Self-assembly of ultralight and compressible inorganic sponges with hierarchical porosity by electrospinning
Self-assembly of ultralight and compressible inorganic sponges with hierarchical porosity by electrospinning
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静电纺丝自组装具有分级孔隙率的超轻可压缩无机海绵
DOI：
10.1016/j.ceramint.2019.09.031
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发表时间：
2020
影响因子：
5.2
通讯作者：
Yan Xu
中科院分区：
文献类型：
--
作者：
Yun Wang;Haibo Huang;Yue Zhao;Zhongmin Feng;Hongtao Fan;Ting Sun;Yan Xu
The construction of three dimensional macroporous architectures holds exciting implications for applications such as catalysis, sensing, tissue engineering and thermal insulation. Here, we report a general self-assembly process for inorganic sponges with hierarchical porosity of intrafibre micro-/meso-/macropores and interfibre macropores. The as-fabricated SiO2-TiO2sponge possesses a high porosity of >99.86%, ultralow bulk density of 2.9 mg cm−3and enhanced compressibility (recovery from 50% compression). The self-assembly mechanism of the SiO2-TiO2sponge has been investigated in detail. The results confirmed that the hydrolysis and polycondensation of mixed inorganic alkoxides could affect the solidification process and the charge transpote during electrospinning, and plays an essential role on the hierarchical porosity and the self-assembly of the sponge macro-structure. The concerted effects of the solidification and electrostatic repulsion between fibres are responsible for the self-assembly process of the electrospun PVP-SiO2-TiO2sponge. When used as a thermal insulation material, the SiO2-TiO2sponge shows good fireproof performances. The current contribution may guide more construction of functional inorganic macroporous architectures for advance applications in future.
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多功能、超轻、掺氮石墨烯框架
影响因子：
16.6
作者：
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通讯作者：
Qu, Liangti
影响因子：
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作者：
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29.4
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Ding, Bin
影响因子：
15.1
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Jianan Song;Haiyang Wang;Ziwei Li;Yuanzheng Long;Zhenglian Liu;Haolun Wang;Xiaoyan Li;M. Fang;Bo Li;Hui Wu
通讯作者：
Jianan Song;Haiyang Wang;Ziwei Li;Yuanzheng Long;Zhenglian Liu;Haolun Wang;Xiaoyan Li;M. Fang;Bo Li;Hui Wu
具有超弹性和多功能性的超轻纳米纤维组装细胞气凝胶
影响因子：
16.6
作者：
Si, Yang;Yu, Jianyong;Ding, Bin
通讯作者：
Ding, Bin