CoMoO4·0.9H2O nanorods grown on reduced graphene oxide as advanced electrochemical pseudocapacitor materials

In this work, one-dimensional CoMoO4·0.9H2O nanorods grown on reduced graphene oxide hybrid composites (CoMoO4·0.9H2O–rGO) with good electrochemical properties have been synthesized by a simple and environmentally friendly hydrothermal synthesis procedure. The conductive graphene not only improves the electron conductivity of the overall electrode but also provides strong synergistic effects with Faradaic pseudo-capacitance (CoMoO4·0.9H2O). Meanwhile, rGO can act as a buffer for the volume change, which can provide an assurance for better cycling performance of the CoMoO4·0.9H2O–rGO hybrid composites. An exceptionally high specific capacitance of 802.2 F g−1 at a current density of 1 A g−1 and good cycle stability with capacitance retention of ∼86.3% after 5000 cycles is obtained for the CoMoO4·0.9H2O–rGO composites. The remarkable electrochemical performance can make the CoMoO4·0.9H2O–rGO composites one of the most competitive electrode materials for electrochemical energy storage.

[1]  X. Lou,et al.  Mixed transition-metal oxides: design, synthesis, and energy-related applications. , 2014, Angewandte Chemie.

[2]  Xinzhi Yu,et al.  Super Long‐Life Supercapacitors Based on the Construction of Nanohoneycomb‐Like Strongly Coupled CoMoO4–3D Graphene Hybrid Electrodes , 2014, Advanced materials.

[3]  Sheng Liu,et al.  Inorganic nanostructured materials for high performance electrochemical supercapacitors. , 2014, Nanoscale.

[4]  Xin-bo Zhang,et al.  Electrostatic Induced Stretch Growth of Homogeneous β-Ni(OH)2 on Graphene with Enhanced High-Rate Cycling for Supercapacitors , 2014, Scientific Reports.

[5]  B. Liu,et al.  Comparison of the electrochemical performance of NiMoO4 nanorods and hierarchical nanospheres for supercapacitor applications. , 2013, ACS applied materials & interfaces.

[6]  C. Das,et al.  Synthesis, characterization and electrochemical performance of graphene decorated with 1D NiMoO4 · nH2O nanorods. , 2013, Nanoscale.

[7]  S. Ramakrishna,et al.  In situ growth of NiCo(2)S(4) nanosheets on graphene for high-performance supercapacitors. , 2013, Chemical communications.

[8]  Jianjun Jiang,et al.  Rapid microwave-assisted synthesis NiMoO4·H2O nanoclusters for supercapacitors , 2013 .

[9]  Rujia Zou,et al.  Self-assembling hybrid NiO/Co3O4 ultrathin and mesoporous nanosheets into flower-like architectures for pseudocapacitance , 2013 .

[10]  Q. Hao,et al.  One-step synthesis of CoMoO4/graphene composites with enhanced electrochemical properties for supercapacitors , 2013 .

[11]  Q. Li,et al.  Facile synthesis and excellent electrochemical properties of CoMoO4 nanoplate arrays as supercapacitors , 2013 .

[12]  Xiaojing Yang,et al.  Sandwich-structural graphene-based metal oxides as anode materials for lithium-ion batteries , 2013 .

[13]  L. Kong,et al.  Facile synthesis of NiMoO4·xH2O nanorods as a positive electrode material for supercapacitors , 2013 .

[14]  Yuanyuan Li,et al.  Construction of high-capacitance 3D CoO@polypyrrole nanowire array electrode for aqueous asymmetric supercapacitor. , 2013, Nano letters.

[15]  Shuhong Yu,et al.  Flexible graphene–polyaniline composite paper for high-performance supercapacitor , 2013 .

[16]  Zhenan Bao,et al.  Hybrid nanostructured materials for high-performance electrochemical capacitors , 2013 .

[17]  Bin Liu,et al.  NiCo2O4 nanowire arrays supported on Ni foam for high-performance flexible all-solid-state supercapacitors , 2013 .

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

[19]  L. Kong,et al.  Design and synthesis of CoMoO4–NiMoO4·xH2O bundles with improved electrochemical properties for supercapacitors , 2013 .

[20]  Hua Zhang,et al.  Graphene‐Based Electrodes , 2012, Advanced materials.

[21]  L. Kong,et al.  Hydrothermal process for the fabrication of CoMoO4·0.9H2O nanorods with excellent electrochemical behavior , 2012 .

[22]  Hua Zhang,et al.  Nanoporous Walls on Macroporous Foam: Rational Design of Electrodes to Push Areal Pseudocapacitance , 2012, Advanced materials.

[23]  Shuhong Yu,et al.  Synthesis of nitrogen-doped porous carbon nanofibers as an efficient electrode material for supercapacitors. , 2012, ACS nano.

