DICP OpenIR
Enhanced oxidation resistance of active nanostructures via dynamic size effect
Liu, Yun1,2; Yang, Fan1; Zhang, Yi1,2; Xiao, Jianping1; Yu, Liang1; Liu, Qingfei1,2; Ning, Yanxiao1; Zhou, Zhiwen1,2; Chen, Hao1,2; Huang, Wugen1,2; Liu, Ping3; Bao, Xinhe1
Source PublicationNATURE COMMUNICATIONS
2017-02-22
ISSN2041-1723
DOI10.1038/ncomms14459
Volume8
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology
WOS SubjectMultidisciplinary Sciences
WOS Research AreaScience & Technology - Other Topics
WOS KeywordIRON-OXIDE FILMS ; FEO NANOPARTICLES ; INTERFACE ; PT(111) ; STM ; FEO/PT(111) ; GROWTH ; SITES
AbstractA 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.
Language英语
WOS IDWOS:000394774800001
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169625
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang, Fan; Bao, Xinhe
Affiliation1.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
Recommended Citation
GB/T 7714
Liu, Yun,Yang, Fan,Zhang, Yi,et al. Enhanced oxidation resistance of active nanostructures via dynamic size effect[J]. NATURE COMMUNICATIONS,2017,8.
APA Liu, Yun.,Yang, Fan.,Zhang, Yi.,Xiao, Jianping.,Yu, Liang.,...&Bao, Xinhe.(2017).Enhanced oxidation resistance of active nanostructures via dynamic size effect.NATURE COMMUNICATIONS,8.
MLA Liu, Yun,et al."Enhanced oxidation resistance of active nanostructures via dynamic size effect".NATURE COMMUNICATIONS 8(2017).
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