389467 Preparation of High Performance Graphene Fibers By Wet-Spinning Method

Tuesday, November 18, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Chunyan Zhao1, Songzhao Tong1, Shenbin Mo1, Jian Wang1, Tianju Fan1, Wei Tang1, Chunqiu Yuan1, Yidong Liu2 and Yong G. Min1, (1)Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, China, (2)State Key Laboratory of Organic Electronics and Information Displays at Yancheng, Yancheng, China

In this study, we use lamellar graphite to prepare GO, and then integrate the large GO sheets into macroscopic fibers by wet-spinning method. We use amines alcohol solution as a new kind coagulation liquid. In the process, meters-long graphene fibers were continuously spun from GO suspensions followed by thermal reduction. By varying wet-spinning conditions, a series of graphene fibers were prepared, then, the performances of the fibers were investigated, through all of these works we find the optimal conditions to fabricating high mechanical strength graphene fibers. The as-prepared graphene fibers’s mechanical strength mechanical strength can be achieved 200 MPa, and they possessed with good flexibility, the electronic conductivity reached 38 S/cm.

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See more of this Session: Poster Session: Nanoscale Science and Engineering
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