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Synthesis and Electronic Structure of Boron‐Graphdiyne with an sp‐Hybridized Carbon Skeleton and Its Application in Sodium Storage
Author(s) -
Wang Ning,
Li Xiaodong,
Tu Zeyi,
Zhao Fuhua,
He Jianjiang,
Guan Zhaoyong,
Huang Changshui,
Yi Yuanping,
Li Yuliang
Publication year - 2018
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201800453
Subject(s) - heteroatom , boron , conjugated system , molecule , carbon fibers , metal , materials science , ion , chemistry , inorganic chemistry , crystallography , nanotechnology , organic chemistry , ring (chemistry) , polymer , composite number , composite material
Boron‐graphdiyne (BGDY), which has a unique π‐conjugated structure comprising an sp‐hybridized carbon skeleton and evenlydistributed boron heteroatoms in a well‐organized 2D molecular plane, is prepared through a bottom‐up synthetic strategy. Excellent conductivity, a relatively low band gap and a packing mode of the planar BGDY are observed. Notably, the unusual bonding environment of the all sp‐carbon framework and the electron‐deficient boron centers generates affinity to metal atoms, and thus provides extra binding sites. Furthermore, the expanded molecule pores of the BGDY molecular plane can also facilitate the transfer of metal ions in the perpendicular direction. The practical effect of the all sp‐carbon structure and boron heteroatoms on the properties of BGDY are demonstrated in its performance as the anode in sodium‐ion batteries.