Xia, J., Chen, F., Li, J. & Tao, N. Measurement of the quantum capacitance of graphene. Nat. Nanotechnol. 4, 505–509 (2009). This study established a method for the direct measurement of the quantum capacitance of graphene that tells us about the maximum (theoretical) specific capacitance graphene can achieve.
Wang, G. et al. Sn/graphene nanocomposite with 3D architecture for enhanced reversible lithium storage in lithium ion batteries. J. Mater. Chem. 19, 8378–8384 (2009).
Kim, H., Park, K. Y., Hong, J. & Kang, K. All-graphene-battery: bridging the gap between supercapacitors and lithium ion batteries. Sci. Rep. 4, 5278 (2014).
Ferrari, A. C. et al. Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems. Nanoscale 7, 4598–4810 (2015). A comprehensive review describing the physics and chemistry of graphene, and outlining the most promising results and applications achieved so far.
Luo, J., Jang, H. D. & Huang, J. Effect of sheet morphology on the scalability of graphene-based ultracapacitors. ACS Nano 7, 1464–1471 (2013).
Chua, C. K. et al. Synthesis of strongly fluorescent graphene quantum dots by cage-opening buckminsterfullerene. ACS Nano 9, 2548–2555 (2015).
Hassan, M. et al. Edge-enriched graphene quantum dots for enhanced photo-luminescence and supercapacitance. Nanoscale 6, 11988–11994 (2014).
Liu, W. W., Feng, Y. Q., Yan, X. B., Chen, J. T. & Xue, Q. J. Superior micro-supercapacitors based on graphene quantum dots. Adv. Funct. Mater. 23, 4111–4122 (2013).
Yeh, T. F., Teng, C. Y., Chen, S. J. & Teng, H. Nitrogen-doped graphene oxide quantum dots as photocatalysts for overall water-splitting under visible light illumination. Adv. Mater. 26, 3297–3303 (2014).
Cheng, H., Hu, C., Zhao, Y. & Qu, L. Graphene fiber: a new material platform for unique applications. NPG Asia Mater. 6, e113 (2014).
Kou, L. et al. Coaxial wet-spun yarn supercapacitors for high-energy density and safe wearable electronics. Nat. Commun. 5, 3754 (2014).
Yu, D. et al. Scalable synthesis of hierarchically structured carbon nanotube–graphene fibres for capacitive energy storage. Nat. Nanotechnol. 9, 555–562 (2014).
Ahn, Y., Jeong, Y., Lee, D. & Lee, Y. Copper nanowire–graphene core–shell nanostructure for highly stable transparent conducting electrodes. ACS Nano 9, 3125–3133 (2015).
Zhou, M. et al. Highly conductive porous graphene/ceramic composites for heat transfer and thermal energy storage. Adv. Funct. Mater. 23, 2263–2269 (2013).
Bi, H. et al. Spongy graphene as a highly efficient and recyclable sorbent for oils and organic solvents. Adv. Funct. Mater. 22, 4421–4425 (2012).
Jakus, A. E. et al. Three-dimensional printing of high-content graphene scaffolds for electronic and biomedical applications. ACS Nano 9, 4636–4648 (2015). This work demonstrates the printing of 3D architectures with high graphene content, enabling the production of electrodes with high electrical conductivity. This could be applied in the design and fabrication of a wide range of functional electronic, biological and bioelectronic medical, and non-medical devices.
Yan, Z. et al. Progress in the preparation and application of three-dimensional graphene-based porous nanocomposites. Nanoscale 7, 5563–5577 (2015).
Tibbits, S. 4D printing: multi-material shape change. Archit. Design 84, 116–121 (2014).
Li, D., Mueller, M. B., Gilje, S., Kaner, R. B. & Wallace, G. G. Processable aqueous dispersions of graphene nanosheets. Nat. Nanotechnol. 3, 101–105 (2008).
Li, Z., Liu, Z., Sun, H. & Gao, C. Superstructured assembly of nanocarbons: fullerenes, nanotubes, and graphene. Chem. Rev. 115, 7046–7117 (2015).
Shao, Y., Wang, H., Zhang, Q. & Li, Y. Fabrication of large-area and high-crystallinity photoreduced graphene oxide films via reconstructed two-dimensional multilayer structures. NPG Asia Mater. 6, e119 (2014).
Zhou, M. et al. High-performance silicon battery anodes enabled by engineering graphene assemblies. Nano Lett. 15, 6222–6228 (2015).
