Publications논문

Three-dimensionally bonded spongy graphene material with super compressive elasticity and near-zero Poisson’s ratio
2015-01-20 12:56:27 조회수825
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 Lima, Nestor 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 Affiliations Key Laboratory for Functional Polymer Materials and The Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China Yingpeng Wu, Ningbo Yi, Lu Huang, Tengfei Zhang, Huicong Chang, Na Li, Peishuang Xiao, Guankui Long, Yi Huang, Fan Zhang, Long Zhang & Yongsheng Chen Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75083, USA Shaoli Fang, Na Li, Jiyoung Oh, Jae Ah Lee, Mikhail Kozlov, Xavier Lepró, Carter Haines, Márcio Dias Lima, Ali Aliev & Ray H. Baughman Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, South Korea Jae Ah Lee & Seon Jeong Kim Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77005, USA Alin C. Chipara, N. T. Narayanan & Pulickel M. Ajayan Department of Physics and Materials Research Institute, The Pennsylvania State University, 104 Davey Lab, University Park, Pennsylvania 16802, USA Humberto Terrones, Nestor Perea Lopez, Lakshmy P. Rajukumar, Ana L. Elias, Simin Feng & Mauricio Terrones National Centre for Nanoscience and Technology, Beijing 100190, China Pengfei Chu & Zhong Zhang 원문 링크 : http://www.nature.com/ncomms/2015/150120/ncomms7141/full/ncomms7141.html

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.


 
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