Naturally Dried Graphene Aerogels with Superelasticity and Tunable Poisson's Ratio

Xiang Xu; Qiangqiang Zhang; Yikang Yu; Wenli Chen; Han Hu; Hui Li

doi:10.1002/adma.201603079

Naturally Dried Graphene Aerogels with Superelasticity and Tunable Poisson's Ratio

Adv Mater. 2016 Nov;28(41):9223-9230. doi: 10.1002/adma.201603079. Epub 2016 Sep 5.

Authors

Xiang Xu^{1

2}, Qiangqiang Zhang^{3

4

5}, Yikang Yu^{3

4}, Wenli Chen^{3

4}, Han Hu⁶, Hui Li^{7

8}

Affiliations

¹ Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education (Harbin Institute of Technology), Harbin, 150090, P. R. China. xuxiang@hit.edu.cn.
² Center of Structural Health Monitoring and Control, School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China. xuxiang@hit.edu.cn.
³ Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education (Harbin Institute of Technology), Harbin, 150090, P. R. China.
⁴ Center of Structural Health Monitoring and Control, School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China.
⁵ School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, 743311, P. R. China.
⁶ Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China.
⁷ Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education (Harbin Institute of Technology), Harbin, 150090, P. R. China. lihui@hit.edu.cn.
⁸ Center of Structural Health Monitoring and Control, School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China. lihui@hit.edu.cn.

PMID: 27594204
DOI: 10.1002/adma.201603079

Abstract

A novel natural drying (ND) strategy for low-cost and simple fabrication of graphene aerogels (GAs) is highlighted. The as-formed NDGAs exhibit ultralarge reversible compressibility (99%) and tunable Poisson's ratio behaviors (-0.30 < ν < 0.46), which suggests promising applications in soft actuators, soft robots, sensors, deformable electronic devices, drug release, thermal insulator, and protective materials.

Keywords: graphene aerogels; natural drying; superelasticity; tunable Poisson's ratio.