Surface Functionalization of a γ‐Graphyne‐like Carbon Material via Click Chemistry

Surface functionalization of carbon materials is of interest in many research fields, such as electrocatalysis, interfacial engineering, and supercapacitors. As an emerging carbon material, γ‐graphyne has attracted broad attention. Herein, we report that the surface functionalization of a γ‐graphyne‐like carbon material (γ‐G1) is achieved by immobilizing functional groups via the click chemistry. Texture analysis of aberration‐corrected microscopy, X‐ray photoelectron spectroscopy, and electrochemistry confirm the successful surface modification of γ‐G1 through a strong covalent linkage 1,2,3‐triazole. The direct linkage of functional groups on γ‐G1 via the click chemistry represents a general method for preparing other functional materials by using γ‐graphyne‐like materials as a skeleton. A γ‐graphyne‐like carbon material, synthesized via the aromatic nucleophilic substitution reaction, was successfully functionalized by forming covalent bonds through click chemistry. This result has paved the way to functionalize graphyne‐based carbon materials, and the resulting hybrid materials may find applications in numerous fields.