Details

Autor(en) / Beteiligte

• Xie, Chipeng
• Hu, Xiuli
• Guan, Zhaoyong
• Li, Xiaodong
• Zhao, Fuhua
• Song, Yuwei
• Li, Yuan
• Li, Xiaofang
• Wang, Ning
• Huang, Changshui

Titel

Tuning the Properties of Graphdiyne by Introducing Electron‐Withdrawing/Donating Groups

Ist Teil von

• Angewandte Chemie International Edition, 2020-08, Vol.59 (32), p.13542-13546

Auflage

International ed. in English

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 the band gap and increase the conductivity of the GDY network. The cyano and methyl groups affects the aggregation of GDY, providing a higher number of micropores and specific surface area. These groups also endow the original GDY additional advantages: the stronger electronegativity of cyano groups increase the affinity of GDY frameworks to lithium atoms, and the larger atomic volume of methyl groups increases the interlayer distance and provides more storage space and diffusion tunnels. CNGDY, HGDY, and MeGDY are prepared by a bottom‐to‐up synthesis strategy. The push–pull electron ability and size differences of groups play a key role on the partial property adjusting of as‐prepared graphdiyne (GDY) derivatives, such as energy gap, morphology, and affinity to alkali metals.