ENGLISH |
中国科研实验室
| 发表年度： | 2017 |
|---|---|
| 期： | 36 |
| 卷： | 56 |
| 页： | 10740-10745 |
| 摘要： | Chlorine-substituted graphdiyne (Cl-GDY) is prepared through a Glaser-Hay coupling reaction on the copper foil. Cl-GDY is endowed with a unique pi-conjugated carbon skeleton with expanded pore size in two dimensions, having graphdiyne-like sp- and sp(2)- hybridized carbon atoms. As a result, the transfer tunnels for lithium (Li) ions in the perpendicular direction of the molecular plane are enlarged. Moreover, benefiting from the bottom-to-up fabrication procedure of graphdiyne and the strong chemical tailorability of the alkinyl-contained monomer, the amount of substitutional chlorine atoms with appropriate electronegativity and atom size is high and evenly distributed on the as-prepared carbon framework, which will synergistically stabilize the Li intercalated in the Cl-GDY framework, and thus generate more Li storage sites. Profiting from the above unique structure, Cl-GDY shows remarkable electrochemical properties in lithium ion half-cells. |
| 刊物名称： | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION |
| 影响因子： | 12.257 |
