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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
发表期刊ACS NANO
ISSN1936-0851
卷号9期号:1页码:496-502
摘要Here 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.
关键词Mesocrystals Hollow Structures Oriented Aggregation Electric Double Layer Ordering Transition Molten Hydrated Salt Microwave Absorption
DOI10.1021/nn505667x
收录类别SCI
WOS记录号WOS:000348619000052
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文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4211
专题材料物理与化学研究室
通讯作者Tian, Xuelin
作者单位Aalto 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
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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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