Highly compressible 3D periodic graphene aerogel microlattices

被引：975

作者：

Zhu, Cheng ^{[1
]}

Han, T. Yong-Jin ^{[1
]}

Duoss, Eric B. ^{[1
]}

Golobic, Alexandra M. ^{[1
]}

Kuntz, Joshua D. ^{[1
]}

Spadaccini, Christopher M. ^{[1
]}

Worsley, Marcus A. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

NATURE COMMUNICATIONS | 2015年 / 6卷

关键词：

ELASTIC-MODULUS; SURFACE-AREA; ULTRALIGHT; INDENTATION; RHEOLOGY; HARDNESS; SHEETS; OXIDE;

D O I：

10.1038/ncomms7962

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Graphene is a two-dimensional material that offers a unique combination of low density, exceptional mechanical properties, large surface area and excellent electrical conductivity. Recent progress has produced bulk 3D assemblies of graphene, such as graphene aerogels, but they possess purely stochastic porous networks, which limit their performance compared with the potential of an engineered architecture. Here we report the fabrication of periodic graphene aerogel microlattices, possessing an engineered architecture via a 3D printing technique known as direct ink writing. The 3D printed graphene aerogels are lightweight, highly conductive and exhibit supercompressibility (up to 90% compressive strain). Moreover, the Young's moduli of the 3D printed graphene aerogels show an order of magnitude improvement over bulk graphene materials with comparable geometric density and possess large surface areas. Adapting the 3D printing technique to graphene aerogels realizes the possibility of fabricating a myriad of complex aerogel architectures for a broad range of applications.

引用

页数：8

共 59 条

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