Three-dimensionally bonded spongy graphene material with super compressive elasticity and near-zero Poisson's ratio

Yingpeng Wu, Ningbo Yi, Lu Huang, Tengfei Zhang, Shaoli Fang, Huicong Chang, Na Li, Jiyoung Oh, Jae Ah Lee, Mikhail Kozlov, Alin C. Chipara, Humberto Terrones, Peishuang Xiao, Guankui Long, Yi Huang, Fan Zhang, Long Zhang, Xavier Lepró, Carter Haines, Márcio Dias LimaNestor Perea Lopez, Lakshmy P. Rajukumar, Ana L. Elias, Simin Feng, Seon Jeong Kim, N. T. Narayanan, Pulickel M. Ajayan, Mauricio Terrones, Ali Aliev, Pengfei Chu, Zhong Zhang, Ray H. Baughman, Yongsheng Chen

Research output: Contribution to journalArticlepeer-review

331 Scopus citations

Abstract

It is a challenge to fabricate graphene bulk materials with properties arising from the nature of individual graphene sheets, and which assemble into monolithic three-dimensional structures. Here we report the scalable self-assembly of randomly oriented graphene sheets into additive-free, essentially homogenous graphene sponge materials that provide a combination of both cork-like and rubber-like properties. These graphene sponges, with densities similar to air, display Poisson's ratios in all directions that are near-zero and largely strain-independent during reversible compression to giant strains. And at the same time, they function as enthalpic rubbers, which can recover up to 98% compression in air and 90% in liquids, and operate between 196 and 900 °C. Furthermore, these sponges provide reversible liquid absorption for hundreds of cycles and then discharge it within seconds, while still providing an effective near-zero Poisson's ratio.

Original languageEnglish (US)
Article number6141
JournalNature communications
Volume6
DOIs
StatePublished - Jan 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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