Enhanced oxidation resistance of active nanostructures via dynamic size effect
文献类型：期刊论文
| 作者 | Chen, Hao1,2; Bao, Xinhe1; Liu, Ping3; Huang, Wugen1,2; Liu, Yun1,2; Yang, Fan1; Zhang, Yi1,2; Xiao, Jianping1; Yu, Liang1; Liu, Qingfei1,2 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2017-02-22 |
| 卷号 | 8 |
| ISSN号 | 2041-1723 |
| DOI | 10.1038/ncomms14459 |
| 文献子类 | Article |
| 英文摘要 | A major challenge limiting the practical applications of nanomaterials is that the activities of nanostructures (NSs) increase with reduced size, often sacrificing their stability in the chemical environment. Under oxidative conditions, NSs with smaller sizes and higher defect densities are commonly expected to oxidize more easily, since high-concentration defects can facilitate oxidation by enhancing the reactivity with O-2 and providing a fast channel for oxygen incorporation. Here, using FeO NSs as an example, we show to the contrary, that reducing the size of active NSs can drastically increase their oxidation resistance. A maximum oxidation resistance is found for FeO NSs with dimensions below 3.2 nm. Rather than being determined by the structure or electronic properties of active sites, the enhanced oxidation resistance originates from the size-dependent structural dynamics of FeO NSs in O-2. We find this dynamic size effect to govern the chemical properties of active NSs. |
| WOS关键词 | IRON-OXIDE FILMS ; FEO NANOPARTICLES ; INTERFACE ; PT(111) ; STM ; FEO/PT(111) ; GROWTH ; SITES |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000394774800001 |
| 出版者 | NATURE PUBLISHING GROUP |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169624]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Bao, Xinhe; Yang, Fan |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Catalysis,CAS Ctr Excellence Nanosc, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA |
| 推荐引用方式 GB/T 7714 | Chen, Hao,Bao, Xinhe,Liu, Ping,et al. Enhanced oxidation resistance of active nanostructures via dynamic size effect[J]. NATURE COMMUNICATIONS,2017,8. |
| APA | Chen, Hao.,Bao, Xinhe.,Liu, Ping.,Huang, Wugen.,Liu, Yun.,...&Zhou, Zhiwen.(2017).Enhanced oxidation resistance of active nanostructures via dynamic size effect.NATURE COMMUNICATIONS,8. |
| MLA | Chen, Hao,et al."Enhanced oxidation resistance of active nanostructures via dynamic size effect".NATURE COMMUNICATIONS 8(2017). |
入库方式： OAI收割
来源：大连化学物理研究所
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