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Controllable Preparation and Application of New Graphdiyne Materials

Apr 28, 2019

With the development of renewable energy like wind and solar energy, various critical problems in energy and environment will be gradually improved. However, the solar energy and wind energy also exhibit disadvantages like instability, discontinuity and uncontrollability, causing huge unusable energy. To solve such issues, further development of energy storage and conversion materials for large-scale energy storage is urgent needed. 

In recent year, carbon materials, especially two-dimensional carbon materials, such as graphdiyne and graphene, have highly conjugated carbon skeleton, uniformly distributed pore and two-dimensional layered plane characteristics which have attracted extensive attention.

A research group led by Prof. HUANG Changshui from the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT), Chinese Academy of Sciences (CAS), found that the abundant acetylenic linkers of Graphdiyne could act as both the active site of reaction and the attachment sites for heteroatoms. They made full use of this characteristic to prepare the heteroatomic (such as iron, nitrogen, sulfur, etc.) doped graphdiyne materials.  

Graphdiyne, which are composed of phenyl rings and alkyne bonds, have larger porous structure and abundant sp-hybridized carbon atoms, which can provide abundant ion channels and catalytic active sites.  

The heteroatom doped graphdiyne with much more active sites and catalytic centers could be used in electrochemical energy storage with better performance.

Further application studies showed that the doped graphdiyne materials exhibited enhanced electrochemical properties in many applications such as lithium ion batteries, lithium ion capacitors, sodium ion capacitors, and electrocatalysis devices.

All these results have an significance for the development and preparation of novel carbon materials and their energy storage applications.  

Related research results were published in Carbon, Chem. Eur. J., ChemSusChem and ChemElectroChem.

This study was supported by the National Natural Science Foundation of China, the Frontier Science Research Project of CAS, and the Natural Science Foundation of Shandong Province for Distinguished Young Scholars.

Contact

CHENG Jing

Qingdao Institute of Bioenergy and Bioprocess Technology

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