Design and self-assembly of advanced functional molecular materials—from low dimension to multi-dimension

Abstract

On the basis of the design and synthesis of functional molecules, considering the key scientific issues of energy principle, match between structure and properties, and complex physical and chemical phenomena at small-scale, the new self-assembly methods were established to develop self-assembly techniques for molecular aggregation materials with controllable sizes and structures, and some large area, highly ordered molecular aggregation materials were constructed. Ordered heterogeneous and homogeneous materials and surface/interface issues, especially interface activity, interface connecting were investigated. The strong dependence of property and functionality on the morphology, size and dimension in the molecular aggregation materials was proved. The synthesis method for a new allotrope of carbon, graphydiyne, was established, the first successful synthesis of two-dimensional carbon allotrope graphydiyne with band gap of 0.46 eV on the copper foil was achieved, and the application of graphydiyne in the area of information technology, electronics, energy, catalysis and photovoltaic were investigated. These studies are of great scientific significance on chemistry, materials science, physics, microelectronics and other basic scientific research and related interdisciplinary areas, showing important academic value and potential applications in the area of micro-nano electronics, field emission, photoelectric conversion and biosensors.

Ultrathin Graphdiyne Nanosheets Grown In Situ on Copper Nanowires and Their Performance as Lithium‐Ion Battery Anodes

“…Graphdiyne (GDY), an artificial carbon allotrope, possesses 2D framework with in‐plane nanopores as a result of its combination of sp 2 ‐ and sp‐hybridized carbon . Compared with sp2 carbons, GDY synthesized under mild conditions exhibits significant superiorities in its promising applications.…”

Ultrathin Nanosheet of Graphdiyne-Supported Palladium Atom Catalyst for Efficient Hydrogen Production

“…Graphdiyne (GDY), a relatively new two-dimensional (2D) planar carbon allotrope comprising sp 2 -hybridized carbon atoms in benzene rings linked through sp-hybridized carbon atoms in diacetylenic groups has attracted great attention in chemistry, physics, and material science ever since its first successful synthesis by our group (Huang et al., 2018, Jia et al., 2017, Li, 2017, Li et al., 2010, Li et al., 2014a, Li et al., 2014b, Matsuoka et al., 2017, Xue et al., 2018a, Xue et al., 2018b, Yu et al., 2018). In particular, it has been proposed as an excellent substrate for anchoring zero-valent metal atoms (Xue et al., 2018a, Xue et al., 2018b).…”

Controlled Growth of MoS2 Nanosheets on 2D N‐Doped Graphdiyne Nanolayers for Highly Associated Effects on Water Reduction

“…Superior to conventional carbon materials, a new carbon allotrope, GDY, featuring a single layer of sp‐ and sp 2 ‐hybridized carbon network, has been first synthesized by our group, predicted to be the most stable carbon allotrope, and demonstrated excellent catalytic performances, because of the rich pi bonds and large cavity structure . Owing to its unique electronic properties, graphdiyne possesses the natural band gap (0.47 or 1.12 eV, by two different methods), the intrinsic charge carrier mobility of graphdiyne (2 × 10 5 cm 2 V −1 s −1 ) which is higher than graphene and single‐wall carbon nanotubes (7.9 × 10 4 cm 2 V −1 s −1 ), and the silicon‐like electronic conductivity (2.56 × 10 −1 S m −1 ) .…”