石墨炔及其聚集态结构与性能研究进展

Progress on the Structures and Properties of Graphyne and Its Aggregation States

石墨炔是由sp和sp2杂化形成的具有一种新型二维网络结构的碳的同素异形体,具有丰富的碳化学键、大的共轭体系、宽面间距、优良的化学稳定性。由于其具有特殊的电子结构及类似硅的优异的半导体性能,石墨炔有望广泛应用于电子、半导体与光电器件、催化以及新能源领域。本文总结了石墨炔的结构、超分子类石墨炔结构、石墨炔的多层超分子聚集体结构、类石墨炔碳纳米网络结构及其设计策略、石墨炔的力学性能等研究进展,对其在2D负泊松比材料分子设计研究方面进行了展望。

Graphyne is a two-dimensional(2D)network structure of carbon allotropes formed by sp and sp^2 hybrid states,with rich carbon chemical bonds,large conjugate system,wide surface spacing and excellent chemical stability.Because of its special electronic structure and excellent semiconductor properties like silicon,graphyne is expected to be widely applied in electronics,semiconductor and optoelectronic devices,catalysis and new energy fields.This paper summarizes the research progresses on the structures of graphyne,supramolecular structure of graphyne-like system,multilayer supramolecular aggregated structures of graphyne and network structure,design strategy of graphyne-like nano-carbon and mechanical properties of graphyne,especially the molecular design of the graphyne-like 2D nano-carbon with negative Poisson′s ratio is prospected.