Three‐Dimensional Shape Engineered, Interfacial Gelation of Reduced Graphene Oxide for High Rate, Large Capacity Supercapacitors

DOI: 10.1002/adma.201303503 Assembly of graphene into functional macroscopic objects, such as fi lms, [ 1 ] sheets, [ 2 ] fi bers, [ 3 ] foams, [ 4,5 ] and other complex architectures, [ 6 ] is of enormous research interest. How to attain desired structures in a cost effective and manufacturable manner is crucial for energy harvest/storage, catalysis, sensors and so on. Unlike fullerene or carbon nanotubes, whose assembly generally relies on weak van der Walls force or chemical modifi cation, two-dimensional graphene may straightforwardly exploit strong interlayer π – π stacking. Unfortunately, such a strong and directional interaction frequently results in graphitic stacking with minimal surface area. [ 7,8 ]

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

[2]  Elise M. Stewart,et al.  A Single Component Conducting Polymer Hydrogel as a Scaffold for Tissue Engineering , 2012 .

[3]  J. Ouyang,et al.  Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature , 2011 .

[4]  L. Dai,et al.  Nitrogen-doped graphene foams as metal-free counter electrodes in high-performance dye-sensitized solar cells. , 2012, Angewandte Chemie.

[5]  Fenglin Yang,et al.  Covalent assembly of 3D graphene/polypyrrole foams for oil spill cleanup , 2013 .

[6]  G. Shi,et al.  High-performance supercapacitor electrodes based on graphene hydrogels modified with 2-aminoanthraquinone moieties. , 2011, Physical chemistry chemical physics : PCCP.

[7]  Xinming Li,et al.  Large‐Area Flexible Core–Shell Graphene/Porous Carbon Woven Fabric Films for Fiber Supercapacitor Electrodes , 2013 .

[8]  A. Biswas,et al.  Graphene oxide-based hydrogels to make metal nanoparticle-containing reduced graphene oxide-based functional hybrid hydrogels. , 2012, ACS applied materials & interfaces.

[9]  Malav S. Desai,et al.  Light-controlled graphene-elastin composite hydrogel actuators. , 2013, Nano letters.

[10]  Y. Gogotsi,et al.  True Performance Metrics in Electrochemical Energy Storage , 2011, Science.

[11]  Chun-yan Liu,et al.  Au/graphene hydrogel: synthesis, characterization and its use for catalytic reduction of 4-nitrophenol , 2012 .

[12]  Lifeng Yan,et al.  In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures. , 2011, Nanoscale.

[13]  Yanwu Zhu,et al.  Highly conductive and porous activated reduced graphene oxide films for high-power supercapacitors. , 2012, Nano letters.

[14]  A. Hollenkamp,et al.  Carbon properties and their role in supercapacitors , 2006 .

[15]  Dan Li,et al.  Ordered gelation of chemically converted graphene for next-generation electroconductive hydrogel films. , 2011, Angewandte Chemie.

[16]  G. Shi,et al.  Self-assembled graphene hydrogel via a one-step hydrothermal process. , 2010, ACS nano.

[17]  R. Baughman,et al.  Carbon Nanotubes: Present and Future Commercial Applications , 2013, Science.

[18]  K. Hata,et al.  Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes , 2006, Nature materials.

[19]  H. Dai,et al.  Highly conducting graphene sheets and Langmuir-Blodgett films. , 2008, Nature nanotechnology.

[20]  Peihua Huang,et al.  Ultrahigh-power micrometre-sized supercapacitors based on onion-like carbon. , 2010, Nature nanotechnology.

[21]  J. Tascón,et al.  Vitamin C Is an Ideal Substitute for Hydrazine in the Reduction of Graphene Oxide Suspensions , 2010 .

[22]  P. Ajayan,et al.  Ultrathin planar graphene supercapacitors. , 2011, Nano letters.

[23]  G. Wallace,et al.  Processable aqueous dispersions of graphene nanosheets. , 2008, Nature nanotechnology.

[24]  M. El‐Kady,et al.  Laser Scribing of High-Performance and Flexible Graphene-Based Electrochemical Capacitors , 2012, Science.

[25]  Lan Jiang,et al.  Highly Compression‐Tolerant Supercapacitor Based on Polypyrrole‐mediated Graphene Foam Electrodes , 2013, Advanced materials.

[26]  G. Wallace,et al.  Mechanically Strong, Electrically Conductive, and Biocompatible Graphene Paper , 2008 .

[27]  Shing‐Jong Huang,et al.  Supplementary Information for , 2013 .

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

[29]  Andreas Winter,et al.  Three‐Dimensional Nitrogen and Boron Co‐doped Graphene for High‐Performance All‐Solid‐State Supercapacitors , 2012, Advanced materials.

[30]  Dan Li,et al.  Biomimetic superelastic graphene-based cellular monoliths , 2012, Nature Communications.

[31]  Junwu Zhu,et al.  Bioinspired Effective Prevention of Restacking in Multilayered Graphene Films: Towards the Next Generation of High‐Performance Supercapacitors , 2011, Advanced materials.

[32]  G. Shi,et al.  Graphene Hydrogels Deposited in Nickel Foams for High‐Rate Electrochemical Capacitors , 2012, Advanced materials.

[33]  Chi Cheng,et al.  Self‐Supporting Graphene Hydrogel Film as an Experimental Platform to Evaluate the Potential of Graphene for Bone Regeneration , 2013 .

[34]  P. Ajayan,et al.  Carbon nanotube-nanocup hybrid structures for high power supercapacitor applications. , 2012, Nano letters.

[35]  Youyi Xia,et al.  Polyaniline nanofiber-reinforced conducting hydrogel with unique pH-sensitivity , 2011 .

[36]  Chi Cheng,et al.  Liquid-Mediated Dense Integration of Graphene Materials for Compact Capacitive Energy Storage , 2013, Science.

[37]  Khalil Amine,et al.  Chemically active reduced graphene oxide with tunable C/O ratios. , 2011, ACS nano.

[38]  Changsheng Liu,et al.  Flexible pillared graphene-paper electrodes for high-performance electrochemical supercapacitors. , 2012, Small.

[39]  Jiayan Luo,et al.  Material processing of chemically modified graphene: some challenges and solutions. , 2013, Accounts of chemical research.