energy-related applications have been found to block the practical usage due to the uncontrollable and complex nanostructure and chemical moieties. For example, the extremely high surface area of graphene are expected to ideal materials in an energy storage device like supercapacitor and LIB; however, it suddenly found that the lots of exposed edge state and versatile, functional groups intensively participate the electrochemical reaction that in turn facilitate the unstable and even degradation on device performance. Another issue is graphene shows lower energy density when restacking thus hinder practical use. All for these yet to be addressed due to the lack of controllable route for manipulation of graphene moieties (like macro/atomic structure, edge-state, selective functional groups, etc.) so as unable to realize their board applications.In this proposal, we develop a series of strategy and research protocol aim to manipulate graphene by inheriting the merits of both outperformed properties of graphene and homogenous while controllable graphene moieties with high working stability, where the fundamental physical/chemical properties and the further extended energy applications will be conducted. Here, the defined graphene moieties, including the fine tailoring of multi-structured graphene architecture, functional groups, edge state, and their heteroatomic doping. A newly developed method is proposed to create the regular graphene edges, hetero-atomic doping(N-, P-,B-,S- and co-doping) and selective functionalization through the proposed in-situ treatment through specious-selective remote plasma or rapid heating with precursors. The interface reactions against various electrolyte and their reliability, such as the artificial solid electrolyte interphase (SEIs), on energy storage devices (battery and supercapacitor) will be conducted. Moreover, we develop a method to prepare the single atomic catalysts (SACs) by comprising the graphene architecture as a catalyst supporting frameworks, and their heteroatomic doping, the catalyst activity and performance are investigated on HER and further extend to module and system applications.