Synthesis of Graphdiyne Nanowalls Using Acetylenic Coupling Reaction

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• 作者：Jingyuan Zhou ; Xin Gao ; Rong Liu ; Ziqian Xie ; Jin Yang ; Shuqing Zhang ; Gengmin Zhang ; Huibiao Liu ; Yuliang Li ; Jin Zhang ; Zhongfan Liu
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：June 24, 2015
• 年：2015
• 卷：137
• 期：24
• 页码：7596-7599
• 全文大小：309K
• ISSN：1520-5126

文摘

Synthesizing graphdiyne with a well-defined structure is a great challenge. We reported herein a rational approach to synthesize graphdiyne nanowalls using a modified Glaser鈥揌ay coupling reaction. Hexaethynylbenzene and copper plate were selected as monomer and substrate, respectively. By adjusting the ratio of added organic alkali along with the amount of monomer, the proper amount of copper ions was dissolved into the solution, thus forming catalytic reaction sites. With a rapid reaction rate of Glaser鈥揌ay coupling, graphdiyne grew vertically at these sites first, and then with more copper ions dissolved, uniform graphdiyne nanowalls formed on the surface of copper substrate. Raman spectra, UV鈥搗is spectra, and HRTEM results confirmed the features of graphdiyne. These graphdiyne nanowalls also exhibited excellent and stable field-emission properties.