Abstract
We report on a non-covalent functionalization of graphene foam (GF) synthesized via chemical vapour deposition (CVD). The GF was treated with pyrene carboxylic acid (PCA) which acted as a source of oxygen and/or hydroxyl groups attached to the surface of the graphene foam for its electrochemical performance improvement. The modified graphene surface enabled a high pseudocapacitive effect on the GF. A specific capacitance of 133.3 F g−1, power density ∼ 145.3 kW kg−1 and energy density ∼ 4.7 W h kg−1 were achieved based on the functionalized foam in 6 M KOH aqueous electrolyte. The results suggest that non-covalent functionalization might be an effective approach to overcome the restacking problem associated with graphene electrodes and also signify the importance of surface functionalities in graphene-based electrode materials.
Similar content being viewed by others
References
Geim A, Novoselov KS (2007) The rise of graphene. Nat Mater 6:183–191
Balandin A, Ghosh S, Bao W (2008) Superior thermal conductivity of single-layer graphene. Nano Lett 8:907
Novoselov KS, Geim A, Morozov SV, Jiang D, Zhang Y, Dubonos SV, Grigorieva IV, Firsov AA (2004) Electric field effect in atomically thin carbon films. Science 306:666–669
Lee C, Wei X, Kysar JW, Hone J (2008) Measurement of the elastic properties and intrinsic strength of monolayer graphene. Science 321:385–388
Zhu Y, James DK, Tour JM (2012) New routes to graphene, graphene oxide and their related applications. Adv Mater 24:4924–4955
Chen D, Feng H, Li J (2012) Graphene oxide: preparation, functionalization, and electrochemical applications. Chem Rev 112:6027–6053
Zhu Y, Murali S, Cai W, Li X, Suk JW, Potts JR, Ruoff RS (2010) Graphene and graphene oxide: synthesis, properties, and applications. Adv Mater 22:3906–3924
Dua V, Surwade SP, Ammu S, Agnihotra SR, Jain S, Roberts KE, Park S, Ruoff RS, Manohar SK (2010) All-organic vapor sensor using inkjet-printed reduced graphene oxide. Angew Chem Int Ed 49:2154–2157
Eda G, Unalan HE, Rupesinghe N, Amaratunga GAJ, Chhowalla M (2008) Field emission from graphene based composite thin films. Appl Phys Lett 93:233502–1–233502–3
Dimitrakakis GK, Tylianakis E, Froudakis GE (2008) Pillared graphene: a new 3-D network nanostructure for enhanced hydrogen storage. Nano Lett 8:3166–3170
Conway BE (1999) Electrochemical supercapacitors scientific fundamentals and technological applications. Kluwer academic/Plenum Publishers, New york
Hall PJ, Mirzaeian M, Fletcher SI, Sillars FB, Rennie AJR, Shitta-Bey GO, Wilson G, Cruden A, Carter R (2010) Energy storage in electrochemical capacitors: designing functional materials to improve performance. Energy Environ Sci 3:1238–1251
Wang Y, Cheng L, Xia Y-Y (2006) Electrochemical profile of nano-particle CoAl double hydroxide/active carbon supercapacitor using KOH electrolyte solution. J Power Sources 153:191–196
Yan J, Wei T, Shao B, Ma F, Fan Z, Zhang M, Zheng C, Shang Y, Qian W, Wei F (2010) Electrochemical properties of graphene nanosheet/carbon black composites as electrodes for supercapacitors. Carbon 48:1731–1737
Frackowiak E, Beguin F (2001) Carbon materials for the electrochemical storage of energy in capacitors. Carbon 39:937–950
Du C, Pan N (2006) High power density supercapacitor electrodes of carbon nanotube films by electrophoretic deposition. Nanotechnology 17:5314–5318
Liu C, Yu Z, Neff D, Zhamu A, Jang BZ (2010) Graphene-based supercapacitor with an ultrahigh energy density. Nano Lett 10:4863–4868
Hummers W, Offeman R (1958) Preparation of graphitic oxide. J Am Chem Soc 80:1339
Stankovich S, Dikin DA, Piner RD, Kohlhaas KA, Kleinhammes A, Jia Y, Wu Y, Nguyen ST, Ruoff RS (2007) Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide. Carbon 45:1558–1565
Park S, An J, Jung I, Piner RD, An SJ, Li X, Velamakanni V, Ruoff RS (2009) Colloidal suspensions of highly reduced graphene oxide in a wide variety of organic solvents. Nano Lett 9:1593–1597
Loh KP, Bao Q, Ang PK, Yang J (2010) The chemistry of graphene. J Mater Chem 2277–2289
Dreyer DR, Park S, Bielawski CW, Ruoff RS (2010) The chemistry of graphene oxide. Chem Soc Rev 39:228–240
Fang Y, Luo B, Jia Y, Li X, Wang B, Song Q, Kang F, Zhi L (2012) Renewing functionalized graphene as electrodes for high-performance supercapacitors. Adv Mater 24:6348–6355
Su Q, Pang S, Alijani V, Li C, Feng X, Mullen K (2009) Composites of graphene with large aromatic molecules. Adv Mater 21:3191–3195
Niyogi S, Bekyarova E, Itkis ME, McWilliams JL, Hamon MA, Haddon RC (2006) Solution properties of graphite and graphene. J Am Chem Soc 128:7720–7721
Park S, Dikin DA, Nguyen ST, Ruoff RS (2009) Graphene oxide sheets chemically cross-linked by polyallylamine. J Phys Chem C 113:15801–15804
Salavagione HJ, Gómez MA, Martínez G (2009) Polymeric modification of graphene through esterification of graphite oxide and poly(vinyl alcohol). Macromolecules 42:6331–6334
