Oriented Arrangement: The Origin of Versatility for Porous Graphene Materials

Wei Deng; Qile Fang; Heran Huang; Xufeng Zhou; Jingbo Ma; Zhaoping Liu

doi:10.1002/smll.201701231

Oriented Arrangement: The Origin of Versatility for Porous Graphene Materials

Small. 2017 Sep;13(34). doi: 10.1002/smll.201701231. Epub 2017 Jul 10.

Authors

Wei Deng^{1

2}, Qile Fang¹, Heran Huang¹, Xufeng Zhou¹, Jingbo Ma^{1

3}, Zhaoping Liu¹

Affiliations

¹ Key Laboratory of Graphene Technologies and Applications of Zhejiang Province and Advanced Li-Ion Battery Engineering Laboratory, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo, 315201, P. R. China.
² College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences (UCAS), Beijing, 100049, P. R. China.
³ The School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China.

PMID: 28692763
DOI: 10.1002/smll.201701231

Abstract

Macroscopic porous graphene materials composed of graphene sheets have demonstrated their advantageous aspects in diverse application areas. It is essential to maximize their excellent performances by rationally controlling the sheet arrangement and pore structure. Bulk porous graphene materials with oriented pore structure and arrangement of graphene sheets are prepared by marrying electrolyte-assisted self-assembly and shear-force-induced alignment of graphene oxide sheets, and the super elasticity and anisotropic mechanical, electrical, and thermal properties induced by this unique structure are systematically investigated. Its application in pressure sensing exhibits ultrahigh sensitivity of 313.23 kPa^-1 for detecting ultralow pressure variation below 0.5 kPa, and it shows high retention rate for continuously intercepting dye molecules with a high flux of ≈18.7 L m^-2 h^-1 bar^-1 and a dynamic removal rate of 510 mg m^-2 h^-1 .

Keywords: graphene; oriented arrangement; pollutant removal; porous structure; pressure sensors.

Publication types

Research Support, Non-U.S. Gov't