Hwang, J. Y. et al. Direct preparation and processing of graphene/RuO2 nanocomposite electrodes for high-performance capacitive energy storage. Nano Energy 18, 57–70 (2015).
Wang, J. et al. Rod-coating: towards large-area fabrication of uniform reduced graphene oxide films for flexible touch screens. Adv. Mater. 24, 2874–2878 (2012).
Hu, L., Wu, H. & Cui, Y. Printed energy storage devices by integration of electrodes and separators into single sheets of paper. Appl. Phys. Lett. 96, 183502 (2010).
Choi, J. H. et al. Multi-layer electrode with nano-Li4Ti5O12 aggregates sandwiched between carbon nanotube and graphene networks for high power Li-ion batteries. Sci. Rep. 4, 7334 (2014).
Zhang, Y. et al. A graphene-oxide-based thin coating on the separator: an efficient barrier towards high-stable lithium–sulfur batteries. 2D Mater. 2, 024013 (2015).
Kim, D. Y. et al. Self-healing reduced graphene oxide films by supersonic kinetic spraying. Adv. Funct. Mater. 24, 4986–4995 (2014).
Xin, G. et al. Large-area freestanding graphene paper for superior thermal management. Adv. Mater. 26, 4521–4526 (2014).
Roberts, M. et al. 3D lithium ion batteries — from fundamentals to fabrication. J. Mater. Chem. 21, 9876–9890 (2011).
Le, L. T., Ervin, M. H., Qiu, H., Fuchs, B. E. & Lee, W. Y. Graphene supercapacitor electrodes fabricated by inkjet printing and thermal reduction of graphene oxide. Electrochem. Commun. 13, 355–358 (2011).
Xu, Y. et al. Screen-printable thin film supercapacitor device utilizing graphene/polyaniline inks. Adv. Energy Mater. 3, 1035–1040 (2013).
Secor, E. B. et al. Gravure printing of graphene for large-area flexible electronics. Adv. Mater. 26, 4533–4538 (2014).
Nathan, M. et al. Three-dimensional thin-film Li-ion microbatteries for autonomous MEMS. J. Microelectromech. Syst. 14, 879–885 (2005).
Miller, J. R., Outlaw, R. A. & Holloway, B. C. Graphene double-layer capacitor with AC line-filtering performance. Science 329, 1637–1639 (2010). The first study on using graphene EDL capacitors for AC (120 Hz) line-filtering using vertically oriented graphene sheets grown directly on a nickel substrate.
Sheng, K., Sun, Y., Li, C., Yuan, W. & Shi, G. Ultrahigh-rate supercapacitors based on eletrochemically reduced graphene oxide for AC line-filtering. Sci. Rep. 2, 247 (2012).
Lin, J. et al. 3-dimensional graphene carbon nanotube carpet-based microsupercapacitors with high electrochemical performance. Nano Lett. 13, 72–78 (2012).
Wu, Z. S., Liu, Z., Parvez, K., Feng, X. & Müllen, K. Ultrathin printable graphene supercapacitors with AC line-filtering performance. Adv. Mater. 27, 3669–3675 (2015).
Kurra, N., Hota, M. K. & Alshareef, H. N. Conducting polymer micro-supercapacitors for flexible energy storage and AC line-filtering. Nano Energy 13, 500–508 (2015).
Nathan, A. et al. Flexible electronics: the next ubiquitous platform. Proc. IEEE 100, 1486–1517 (2012).
Sheats, J. R. Manufacturing and commercialization issues in organic electronics. J. Mater. Res. 19, 1974–1989 (2004).
Wang, X. & Shi, G. Flexible graphene devices related to energy conversion and storage. Energy Environ. Sci. 8, 790–823 (2015).
Shao, Y. et al. Graphene-based materials for flexible supercapacitors. Chem. Soc. Rev. 44, 3639–3665 (2015).
Rogers, J. A., Someya, T. & Huang, Y. Materials and mechanics for stretchable electronics. Science 327, 1603–1607 (2010).
Chen, T., Xue, Y., Roy, A. K. & Dai, L. Transparent and stretchable high-performance supercapacitors based on wrinkled graphene electrodes. ACS Nano 8, 1039–1046 (2013).
Jost, K., Dion, G. & Gogotsi, Y. Textile energy storage in perspective. J. Mater. Chem. A 2, 10776–10787 (2014).
Yu, G. et al. Solution-processed graphene/MnO2 nanostructured textiles for high-performance electrochemical capacitors. Nano Lett. 11, 2905–2911 (2011).
