Development of carbon nanofibers from aligned electrospun polyacrylonitrile nanofiber bundles and characterization of their microstructural, electrical, and mechanical properties

Abstract Carbon nanofibers with diameters of 200–300 nm were developed through stabilization and carbonization of aligned electrospun polyacrylonitrile (PAN) nanofiber bundles. Prior to the oxidative stabilization in air, the electrospun PAN nanofiber bundle was tightly wrapped onto a glass rod, so that tension existed during the stabilization. We also investigated several carbonization procedures by varying final carbonization temperatures in the range from 1000 to 2200 °C. The study revealed that: (1) with increase of the final carbonization temperature, the carbon nanofibers became more graphitic and structurally ordered; (2) the carbon nanofiber bundles possessed anisotropic electrical conductivities, and the differences between the parallel and perpendicular directions to the bundle axes were over 20 times; and (3) the tensile strengths and Young's moduli of the prepared carbon nanofiber bundles were in the ranges of 300–600 MPa and 40–60 GPa, respectively.

[1]  K. Yang,et al.  Preparations of pitch-based CF/ACF webs by electrospinning , 2003 .

[2]  Park Tae Jin,et al.  Raman spectroscopic evaluation of polyacrylonitrile‐based carbon nanofibers prepared by electrospinning , 2004 .

[3]  D. Reneker,et al.  Mechanical characterization of single high-strength electrospun polyimide nanofibres , 2008 .

[4]  Eyal Zussman,et al.  Mechanical and structural characterization of electrospun PAN-derived carbon nanofibers , 2005 .

[5]  M. Dresselhaus,et al.  Structural characterization of milled mesophase pitch-based carbon fibers , 1998 .

[6]  R. Chang,et al.  Supercarbon : synthesis, properties and applications , 1998 .

[7]  Dawei Zhang,et al.  Carbon nanofibers: Synthesis, characterization, and electrochemical properties , 2006 .

[8]  Darrell H. Reneker,et al.  Bending instability of electrically charged liquid jets of polymer solutions in electrospinning , 2000 .

[9]  Sagar Mitra,et al.  Electrochemical capacitors with plasticized gel-polymer electrolytes , 2001 .

[10]  Y. Dzenis,et al.  Spinning Continuous Fibers for Nanotechnology , 2004, Science.

[11]  Peter Morgan,et al.  Carbon Fibers and Their Composites , 2005 .

[12]  Stephen Z. D. Cheng,et al.  Electrospun polyacrylonitrile nanofibers containing a high concentration of well-aligned multiwall carbon nanotubes , 2005 .

[13]  D. Reneker,et al.  Nanometre diameter fibres of polymer, produced by electrospinning , 1996 .

[14]  Xiaoping Zhou,et al.  Novel Pd-carrying composite carbon nanofibers based on polyacrylonitrile as a catalyst for Sonogashira coupling reaction , 2008 .

[15]  Darrell H. Reneker,et al.  Carbon nanofibers from polyacrylonitrile and mesophase pitch , 1999 .

[16]  R. Mathur,et al.  Single step carbonization and graphitization of highly stabilized PAN fibers , 1997 .

[17]  Bruce Dunn,et al.  Three-dimensional battery architectures. , 2004, Chemical reviews.

[18]  H. Nalwa.  Polymeric Nanostructures And Their Applications , 2007 .

[19]  Darrell H. Reneker,et al.  Beaded nanofibers formed during electrospinning , 1999 .

[20]  Darrell H. Reneker,et al.  Carbon Nanotubes on Carbon Nanofibers: A Novel Structure Based on Electrospun Polymer Nanofibers , 2004 .

[21]  C. Kim,et al.  Electrochemical properties of carbon nanofiber web as an electrode for supercapacitor prepared by electrospinning , 2003 .

[22]  Andreas Greiner,et al.  Electrospinning: a fascinating method for the preparation of ultrathin fibers. , 2007, Angewandte Chemie.

[23]  Young Hee Lee,et al.  Anisotropic electrical conductivity of MWCNT/PAN nanofiber paper , 2005 .

[24]  Haihui Ye,et al.  Electrospinning of Continuous Carbon Nanotube‐Filled Nanofiber Yarns , 2003 .

[25]  Yu Huang,et al.  Indium phosphide nanowires as building blocks for nanoscale electronic and optoelectronic devices , 2001, Nature.

[26]  D. Reneker,et al.  Growth of carbon nanostructures on carbonized electrospun nanofibers with palladium nanoparticles , 2008, Nanotechnology.

[27]  J. Casado,et al.  Raman spectroscopic characterization of some commercially available carbon black materials , 1995 .

[28]  S. Jeelani,et al.  Thermal and tensile properties of aligned carbon nanofiber reinforced polypropylene , 2007 .