Hou S, Kasner ML, Su S, Patel K, Cuellari R (2010) Highly sensitive and selective dopamine biosensor fabricated with silanized graphene. J Phys Chem C 114:14915–14921
Yang H, Li F, Shan C, Han D, Zhang Q, Lab N, Ivaska A (2009) Covalent functionalization of chemically converted graphene sheets via silane and its reinforcement. J Mater Chem 19:4632
Liu H, Liu Y, Zhu D (2011) Chemical doping of graphene. J Mater Chem 21:3335
Xu Y, Bai H, Lu G et al (2008) Flexible graphene films via the filtration of water-soluble noncovalent functionalized graphene sheets. J Am Chem Soc 130:5856–5857
Dong X, Fu D, Fang W, Li C, Shi G (2009) Doping single layer graphene with aromatic molecules. Small 5:1422–1426
Dong X, Shi Y, Zhao Y, Chen D, Ye J, Yao Y, Gao F, Ni Z, Yu T, Shen Z, Huang Y, Chen P, Li L-J (2009) Symmetry breaking of graphene monolayers by molecular decoration. Phys Rev Lett 102:135501–135504
Strobel P, Riedel M, Ristein J, Ley L (2004) Surface transfer doping of diamond. Nature 430:439–441
Hsu C-L, Lin C-T, Huang J-H, Chu C-W, Wei K-H, Li L-J (2012) Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells. ACS Nano 6:5031–5039
Liu H, Gao J, Xue M, Zhu N, Zhang M, Cao T (2009) Processing of graphene for electrochemical application: noncovalently functionalize graphene sheets with water-soluble electroactive methylene green. Langmuir 25:12006–12010
Shang NG, Papakonstantinou P, McMullan M, Chu M, Stamboulis A, Potenza A, Dhesi SS, Marchetto H (2008) Catalyst-free efficient growth, orientation and biosensing properties of multilayer graphene nanoflake films with sharp edge planes. Adv Funct Mater 18:3506–3514
Ghosh S, An X, Shah R, Rawat D, Dave B, Kar S, Talapatra S (2012) Effect of 1-pyrene carboxylic-acid functionalization of graphene on its capacitive energy storage. J Phys Chem C 116:20688–20693
An X, Simmons T, Shah R, Wolfe C, Lewis KM, Washington M, Nayak SK, Talapatra S, Kar S (2010) Stable aqueous dispersions of noncovalently functionalized graphene from graphite and their multifunctional high-performance applications. Nano Lett 10:4295–4301
Chen Z, Ren W, Gao L, Liu B, Pei S, Cheng H-M (2011) Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition. Nat Mater 10:424–428
Bello A, Makgopa K, Fabiane M, Dodoo-Ahrin D, Ozoemena KI (2013) Manyala N (2013) Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications. J Mater Sci 48:6707–6712
Ferrari A (2007) Raman spectroscopy of graphene and graphite: disorder, electron–phonon coupling, doping and nonadiabatic effects. Solid State Commun 143:47–57
Kitaura R, Imazu N, Kobayashi K, Shinohara H (2008) Fabrication of metal nanowires in carbon nanotubes via versatile nano-template reaction. Nano Lett 8:693–699
Zhou J, Song H, Ma L, Chen X (2011) Magnetite/graphene nanosheet composites: interfacial interaction and its impact on the durable high-rate performance in lithium-ion batteries. RSC Adv 1:782–791
Hu J, Ramadan A, Luo F, Qi B, Deng X, Chen J (2011) One-step molybdate ion assisted electrochemical synthesis of α-MoO3-decorated graphene sheets and its potential applications. J Mater Chem 21:15009–15014
Park S, An J, Piner RD, Jung I, Yang D, Velamakanni A, Nguyen ST, Ruoff RS (2008) Aqueous suspension and characterization of chemically modified graphene sheets. Chem Mater 20:6592–6594
Chae SJ, Gunes F, Kim KK, Kim ES, Han GH, Kim SM, Shin H-J, Yoon S-M, Choi J-Y, Park MH, Yang CW, Pribat D, Lee YH (2009) Synthesis of large-area graphene layers on poly-nickel substrate by chemical vapor deposition: wrinkle formation. Adv Mater 21:2328–2333
Bello A, Fashedemi OO, Lekitima JN, Fabiane M, Dodoo-Arhin D, Ozoemena KI, Gogotsi Y, Johnson ATC, Manyala N (2013) High-performance symmetric electrochemical capacitor based on graphene foam and nanostructured manganese oxide. AIP Adv 3:82118
Gamby J, Taberna PL, Simon P, Fauvarque JF, Chesneau M (2001) Studies and characterisations of various activated carbons used for carbon/carbon supercapacitors. J Power Sources 101:109–116
Acknowledgments
This work is based upon research supported by the South African Research Chairs Initiative of the Department of Science and Technology (SARCHi-DST) and the National Research Foundation (NRF). Any opinion, findings and conclusions or recommendations expressed in this work are those of the authors, and therefore, the NRF and DST do not accept any liability with regard thereto. A. Bello, D. Y. Momodu and M. Fabiane acknowledge the financial support from the University of Pretoria and NRF for the Ph.D. bursaries.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Bello, A., Fabiane, M., Momodu, D.Y. et al. Functionalized graphene foam as electrode for improved electrochemical storage. J Solid State Electrochem 18, 2359–2365 (2014). https://doi.org/10.1007/s10008-014-2473-4
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10008-014-2473-4