Meng, Y. et al. All-graphene core–sheath microfibers for all-solid-state, stretchable fibriform supercapacitors and wearable electronic textiles. Adv. Mater. 25, 2326–2331 (2013).
Facchetti, A. & Marks, T. J. Transparent Electronics: From Synthesis to Applications (Wiley, 2010).
Yang, Y. et al. Transparent lithium-ion batteries. Proc. Natl Acad. Sci. USA 108, 13013–13018 (2011).
Li, N., Chen, Z., Ren, W., Li, F. & Cheng, H. M. Flexible graphene-based lithium ion batteries with ultrafast charge and discharge rates. Proc. Natl Acad. Sci. USA 109, 17360–17365 (2012).
Lin, M. C. et al. An ultrafast rechargeable aluminium-ion battery. Nature 520, 324–328 (2015).
Ye, M. et al. Uniquely arranged graphene-on-graphene structure as a binder-free anode for high-performance lithium-ion batteries. Small 10, 5035–5041 (2014).
Gwon, H. et al. Flexible energy storage devices based on graphene paper. Energy Environ. Sci. 4, 1277–1283 (2011).
El-Kady, M. F., Strong, V., Dubin, S. & Kaner, R. B. Laser scribing of high-performance and flexible graphene-based electrochemical capacitors. Science 335, 1326–1330 (2012).
Gao, W. et al. Direct laser writing of micro-supercapacitors on hydrated graphite oxide films. Nat. Nanotechnol. 6, 496–500 (2011).
Karim, M. R. et al. Graphene oxide nanosheet with high proton conductivity. J. Am. Chem. Soc. 135, 8097–8100 (2013).
Hatakeyama, K. et al. Proton conductivities of graphene oxide nanosheets: single, multilayer, and modified nanosheets. Angew. Chem. Int. Ed. Engl. 53, 6997–7000 (2014).
Zhang, Q. et al. Anomalous capacitive behaviors of graphene oxide based solid-state supercapacitors. Nano Lett. 14, 1938–1943 (2014).
Yang, X., Cheng, C., Wang, Y., Qiu, L. & Li, D. Liquid-mediated dense integration of graphene materials for compact capacitive energy storage. Science 341, 534–537 (2013).
Xu, Y. et al. Holey graphene frameworks for highly efficient capacitive energy storage. Nat. Commun. 5, 4554 (2014).
El-Kady, M. F. et al. Engineering three-dimensional hybrid supercapacitors and microsupercapacitors for high-performance integrated energy storage. Proc. Natl Acad. Sci. USA 112, 4233–4238 (2015).
Lee, H., Yanilmaz, M., Toprakci, O., Fu, K. & Zhang, X. A review of recent developments in membrane separators for rechargeable lithium-ion batteries. Energy Environ. Sci. 7, 3857–3886 (2014).
Huang, J. Q. et al. Permselective graphene oxide membrane for highly stable and anti-self-discharge lithium–sulfur batteries. ACS Nano 9, 3002–3011 (2015).
Nair, R. R., Wu, H. A., Jayaram, P. N., Grigorieva, I. V. & Geim, A. K. Unimpeded permeation of water through helium-leak–tight graphene-based membranes. Science 335, 442–444 (2012).
Joshi, R. K. et al. Precise and ultrafast molecular sieving through graphene oxide membranes. Science 343, 752–754 (2014).
Gao, W. et al. Ozonated graphene oxide film as a proton-exchange membrane. Angew. Chem. Int. Ed. Engl. 53, 3588–3593 (2014).
Liu, F., Song, S., Xue, D. & Zhang, H. Folded structured graphene paper for high performance electrode materials. Adv. Mater. 24, 1089–1094(2012).
Mukherjee, R., Thomas, A. V., Krishnamurthy, A. & Koratkar, N. Photothermally reduced graphene as high-power anodes for lithium-ion batteries. ACS Nano 6, 7867–7878 (2012).
Xu, Y. et al. Solvated graphene frameworks as high-performance anodes for lithium-ion batteries. Angew. Chem. Int. Ed. Engl. 127, 5435–5440 (2015).
Wu, Z. S., Ren, W., Xu, L., Li, F. & Cheng, H. M. Doped graphene sheets as anode materials with superhigh rate and large capacity for lithium ion batteries. ACS Nano 5, 5463–5471 (2011).
Zhou, W. et al. A general strategy toward graphene metal oxide core–shell nanostructures for high-performance lithium storage. Energy Environ. Sci. 4, 4954–4961 (2011).
