Controllable Synthesis of Graphdiyne Nanoribbons

Abstract

Graphdiyne nanoribbons with high chemical precision are of great significance for further understanding of the intrinsic properties of graphdiyne and the relationship between structure and properties. However, the reliable synthesis of graphdiyne nanoribbons with chemical precision remains a significant challenge. A facile method is now presented for fabrication of graphdiyne nanoribbons with uniform width through stepwise inter‐ and intramolecular Glaser–Hay coupling reaction of ethynyl groups. The synthetic ribbons were interwoven into nanotextiles by π–π stacking and were applied for protective coating of Li‐electrode in Li‐ion batteries, which efficiently suppressed the growth of the Li dendrites during cycling and prolonged the life span of Li‐metal batteries.

Silver incorporated into g-C3N4/Alginate as an efficient and heterogeneous catalyst for promoting click and A3 and KA2 coupling reaction

“…Stabilization of nanoparticles on proper supports overcomes the problems associated with their stability, separation, and recovery. In this regard, various supports have been utilized for the stabilization of nanoparticles such as zeolite, TiO 2 , graphene oxide, Fe 3 O 4 9 – 12 , and carbon-based supports 13 – 17 , Among the different supports, g -C 3 N 4 has shown good chemical resistance 18 – 20 .…”

Recent Progress in Graphdiyne for Electrocatalytic Reactions

“…Figure 2b shows TEM of nanosheet, in which selected area electron diffraction (SAED) is shown as a crystalline characteristic sheet (inset of Figure 2b), and the two main diffraction points correspond to d‐spacing 0.41 and 0.33 nanometers, respectively. The HR‐TEM image in Figure 2c shows that the d‐spacing between parallel lines is 0.33 nm [23] . Figure 2d shows that interlayer spacing of β‐GDY is 0.369 nm [24] .…”

Journey from Small‐Molecule Diyne Structures to 2D Graphdiyne: Synthetic Strategies

“…The first well‐designed GDYNRs, consisting of rhombus repeating substructures (Figure A), were obtained through this strategy, in which benzene and butadiyne were chosen as vertices and edges, respectively. The obtained GDYNRs showed a definite width of about 4 nm and extended length of up to hundreds of nanometers . This novel GDYNR preferred to be self‐assembled into nanotextiles by interlayer π–π interactions (Figure B).…”