Self-templated covalent functionalization of graphitic surfaces with a quasi-periodic pattern  

作　　者：Yuanzhi Xia Johannes Seibel Steven De Feyter 

机构地区：[1]Division of Molecular Imaging and Photonics,Department of Chemistry,KU Leuven,Leuven,Belgium

出　　处：《Aggregate》2022年第4期121-130,共10页聚集体（英文）

基　　金：Research Foundation-Flanders (FWO),Grant/Award Numbers:G081518N,G082218N;KU Leuven-Internal Funds,Grant/Award Number:C14/19/079;FWO under EOS,Grant/Award Number:30489208;the China Scholarship Council,Grant/Award Number:CSC 201706890021;Marie Skłodowska-Curie Individual Fellowship,Grant/Award Number:789865-EnSurf。

摘　　要：Patterned covalent functionalization of graphitic surfaces(GSs)is of interest in the development of devices and nanocomposite materials.In contrast to the strategies using external templates or control for realizing patterned covalent functionalization of GSs,here,we present a self-templated strategy by exploiting the synergistic effects of chemical and physical functionalization of GSs.Therefore,a diazonium salt is reduced by potassium iodide(KI)in dimethyl sulfoxide while the solution is in contact with a GS,resulting in its spatially heterogeneous,that is,chemical and physical,functionalization.This heterogeneous functionalization leads to a quasiperiodic pattern of striped corrals with three equivalent orientations in the covalent layer.The formation of the striped corrals is ascribed to physisorbed domains formed by self-assembled N_(2),which is produced in situ during the reduction of the diazonium salt,preventing the covalent functionalization.

关 键 词：diazonium chemistry graphitic surfaces patterned covalent functionalization quasi-periodic patterning self-templated strategy 

分 类 号：O62[理学—有机化学]