Hu, L. H., Wu, F. Y., Lin, C. T., Khlobystov, A. N. & Li, L. J. Graphene-modified LiFePO4 cathode for lithium ion battery beyond theoretical capacity. Nat. Commun. 4, 1687 (2013).
Chou, S. L., Pan, Y., Wang, J. Z., Liu, H. K. & Dou, S. X. Small things make a big difference: binder effects on the performance of Li and Na batteries. Phys. Chem. Chem. Phys. 16, 20347–20359 (2014).
He, S. & Chen, W. 3D graphene nanomaterials for binder-free supercapacitors: scientific design for enhanced performance. Nanoscale 7, 6957–6990 (2015).
Neto, A. H. & Novoselov, K. Two-dimensional crystals: beyond graphene. Mater. Express 1, 10–17 (2011).
Butler, S. Z. et al. Progress, challenges, and opportunities in two-dimensional materials beyond graphene. ACS Nano 7, 2898–2926 (2013).
Gupta, A., Sakthivel, T. & Seal, S. Recent development in 2D materials beyond graphene. Prog. Mater. Sci. 73, 44–126 (2015).
Chhowalla, M. et al. The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets. Nat. Chem. 5, 263–275 (2013).
Acerce, M., Voiry, D. & Chhowalla, M. Metallic 1T phase MoS2 nanosheets as supercapacitor electrode materials. Nat. Nanotechnol. 10, 313–318 (2015). The metallic 1T phase of MoS2 has the ability to intercalate various cations, which makes it promising for electrochemical energy storage in both aqueous and organic media.
da Silveira Firmiano, E. G. et al. Supercapacitor electrodes obtained by directly bonding 2D MoS2 on reduced graphene oxide. Adv. Energy Mater. 4, 1301380 (2014).
Chang, K. & Chen, W. L-cysteine-assisted synthesis of layered MoS2/graphene composites with excellent electrochemical performances for lithium ion batteries. ACS Nano 5, 4720–4728 (2011).
Naguib, M. & Gogotsi, Y. Synthesis of two-dimensional materials by selective extraction. Acc. Chem. Res. 48, 128–135 (2014).
Ghidiu, M., Lukatskaya, M. R., Zhao, M. Q., Gogotsi, Y. & Barsoum, M. W. Conductive two-dimensional titanium carbide ‘clay’ with high volumetric capacitance. Nature 516, 78–81 (2014).
Mashtalir, O. et al. Intercalation and delamination of layered carbides and carbonitrides. Nat. Commun. 4, 1716 (2013).
Ghaffarzadeh, K. Graphene and 2D Materials: Markets, Technologies and Opportunities 2015–2025 (IDTechEx, 2015).
Weinstein, L. & Dash, R. Supercapacitor carbons. Mater. Today 10, 356–357 (2013).
Wolf, E. L. in Applications of Graphene 19–38 (Springer, 2014).
Chen, Q. et al. Enhanced hot-carrier luminescence in multilayer reduced graphene oxide nanospheres. Sci. Rep. 3, 2315 (2013).
Raccichini, R., Varzi, A., Passerini, S. & Scrosati, B. The role of graphene for electrochemical energy storage. Nat. Mater. 14, 271–279 (2015).
Wei, W. et al. The effect of graphene wrapping on the performance of LiFePO4 for a lithium ion battery. Carbon 57, 530–533 (2013).
Wu, Z. S. et al. Graphene/metal oxide composite electrode materials for energy storage. Nano Energy 1, 107–131 (2012).
Park, S. H. et al. Spray-assisted deep-frying process for the in situ spherical assembly of graphene for energy-storage devices. Chem. Mater. 27, 457–465 (2015).
Cai, J. et al. Atomically precise bottom-up fabrication of graphene nanoribbons. Nature 466, 470–473 (2010).
Jiao, L., Zhang, L., Wang, X., Diankov, G. & Dai, H. Narrow graphene nanoribbons from carbon nanotubes. Nature 458, 877–880 (2009).
Cong, H. P., Ren, X. C., Wang, P. & Yu, S. H. Wet-spinning assembly of continuous, neat, and macroscopic graphene fibers. Sci. Rep. 2, 613 (2012).
Hu, C. et al. Graphene microtubings: controlled fabrication and site-specific functionalization. Nano Lett. 12, 5879–5884 (2012).
Stankovich, S. et al. Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide. Carbon 45, 1558–1565 (2007).
