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Engineering Bulk, Layered, Multicomponent Nanostructures with High Energy Density
Author(s) -
Huang Guangwei,
Li Xiaohong,
Lou Li,
Hua Yingxin,
Zhu Guangjun,
Li Ming,
Zhang HaiTian,
Xiao Jianwei,
Wen Bin,
Yue Ming,
Zhang Xiangyi
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201800619
Subject(s) - materials science , nanostructure , nanomaterials , magnetism , nanotechnology , nanocomposite , power density , thermoelectric effect , power (physics) , condensed matter physics , physics , quantum mechanics , thermodynamics
The precise control of individual components in multicomponent nanostructures is crucial to realizing their fascinating functionalities for applications in electronics, energy‐conversion devices, and biotechnologies. However, this control remains particularly challenging for bulk, multicomponent nanomaterials because the desired structures of the constitute components often conflict. Herein, a strategy is reported for simultaneously controlling the structural properties of the constituent components in bulk multicomponent nanostructures through layered structural design. The power of this approach is illustrated by generating the desired structures of each constituent in a bulk multicomponent nanomaterial (SmCo + FeCo)/NdFeB, which cannot be attained with existing methods. The resulting nanostructure exhibits a record high energy density (31 MGOe) for this class of bulk nanocomposites composed of both hard and soft magnetic materials, with the soft magnetic fraction exceeding 20 wt%. It is anticipated that other properties beyond magnetism, such as the thermoelectric and mechanical properties, can also be tuned by engineering such layered architectures.