Architecture of β‐Graphdiyne‐Containing Thin Film Using Modified Glaser–Hay Coupling Reaction for Enhanced Photocatalytic Property of TiO₂

Abstract

β-Graphdiyne (β-GDY) is a member of 2D graphyne family with zero band gap, and is a promising material with potential applications in energy storage, organic electronics, etc. However, the synthesis of β-GDY has not been realized yet, and the measurement of its intrinsic properties remains elusive. In this work, β-GDY-containing thin film is successfully synthesized on copper foil using modified Glaser-Hay coupling reaction with tetraethynylethene as precursor. The as-grown carbon film has a smooth surface and is continuous and uniform. Electrical measurements reveal the conductivity of 3.47 × 10 S m and the work function of 5.22 eV. TiO @β-GDY nanocomposite is then prepared and presented with an enhancement of photocatalytic ability compared to pure TiO .

Synthesis and Electronic Structure of Boron‐Graphdiyne with an sp‐Hybridized Carbon Skeleton and Its Application in Sodium Storage

“…Theinclusion of the quantitative amount of sp carbon in aw ay of acetylene bonds lead to as ignificant improvement of electronic structure,which is consistent with the subsequent theoretical analysis. [21] Another new carbon allotrope with ah igher ratio of sp-hybridized carbon to sp 2hybridized carbon (4:1) has also showed excellent electrochemical electrode performance [22] and enhanced photocatalytic properties, [23] which further confirms the important role of sp-hybridized carbon in the as-prepared two-dimensional carbon allotropes.T he development and discovery of new carbon materials and carbon-rich materials with hetero-elements are of scientific significance.I ti si nteresting to prepare ac arbon material with an established sp-hybridized carbon component and an even-distribution of ah eteroelement, the properties and performance of which should also be of interest.…”

Synthesis and Electronic Structure of Boron‐Graphdiyne with an sp‐Hybridized Carbon Skeleton and Its Application in Sodium Storage

“…The inclusion of the quantitative amount of sp carbon in a way of acetylene bonds lead to a significant improvement of electronic structure, which is consistent with the subsequent theoretical analysis . Another new carbon allotrope with a higher ratio of sp‐hybridized carbon to sp 2 ‐hybridized carbon (4:1) has also showed excellent electrochemical electrode performance and enhanced photo‐catalytic properties, which further confirms the important role of sp‐hybridized carbon in the as‐prepared two‐dimensional carbon allotropes. The development and discovery of new carbon materials and carbon‐rich materials with hetero‐elements are of scientific significance.…”

Interfacial Synthesis of Conjugated Crystalline 2D Fluorescent Polymer Film Containing Aggregation‐Induced Emission Unit

“…For example, Li and co‐workers reported the synthesis of fully conjugated 2D graphdiyne by using Glaser–Hay coupling reaction on the surface of copper foils, which served as dual roles of catalyst and the template . Since then, many 2D graphdiyne analogues have been synthesized by the same reaction . These 2D networks constructed with sp 2 ‐ and sp‐hybridized carbons exhibit high degrees of π conjugation, evenly distributed pores, and tunable electronic properties, showing vast potentials in catalysis, energy storage, biotechnology.…”