Sacrificial Synthesis of Supported Ru Single Atoms and Clusters on N-doped Carbon Derived from Covalent Triazine Frameworks: A Charge Modulation Approach
文献类型：期刊论文
| 作者 | Zhang, Zihao; Yao, Siyu; Hu, Xiaobing; Okejiri, Francis; He, Kun; Liu, Pingying; Tian, Ziqi; Dravid, Vinayak P.; Fu, Jie; Zhu, Xiang |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 8期号:3 |
| 关键词 | METAL-ORGANIC FRAMEWORK POROUS CARBON TRANSFER HYDROGENATION NANOPOROUS CARBON CATALYSTS NANOPARTICLES OXIDATION REDUCTION |
| 英文摘要 | High-temperature pyrolysis of nitrogen (N)-rich, crystalline porous organic architectures in the presence of a metal precursor is an important chemical process in heterogeneous catalysis for the fabrication of highly porous N-carbon-supported metal catalysts. Herein, covalent triazine framework (CTF) and CTF-I (that is, CTF after charge modulation with iodomethane) are presented as sacrificial templates, for the synthesis of carbon-supported Ru catalysts-Ru-CTF-900 and Ru-CTF-I-900 respectively, following high-temperature pyrolysis at 900 degrees C under N-2 atmosphere. Predictably, the dispersed Ru on pristine CTF carrier suffered severe sintering of the Ru nanoparticles (NPs) during heat treatment at 900 degrees C. However, the Ru-CTF-I-900 catalyst is composed of ultra-small Ru NPs and abundant Ru single atoms which may have resulted from much stronger Ru-N interactions. Through modification of the micro-environment within the CTF architecture, Ru precursor interacted on charged-modulated CTF framework shows electrostatic repulsion and steric hindrance, thus contributing toward the high density of single Ru atoms and even smaller Ru NPs after pyrolysis. A Ru-Ru coordination number of only 1.3 is observed in the novel Ru-CTF-I-900 catalyst, which exhibits significantly higher catalytic activity than Ru-CTF-900 for transfer hydrogenation of acetophenone. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22368]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Fu, J (corresponding author), Zhejiang Univ, Key Lab Biomass Chem Engn, Minist Educ, Coll Chem & Biol Engn, Hangzhou 310027, Peoples R China. 2.Zhu, X (corresponding author), Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Suzhou Res Inst, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China. 3.Fu, J (corresponding author), Inst Zhejiang Univ Quzhou, 78 Jiuhua Blvd North, Quzhou 324000, Peoples R China. 4.Dai, S (corresponding author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. 5.Dai, S (corresponding author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. |
| 推荐引用方式 GB/T 7714 | Zhang, Zihao,Yao, Siyu,Hu, Xiaobing,et al. Sacrificial Synthesis of Supported Ru Single Atoms and Clusters on N-doped Carbon Derived from Covalent Triazine Frameworks: A Charge Modulation Approach[J]. ADVANCED SCIENCE,2021,8(3). |
| APA | Zhang, Zihao.,Yao, Siyu.,Hu, Xiaobing.,Okejiri, Francis.,He, Kun.,...&Dai, Sheng.(2021).Sacrificial Synthesis of Supported Ru Single Atoms and Clusters on N-doped Carbon Derived from Covalent Triazine Frameworks: A Charge Modulation Approach.ADVANCED SCIENCE,8(3). |
| MLA | Zhang, Zihao,et al."Sacrificial Synthesis of Supported Ru Single Atoms and Clusters on N-doped Carbon Derived from Covalent Triazine Frameworks: A Charge Modulation Approach".ADVANCED SCIENCE 8.3(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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