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BaTiO3 Supercages: Unusual Oriented Nanoparticle Aggregation and Continuous Ordering Transition in Morphology
Li, J (Li, Juan); Hietala, S (Hietala, Sami); Tian, XL (Tian, Xuelin); Tian, Xuelin
2015
Source PublicationACS NANO
ISSN1936-0851
Volume9Issue:1Pages:496-502
AbstractHere we report the organic-free mesocrystalline superstructured cages of BaTiO3, i.e., the BaTiO3 supercages, which are synthesized by a one-step templateless and additive-free route using molten hydrated salt as the reaction medium. An unusual three-dimensional oriented aggregation of primary BaTiO3 nanoparticles in the medium of high ionic strength, which normally favors random aggregation, is identified to take place at the early stage of the synthesis. The spherical BaTiO3 aggregates further experience a remarkable continuous ordering transition in morphology, consisting of nanoparticle faceting and nanosheet formation steps. This ordering transition in conjunction with Ostwald ripening-induced solid evacuation leads to the formation of unique supercage structure of BaTiO3. Benefiting from their structure, the BaTiO3 supercages exhibit improved microwave absorption property.
KeywordMesocrystals Hollow Structures Oriented Aggregation Electric Double Layer Ordering Transition Molten Hydrated Salt Microwave Absorption
DOI10.1021/nn505667x
Indexed BySCI
WOS IDWOS:000348619000052
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4211
Collection材料物理与化学研究室
Corresponding AuthorTian, Xuelin
AffiliationAalto Univ, Dept Mat Sci & Engn, Espoo 02150, Finland;Univ Helsinki, Polymer Chem Lab, Dept Chem, FIN-00014 Helsinki, Finland;Aalto Univ, Dept Appl Phys, Espoo 02150, Finland;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Li, J ,Hietala, S ,Tian, XL ,et al. BaTiO3 Supercages: Unusual Oriented Nanoparticle Aggregation and Continuous Ordering Transition in Morphology[J]. ACS NANO,2015,9(1):496-502.
APA Li, J ,Hietala, S ,Tian, XL ,&Tian, Xuelin.(2015).BaTiO3 Supercages: Unusual Oriented Nanoparticle Aggregation and Continuous Ordering Transition in Morphology.ACS NANO,9(1),496-502.
MLA Li, J ,et al."BaTiO3 Supercages: Unusual Oriented Nanoparticle Aggregation and Continuous Ordering Transition in Morphology".ACS NANO 9.1(2015):496-502.
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