Electrospinning fabrication and in situ mechanical investigation of individual graphene nanoribbon reinforced carbon nanofiber

Studies from Chongqing University Further Understanding of Carbon Research (Electrospinning fabrication and in situ mechanical investigation of individual graphene nanoribbon reinforced carbon nanofiber)

By a News Reporter-Staff News Editor at Science Letter — A new study on Carbon Research is now available. According to news reporting from Chongqing, People’s Republic of China, by NewsRx journalists, research stated, “Graphene nanoribbons (GNRs) with opened edges and less structural defects are embedded in polyacrylonitrile (PAN)-based carbon nanofibers (CNFs) by electrospinning followed by stabilization and carbonization. GNRs not only can be used as one-dimensional nanofillers, but also act as nanoplatelet template to promote the formation of graphitic carbon in PAN matrix.”

Funders for this research include Natural Science Foundation Project of CQ CSTC CHINA, China Scholarship Council, US Air Force Office of Scientific Research, US Department of Energy, Office of Basic Energy Sciences (see also Carbon Research).

The news correspondents obtained a quote from the research from Chongqing University, “X-ray diffraction, Raman spectroscopy and N2 absorption are used to analyze the microstructure of GNR-reinforced CNFs. In situ tensile test using a micromechanical device inside a scanning electron microscope (SEM) is carried out to evaluate the mechanical performance of individual GNR-reinforced CNF. The tensile strength and elastic modulus of CNFs reinforced by 2 wt% GNRs with a diameter of 160 nm are 3.52 GPa and 70.07 GPa, respectively, which are higher than those of pristine PAN CNFs with similar size, i.e. 2.44 GPa and 28.97 GPa. The rough fracture surface for all GNR-reinforced CNFs suggests that the GNRs can dramatically toughen the fibers. A sword-in-sheath failure is observed in 4 wt% GNR reinforced CNFs, confirming that GNRs are entirely embedded and well aligned along the fiber axis.”

According to the news reporters, the research concluded: “This study demonstrates the potential of GNRs as a promising reinforcement to improve the formation of graphitic carbon and mechanical performance of CNFs.”

For more information on this research see: Electrospinning fabrication and in situ mechanical investigation of individual graphene nanoribbon reinforced carbon nanofiber. Carbon, 2017;114():717-723. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier – http://www.elsevier.com; Carbon – http://www.journals.elsevier.com/carbon/)

Our news journalists report that additional information may be obtained by contacting X.L. Li, Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400030, People’s Republic of China. Additional authors for this research include Y.C. Yang, Y.J. Zhao, J. Lou, X.Y. Zhao, R.H. Wang, Q.H. Liang and Z.H. Huang.

Keywords for this news article include: Chongqing, People’s Republic of China, Asia, Carbon Research, Chongqing University.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2017, NewsRx LLC

(c) 2017 NewsRx LLC, source Health Newsletters

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