Interfacial Effects in Iron-Nickel Hydroxide-Platinum Nanoparticles Enhance Catalytic Oxidation
文献类型：期刊论文
| 作者 | Chen, GX ; Zhao, Y ; Fu, G ; Duchesne, PN ; Gu, L ; Zheng, YP ; Weng, XF ; Chen, MS ; Zhang, P ; Pao, CW ; Lee, JF ; Zheng, NF |
| 刊名 | SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 344期号:6183页码:495 |
| ISSN号 | 0036-8075 |
| 通讯作者 | Fu, G (reprint author), Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat, Natl Engn Lab Green Chem Prod Alcohols Ethers & E, Xiamen 361005, Peoples R China. |
| 中文摘要 | Hybrid metal nanoparticles can allow separate reaction steps to occur in close proximity at different metal sites and accelerate catalysis. We synthesized iron-nickel hydroxide-platinum (transition metal-OH-Pt) nanoparticles with diameters below 5 nanometers and showed that they are highly efficient for carbon monoxide (CO) oxidation catalysis at room temperature. We characterized the composition and structure of the transition metal-OH-Pt interface and showed that Ni2+ plays a key role in stabilizing the interface against dehydration. Density functional theory and isotope-labeling experiments revealed that the OH groups at the Fe3+-OH-Pt interfaces readily react with CO adsorbed nearby to directly yield carbon dioxide (CO2) and simultaneously produce coordinatively unsaturated Fe sites for O-2 activation. The oxide-supported PtFeNi nanocatalyst rapidly and fully removed CO from humid air without decay in activity for 1 month. |
| 资助信息 | Ministry of Science and Technology of China [2011CB932403]; National Nature Science Foundation of China [21131005, 20925103, 21373167, 21033006, 21333008]; Natural Sciences and Engineering Research Council of Canada |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59659]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen, GX,Zhao, Y,Fu, G,et al. Interfacial Effects in Iron-Nickel Hydroxide-Platinum Nanoparticles Enhance Catalytic Oxidation[J]. SCIENCE,2014,344(6183):495. |
| APA | Chen, GX.,Zhao, Y.,Fu, G.,Duchesne, PN.,Gu, L.,...&Zheng, NF.(2014).Interfacial Effects in Iron-Nickel Hydroxide-Platinum Nanoparticles Enhance Catalytic Oxidation.SCIENCE,344(6183),495. |
| MLA | Chen, GX,et al."Interfacial Effects in Iron-Nickel Hydroxide-Platinum Nanoparticles Enhance Catalytic Oxidation".SCIENCE 344.6183(2014):495. |
入库方式： OAI收割
来源：物理研究所
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