Liu, C., Yu, Z., Neff, D., Zhamu, A. & Jang, B. Z. Graphene-based supercapacitor with an ultrahigh energy density. Nano Lett. 10, 4863–4868 (2010).
Zhu, Y., et al. Carbon-based supercapacitors produced by activation of graphene. Science 332, 1537–1541 (2011). This study describes a novel strategy for boosting the energy density of graphene supercapacitors via chemical activation of exfoliated graphite oxide. This leads to porous carbons with surface areas in excess of 3,000 m2 g−1 featured with improved specific capacitance and reduced resistance.
Bai, J., Zhong, X., Jiang, S., Huang, Y. & Duan, X. Graphene nanomesh. Nat. Nanotechnol. 5, 190–194 (2010).
Dong, Z. et al. Facile fabrication of light, flexible and multifunctional graphene fibers. Adv. Mater. 24, 1856–1861 (2012).
Li, X. et al. Multifunctional graphene woven fabrics. Sci. Rep. 2, 395 (2012).
Yan, Z. et al. Hexagonal graphene onion rings. J. Am. Chem. Soc. 135, 10755–10762 (2013).
Choi, B. G., Yang, M., Hong, W. H., Choi, J. W. & Huh, Y. S. 3D macroporous graphene frameworks for supercapacitors with high energy and power densities. ACS Nano 6, 4020–4028 (2012).
Chen, Z. et al. Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition. Nat. Mater. 10, 424–428 (2011).
Xu, Y., Sheng, K., Li, C. & Shi, G. Self-assembled graphene hydrogel via a one-step hydrothermal process. ACS Nano 4, 4324–4330 (2010).
Korkut, S., Roy-Mayhew, J. D., Dabbs, D. M., Milius, D. L. & Aksay, I. A. High surface area tapes produced with functionalized graphene. ACS Nano 5, 5214–5222 (2011).
Sun, H., Xu, Z. & Gao, C. Multifunctional, ultra-flyweight, synergistically assembled carbon aerogels. Adv. Mater. 25, 2554–2560 (2013).
Bai, H., Li, C., Wang, X. & Shi, G. On the gelation of graphene oxide. J. Phys. Chem. C 115, 5545–5551 (2011).
Burress, J. W. et al. Graphene oxide framework materials: theoretical predictions and experimental results. Angew. Chem. Int. Ed. Engl. 49, 8902–8904 (2010).
Jahan, M., Bao, Q. & Loh, K. P. Electrocatalytically active graphene–porphyrin MOF composite for oxygen reduction reaction. J. Am. Chem. Soc. 134, 6707–6713 (2012).
Zhao, Y. et al. A versatile, ultralight, nitrogen-doped graphene framework. Angew. Chem. Int. Ed. Engl. 124, 11533–11537 (2012).
Gilje, S., Han, S., Wang, M., Wang, K. L. & Kaner, R. B. A chemical route to graphene for device applications. Nano Lett. 7, 3394–3398 (2007).
Tung, V. C., Allen, M. J., Yang, Y. & Kaner, R. B. High-throughput solution processing of large-scale graphene. Nat. Nanotechnol. 4, 25–29 (2009).
Licari, J. J. Coating Materials for Electronic Applications: Polymers, Processing, Reliability, Testing (William Andrew Publishing, 2003).
Lee, J. W. et al. Extremely stable cycling of ultra-thin V2O5 nanowire–graphene electrodes for lithium rechargeable battery cathodes. Energy Environ. Sci. 5, 9889–9894 (2012).
Zhang, X. et al. Electrospun TiO2–graphene composite nanofibers as a highly durable insertion anode for lithium ion batteries. J. Phys. Chem. C 116, 14780–14788 (2012).
Liang, Y., Wu, D., Feng, X. & Müllen, K. Dispersion of graphene sheets in organic solvent supported by ionic interactions. Adv. Mater. 21, 1679–1683 (2009).
D'Arcy, J. M., Tran, H. D., Stieg, A. Z., Gimzewski, J. K. & Kaner, R. B. Aligned carbon nanotube, graphene and graphite oxide thin films via substrate-directed rapid interfacial deposition. Nanoscale 4, 3075–3082 (2012).
Li, X. et al. Highly conducting graphene sheets and Langmuir–Blodgett films. Nat. Nanotechnol. 3, 538–542 (2008).
Yu, D. & Dai, L. Self-assembled graphene/carbon nanotube hybrid films for supercapacitors. J. Phys. Chem. Lett. 1, 467–470 (2009).