制作
材料科学
纳米技术
韧性
纳米材料
成核
石墨烯
多孔性
氧化物
聚合物
复合材料
医学
化学
替代医学
有机化学
病理
冶金
作者
Meng Li,Mengning Wang,Nifang Zhao,Hao Bai
出处
期刊:ACS Nano
[American Chemical Society]
日期:2022-08-15
卷期号:16 (9): 14737-14744
被引量:17
标识
DOI:10.1021/acsnano.2c05547
摘要
The extraordinary structural and mechanical features of nacre have been widely explored and translated into synthetic layered materials through various methods. However, it still remains challenging to achieve scale-up fabrication of these biomimetic layered materials, which is the main hurdle for their real applications. Herein, we report a facile, universal, and scalable strategy to produce bulk materials with nacre-mimetic architecture and performance. This was realized by the ordered nucleation of ice crystals on a nanogrooved surface. After the infiltration of a polymer, both the specific strength and toughness of our artificial nacre outperform those of natural nacre and other nacre-mimetic materials. Due to the scalability and availability of a nanogrooved surface, large-sized, bulk artificial nacre (30 × 20 × 5 cm) was also obtained through the directional freezing process. In addition, this efficient approach can also be extended to assemble various building blocks like functional nanomaterials such as graphene oxide and MXene nanosheets into bulk porous materials with highly ordered three-dimensional architecture, holding great potential for multifunctional applications.
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