【作者】 姚宏斌； 葛进； 俞书宏；

【Author】 Hong-Bin Yao;Jin Ge;Shu-Hong Yu;Department of Chemistry, University of Science and Technology of China;Hefei National Laboratory;

【机构】 中国科学技术大学化学系； 合肥微尺度物质科学国家实验室；

【摘要】 纳米材料的组装与集成是其走向实用化的基础,同时在纳米材料组装过程中单个纳米颗粒性质的集成放大将实现新的功能。近两年,纳米材料组装体已成为纳米材料研究领域的热点并取得了重要进展。这里,我们主要介绍基于海绵三维结构的纳米组装体的制备以及功能与应用研究。我们在合成Ag@PVA同轴电缆三维网络海绵的基础上,通过碳化得到Ag@C和C微米管的三维弹性导体,所制备的弹性导体表现出良好的弹性、高的导电性和很好的压缩循环性。~[1]受此三维弹性海绵的启发,我们进一步利用商业化的聚氨酯海绵为组装体骨架,实现银纳米线-聚氨酯双网络结构高性能弹性导体,使其可拉伸率达到150%。~[2]此外,我们还通过石墨包覆海绵体中的断裂机构设计,制备了高灵敏度压力传感器,并证明了其电子皮肤方面的应用潜力。~[3]通过海绵三维结构中的银纳米线的组装以及银的氧化形成Ag@AgC l纳米线负载的具有光催化功能的海绵体,实现连续相的光催化降解。~[4]更多还原

【Abstract】 The assembly and integration of nanomaterials are the basis of practical applications of nanomaterials and meanwhile the individual properties of single nanoparticle can be integrated and enlarged to generate new functionality. In past few years, the functional assemblies of nanomaterials has been the hot field of nanomaterial research and much progress has been achieved. Here, we will introduce functional nanomaterial assemblies based on three dimensional structures of sponge. Through the carbonization of as-prepared Ag@PVA cable sponge we fabricated the elastic conductor based on Ag-C sponge. Using the commercial sponge as supporting backbones, we assembled Ag nanowires on the sponge forming a dual network elastic conductor. The highly sensitive pressure sensors were fabricated based on the fracture structural design in RGO wrapped sponge and the potential application of as-fabricated pressure sensors in the electronic skin. Finally, the high photo-degradation active sponge was fabricated by the Ag nanowire assembly and oxidation.更多还原