论文摘要
Although a variety of nanoparticles with better-than-bulk material performances can be synthesized, it remains a challenge to scale the extraordinary properties of individual nanoscale units to the macroscopic level for bulk nanostructured materials. Here, we report a general and scalable biosynthesis strategy that involves simultaneous growth of cellulose nanofibrils through microbial fermentation and co-deposition of various kinds of nanoscale building blocks（NBBs） through aerosol feeding on solid culture substrates. We employ this biosynthesis strategy to assemble a wide range of NBBs into cellulose nanofibril-based bulk nanocomposites. In particular, the biosynthesized carbon nanotubes/bacterial cellulose nanocomposites that consist of integrated 3D cellulose nanofibril networks simultaneously achieve an extremely high mechanical strength and electrical conductivity, and thus exhibit outstanding performance as high-strength lightweight electromagnetic interference shielding materials. The biosynthesis approach represents a general and efficient strategy for large-scale production of functional bulk nanocomposites with enhanced performances for practical applications. Industrial-scale production of these bulk nanocomposite materials for practical applications can be expected in the near future.
论文目录
文章来源
类型: 期刊论文
作者: Qing-Fang Guan,Zi-Meng Han,Tong-Tong Luo,Huai-Bin Yang,Hai-Wei Liang,Si-Ming Chen,Guang-Sheng Wang,Shu-Hong Yu
来源: National Science Review 2019年01期
年度: 2019
分类: 基础科学,工程科技Ⅱ辑,工程科技Ⅰ辑
专业: 材料科学
单位: Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale,Department of Chemistry, University of Science and Technology of China,School of Chemistry and Environment,Beihang University,CAS Center for Excellence in Nanoscience,Collaborative Innovation Center of Suzhou Nano Science and Technology, Hefei Science Center,Department of Chemistry, University of Science and Technology of China,Hefei China3.School of Chemistry and Environment,Beihang University
基金: supported by the National Natural Science Foundation of China(51732011,21431006,21761132008,21671184),the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(21521001),the Key Research Program of Frontier Sciences,CAS(QYZDJ-SSW-SLH036),the National Basic Research Program of China(2014CB931800),the Users with Excellence and Scientific Research Grant of the Hefei Science Center of CAS(2015HSC-UE007),the ‘Recruitment Program of Global Experts’
分类号: TB34
页码: 64-73
总页数: 10
文件大小: 1485K
下载量: 36