Large-scale synthesis of reduced graphene oxides with uniformly coated polyaniline for supercapacitor applications.

We report an effective route for the preparation of layered reduced graphene oxide (rGO) with uniformly coated polyaniline (PANI) layers. These nanocomposites are synthesized by chemical oxidative polymerization of aniline monomer in the presence of layered rGO. SEM, TEM, X-ray photoelectron spectroscopy (XPS), FTIR, and Raman spectroscopy analysis results demonstrated that reduced graphene oxide-polyaniline (rGO-PANI) nanocomposites are successfully synthesized. Because of synergistic effects, rGO-PANI nanocomposites prepared by this approach exhibit excellent capacitive performance with a high specific capacitance of 286 F g(-1) and high cycle reversibility of 94 % after 2000 cycles.

[1]  F. Béguin,et al.  Supercapacitors based on conducting polymers/nanotubes composites , 2006 .

[2]  S. Im,et al.  Preparation and characterization of polyaniline nanoparticles synthesized from DBSA micellar solution , 2002 .

[3]  Chi-Chang Hu,et al.  Electrochemical and textural characterization of iridium-doped polyaniline films for electrochemical capacitors , 2000 .

[4]  Ying Wang,et al.  Preparation, Structure, and Electrochemical Properties of Reduced Graphene Sheet Films , 2009 .

[5]  D. Dhawale,et al.  An approach towards the growth of polyaniline nanograins by electrochemical route , 2009 .

[6]  R. Kaner,et al.  Polyaniline nanofibers: a unique polymer nanostructure for versatile applications. , 2009, Accounts of chemical research.

[7]  Heejoon Ahn,et al.  Binary metal hydroxide nanorods and multi-walled carbon nanotube composites for electrochemical energy storage applications , 2012 .

[8]  R. Lillard.  Factors Influencing the Transition from Metastable to Stable Pitting in Single-Crystal Beryllium , 2001 .

[9]  P. Simon,et al.  Polythiophene-based supercapacitors , 1999 .

[10]  P. Ajayan,et al.  Multisegmented Au-MnO2/Carbon Nanotube Hybrid Coaxial Arrays for High-Power Supercapacitor Applications , 2010 .

[11]  G. Lu,et al.  Fabrication of Graphene/Polyaniline Composite Paper via In Situ Anodic Electropolymerization for High-Performance Flexible Electrode. , 2009, ACS nano.

[12]  Yongsheng Chen,et al.  An overview of the applications of graphene-based materials in supercapacitors. , 2012, Small.

[13]  M. Wan,et al.  A Template‐Free Method Towards Conducting Polymer Nanostructures , 2008 .

[14]  D. Bélanger,et al.  Electrochemical Characterization of Polyaniline in Nonaqueous Electrolyte and Its Evaluation as Electrode Material for Electrochemical Supercapacitors , 2001 .

[15]  Dan Li,et al.  One‐Dimensional Conducting Polymer Nanostructures: Bulk Synthesis and Applications , 2009 .

[16]  Anran Liu,et al.  Supercapacitors based on flexible graphene/polyaniline nanofiber composite films. , 2010, ACS nano.

[17]  A. Monkman,et al.  Optical and electronic properties of stretch-oriented solution-cast polyaniline films , 1991 .

[18]  M. Bernard,et al.  Quantitative characterization of polyaniline films using Raman spectroscopy: I: Polaron lattice and bipolaron , 2006 .

[19]  Soon Ho Chang,et al.  Symmetric redox supercapacitor with conducting polyaniline electrodes , 2002 .

[20]  R. Ruoff,et al.  Graphene-based ultracapacitors. , 2008, Nano letters.

[21]  Pooi See Lee,et al.  3D carbon based nanostructures for advanced supercapacitors , 2013 .

[22]  L. Dai,et al.  Polyaniline-grafted reduced graphene oxide for efficient electrochemical supercapacitors. , 2012, ACS nano.

[23]  D. A. Brownson,et al.  Graphene electrochemistry: fundamental concepts through to prominent applications. , 2012, Chemical Society reviews.

[24]  Yongsheng Chen,et al.  SUPERCAPACITOR DEVICES BASED ON GRAPHENE MATERIALS , 2009 .

[25]  Koon Gee Neoh,et al.  POLYANILINE: A POLYMER WITH MANY INTERESTING INTRINSIC REDOX STATES , 1998 .

[26]  M. Wan,et al.  Structure and electrical properties of the oriented polyaniline films , 1994 .

[27]  G. Shi,et al.  Conducting polymer nanomaterials: electrosynthesis and applications. , 2009, Chemical Society reviews.

[28]  A. Govindaraj,et al.  Graphene: the new two-dimensional nanomaterial. , 2009, Angewandte Chemie.

[29]  Kai Zhang,et al.  Graphene/Polyaniline Nanofiber Composites as Supercapacitor Electrodes , 2010 .

[30]  Andre K. Geim,et al.  The rise of graphene. , 2007, Nature materials.

[31]  M. Bernard,et al.  Quantitative characterization of polyaniline films using Raman spectroscopy: II. Effects of self-doping in sulfonated polyaniline , 2006 .

[32]  Ran Liu,et al.  MnO2/poly(3,4-ethylenedioxythiophene) coaxial nanowires by one-step coelectrodeposition for electrochemical energy storage. , 2008, Journal of the American Chemical Society.

[33]  Gang Yang,et al.  Polyaniline/Au composite hollow spheres: synthesis, characterization, and application to the detection of dopamine. , 2006, Langmuir : the ACS journal of surfaces and colloids.

[34]  Vinay Gupta,et al.  Electrochemically Deposited Polyaniline Nanowire’s Network A High-Performance Electrode Material for Redox Supercapacitor , 2005 .

[35]  Shimshon Gottesfeld,et al.  Conducting polymers as active materials in electrochemical capacitors , 1994 .

[36]  Quli Fan,et al.  One‐Step Electrochemical Synthesis of Graphene/Polyaniline Composite Film and Its Applications , 2011 .

[37]  Weiwei Cai,et al.  Graphene oxide papers modified by divalent ions-enhancing mechanical properties via chemical cross-linking. , 2008, ACS nano.

[38]  Shaomin Liu,et al.  Chemical approaches toward graphene-based nanomaterials and their applications in energy-related areas. , 2012, Small.

[39]  V. Gelman,et al.  Characteristics and microstructure of aqueous colloidal dispersions of graphite oxide , 2005 .

[40]  Jingjing Xu,et al.  Hierarchical nanocomposites of polyaniline nanowire arrays on graphene oxide sheets with synergistic effect for energy storage. , 2010, ACS nano.

[41]  A. Govindaraj,et al.  Graphene-based electrochemical supercapacitors , 2008 .

[42]  K. Subrahmanyam,et al.  Graphen, das neue zweidimensionale Nanomaterial , 2009 .

[43]  F. Béguin,et al.  Supercapacitors from nanotubes/polypyrrole composites , 2001 .