Tuning the Properties of Graphdiyne by Introducing Electron‐Withdrawing/Donating Groups
作者:Chipeng Xie、Xiuli Hu、Zhaoyong Guan、Xiaodong Li、Fuhua Zhao、Yuwei Song、Yuan Li、Xiaofang Li、Ning Wang、Changshui Huang
DOI:10.1002/anie.202004454
日期:2020.8.3
The properties of graphdiyne (GDY), such as energy gap, morphology, and affinity to alkali metals, can be adjusted by including electron‐withdrawing/donating groups. The push–pull electron ability and size differences of groups play a key role on the partial property adjusting of GDY derivatives MeGDY, HGDY, and CNGDY. Cyano groups (electron‐withdrawing) and methyl groups (electron‐donating) decrease
石墨二炔(GDY)的性质,例如能隙,形态和对碱金属的亲和力,可以通过包含吸电子/给电子基团进行调节。推挽电子的能力和基团的大小差异在GDY衍生物MeGDY,HGDY和CNGDY的部分性能调节中起着关键作用。氰基(吸电子)和甲基(给电子)可减少带隙并增加GDY网络的电导率。氰基和甲基会影响GDY的聚集,从而提供更多数量的微孔和比表面积。这些基团还赋予了原始GDY额外的优势:氰基的更强电负性增加了GDY骨架与锂原子的亲和力,