title: Metal adatoms generated by the co-play of melamine assembly and subsequent CO adsorption.
abstract: Molecular self-assembly films are expected to tailor the surface process by the periodic nanostructures and add-on functional groups. In this work, a molecular network of melamine with featured pores of subnanometer size is prepared on the Au(111) surface, and is found to be able to trap the gold adatoms and concomitant single vacancies generated under the impingement of CO molecules at room temperature. DFT calculations suggest that the strong CO-Au adatom interaction as well as the high adhesion of the Au adatom inside the melamine pore could well be the driving force behind such process. This study not only sheds light onto the interactions between gasses and the metal surface that is covered by molecular self-assembly films, but also provides a novel route to manipulate the monoatomic surface species which is of catalytic interest.
authors.affiliation: Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China. shaox@ustc.edu.cn.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.affiliation: BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. kaiwu@pku.edu.cn.
authors.forename: Qiwei
authors.initials: Q
authors.lastname: Chen
authors.affiliation: Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China. shaox@ustc.edu.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Shi
authors.affiliation: Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China. shaox@ustc.edu.cn.
authors.forename: Huihui
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China. renxg@ustc.edu.cn and Synergistic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Xinguo
authors.initials: X
authors.lastname: Ren
authors.affiliation: HFNL, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Wang
authors.affiliation: BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. kaiwu@pku.edu.cn and Singapore Peking University Research Centre (SPURc), 1 CREATE Way, #15-01, CREATE Tower, 138602, Singapore.
authors.forename: Kai
authors.initials: K
authors.lastname: Wu
authors.affiliation: Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China. shaox@ustc.edu.cn and Synergistic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Shao