Selective synthesis of Kagome nanoporous graphene on Ag(111) <i>via</i> an organometallic template
Xingyu Li, Dong Han, Tianchen Qin, Juanjuan Xiong, Jianmin Huang, Tao Wang, Honghe Ding, Jun Hu, Qian Xu, Junfa Zhu
Abstract
classic Ullmann coupling. The templating effect of organometallic (OM) intermediates for subsequent covalent coupling is determined by comparing the OM phase and resultant covalent product. The reaction parameters are found to have a significant impact on the topology and quality of OM intermediates. Specifically, a higher surface temperature and lower evaporation rate favor the growth of better-quality and higher-yield OM Kagome NPGs. The covalent Kagome NPGs obtained by further annealing of these OM networks are affected likewise due to the template effect of OM intermediates. Our work further confirms the generality of the OM template effect. It also offers a novel method to achieve the selective synthesis of Kagome lattice networks.