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

[25]  Qiang Zhang,et al.  Advanced Asymmetric Supercapacitors Based on Ni(OH)2/Graphene and Porous Graphene Electrodes with High Energy Density , 2012 .

[26]  B. S. Amirkhiz,et al.  Supercapacitive carbon nanotube-cobalt molybdate nanocomposites prepared via solvent-free microwave synthesis , 2012 .

[27]  W. Hu,et al.  Spherical α-Ni(OH)2 nanoarchitecture grown on graphene as advanced electrochemical pseudocapacitor materials. , 2012, Chemical communications.

[28]  Teng Zhai,et al.  WO3–x@Au@MnO2 Core–Shell Nanowires on Carbon Fabric for High‐Performance Flexible Supercapacitors , 2012, Advanced materials.

[29]  Lei Zhang,et al.  A review of electrode materials for electrochemical supercapacitors. , 2012, Chemical Society reviews.

[30]  Haijiao Zhang,et al.  Monolayer graphene/NiO nanosheets with two-dimension structure for supercapacitors , 2011 .

[31]  Teng Zhai,et al.  Facile synthesis of large-area manganese oxide nanorod arrays as a high-performance electrochemical supercapacitor , 2011 .

[32]  Yunlong Zhao,et al.  Hierarchical MnMoO(4)/CoMoO(4) heterostructured nanowires with enhanced supercapacitor performance. , 2011, Nature communications.

[33]  R. Ruoff,et al.  Carbon-Based Supercapacitors Produced by Activation of Graphene , 2011, Science.

[34]  Shaojun Guo,et al.  Graphene nanosheet: synthesis, molecular engineering, thin film, hybrids, and energy and analytical applications. , 2011, Chemical Society reviews.

[35]  M. Qu,et al.  Improved performances of β-Ni(OH)2@reduced-graphene-oxide in Ni-MH and Li-ion batteries. , 2011, Chemical communications.

[36]  Huaqiang Cao,et al.  ZnO@graphene composite with enhanced performance for the removal of dye from water , 2011 .

[37]  A. J. Frank,et al.  Microstructure and pseudocapacitive properties of electrodes constructed of oriented NiO-TiO2 nanotube arrays. , 2010, Nano letters.

[38]  Feng Li,et al.  High-energy MnO2 nanowire/graphene and graphene asymmetric electrochemical capacitors. , 2010, ACS nano.

[39]  Zhongjie Huang,et al.  Preparation of mesoporous NiO with a bimodal pore size distribution and application in electrochemical capacitors , 2010 .

[40]  Pooi See Lee,et al.  Facile coating of manganese oxide on tin oxide nanowires with high-performance capacitive behavior. , 2010, ACS Nano.

[41]  H. Dai,et al.  Ni(OH)2 nanoplates grown on graphene as advanced electrochemical pseudocapacitor materials. , 2010, Journal of the American Chemical Society.

[42]  Chang Liu,et al.  Advanced Materials for Energy Storage , 2010, Advanced materials.

[43]  C. M. Li,et al.  Synthesis, Characterization, and Lithium Storage Capability of AMoO4 (A = Ni, Co) Nanorods† , 2010 .

[44]  F. Wei,et al.  Preparation of a graphene nanosheet/polyaniline composite with high specific capacitance , 2010 .

[45]  Shih‐Yuan Lu,et al.  A Cost‐Effective Supercapacitor Material of Ultrahigh Specific Capacitances: Spinel Nickel Cobaltite Aerogels from an Epoxide‐Driven Sol–Gel Process , 2010, Advanced materials.

[46]  H. Dai,et al.  Solvothermal reduction of chemically exfoliated graphene sheets. , 2009, Journal of the American Chemical Society.

[47]  Y. Gogotsi,et al.  Materials for electrochemical capacitors. , 2008, Nature materials.

[48]  Andre K. Geim,et al.  Raman spectrum of graphene and graphene layers. , 2006, Physical review letters.

[49]  S. Pitchumani,et al.  New symmetric and asymmetric supercapacitors based on high surface area porous nickel and activated carbon , 2006 .

[50]  V. L. Parola,et al.  Structural characterisation of silica supported CoMo catalysts by UV Raman spectroscopy, XPS and X-ray diffraction techniques , 2002 .

[51]  T. Hu,et al.  EFFECT OF COBALT PROMOTER ON CO-MO-K/C CATALYSTS USED FOR MIXED ALCOHOL SYNTHESIS , 2001 .

[52]  J. L. Brito,et al.  Effect of Phase Composition of the Oxidic Precursor on the HDS Activity of the Sulfided Molybdates of Fe(II), Co(II), and Ni(II) , 1997 .