Novel Preparation, Microstructure, and Properties of Polyacrylonitrile-Based Carbon Nanofiber-Graphene Nanoplatelet Materials

被引：29
|
作者：
Wu, Xiaowen [1 ,2 ]
Mahalingam, Suntharavathanan [2 ]
Amir, Amalina [2 ]
Porwal, Harshit [3 ]
Reece, Mike J. [3 ]
Naglieri, Valentina [4 ]
Colombo, Paolo [4 ]
Edirisinghe, Mohan [2 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, 29 Xueyuan Rd, Beijing 100083, Peoples R China
[2] UCL, Dept Mech Engn, Torrington Pl, London WC1E 7JE, England
[3] Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England
[4] Univ Padua, Dept Ind Engn, Via Marzolo, I-35131 Padua, Italy
来源：
ACS OMEGA | 2016年 / 1卷 / 02期
基金：
中国国家自然科学基金; 英国工程与自然科学研究理事会;
关键词：
PRESSURIZED GYRATION; RAMAN-SPECTROSCOPY; COMPOSITE; FILMS; PRECURSOR; FIBERS;
D O I：
10.1021/acsomega.6b00063
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polyacrylonitrile (PAN) fibers containing various concentrations of graphene nanoplatelets (GNPs) were prepared by pressurized gyration, and carbon nanofibers (CNFs) were obtained after subsequent heat treatment and spark plasma sintering (SPS). The influence of processing parameters such as rotational speed, working pressure, carbonization, and SPS temperature on the diameter of the nanofibers has been studied. Furthermore, the thermal properties, morphologies, and crystallization properties of the CNFs have been investigated by using thermogravimetry, scanning and transmission electron microscopy, and Raman spectroscopy. Also, the electrical conductivity and the mechanical properties of these samples have been studied. The results suggest that the gyration conditions and the loading concentration of the GNPs significantly modified the properties of the nanofibers.
引用
收藏
页码：202 / 211
页数：10
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