| Title | Synergetic interaction between neighboring platinum and ruthenium monomers boosts CO oxidation |
| Authors | Zhou, Peng Hou, Xingang Chao, Yuguang Yang, Wenxiu Zhang, Weiyu Mu, Zijie Lai, Jianping Lv, Fan Yang, Kuan Liu, Yuxi Li, Jiong Ma, Jingyuan Luo, Jun Guo, Shaojun |
| Affiliation | Peking Univ, Dept Mat Sci & Engn, Beijing 100871, Peoples R China Tianjin Univ Technol, Inst New Energy Mat & Low Carbon Technol, Sch Mat, Ctr Electron Microscopy,Tianjin Key Lab Adv Funct, Tianjin 300384, Peoples R China Qingdao Univ Sci & Technol, Key Lab Ecochem Engn, Taishan Scholar Adv & Characterist Discipline Tea, Coll Chem & Mol Engn, Qingdao 266042, Shandong, Peoples R China Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol, Beijing 100871, Peoples R China Peking Univ, Coll Engn, Key Lab Theory & Technol Adv Batteries Mat, Beijing 100871, Peoples R China |
| Issue Date | 2019 |
| Publisher | CHEMICAL SCIENCE |
| Abstract | Sub-nanometer noble metal catalysts, especially single atom (SA), are a new class of catalytic materials for boosting catalysis and possess unique catalytic properties and high atomic utilization efficiency. Exploring the interaction between two neighboring atom monomers has great potential to further improve the performance of SA catalysts and deepen the understanding on the catalytic mechanism of heterogeneous catalysis at the atomic level. Herein, we demonstrate that the synergetic effect between neighboring Pt and Ru monomers supported on N vacancy-rich g-C3N4 promotes the catalytic CO oxidation. The experimental observation and theoretical simulation reveal that the N vacancy in the g-C3N4 structure builds an optimized triangular sub-nanometer cavity for stabilizing the neighboring PtRu monomers by forming Pt-C and Ru-N bonds. The mechanistic studies based on the in situ IR spectrum and theoretical simulation confirm that the neighboring Pt-Ru monomers possess a higher performance for optimizing O2 activation than Ru-Ru/Pt-Pt monomers or isolated Ru/Pt atoms by balancing the energy evolution of reaction steps in the catalytic CO oxidation. The discovery of the synergetic effect between neighboring monomers may create a new path for manipulating the catalytic properties of SA catalysts. |
| URI | http://hdl.handle.net/20.500.11897/547389 |
| ISSN | 2041-6520 |
| DOI | 10.1039/c9sc00658c |
| Indexed | SCI(E) EI |
| Appears in Collections: | 工学院 先进电池材料料理论与技术北京市重点实验室 |
