Inkjet printing, as a flexible high-precision functional material deposition method, has been widely used in the preparation of supercapacitors. However, the inkjet printed electrode is usually a planar structure, which greatly reduces the applying performance of the prepared supercapacitor. In this research, the graphene oxide was composited with AgNO3 and dispersed ultrasonically in an aqueous solution to obtain an inkjet printing ink. By controlling the substrate temperature and the printing interval, layer-by-layer inkjet printing was performed on the substrate, and then three-dimensional electrode structures were prepared by vapor phase hydrazine reduction. Experiments show that when the substrate temperature is 55 °C and the printing interval is 60 s, a uniform three-dimensional electrode is printed. The conductivity of the three-dimensional electrode is measured as 2.9 × 105 S/m, and the specific capacitance is 89.6 F/g, the areal capacitance is 36 mF/cm2. The prepared three-dimensional electrode in this research can be applied to supercapacitors, which will have great significance for improving the applying performance of supercapacitors.
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This work is financially supported by the Government of Shandong Province (No. 2017GGX80105), which is gratefully acknowledged.
Xu, J., Zhang, R., Wu, C., et al. (2014). Electrochemical performance of graphitized carbide-derived-carbon with hierarchical micro- and meso-pores in alkaline electrolyte. Carbon,74(10), 226–236.CrossRefGoogle Scholar
Li, Y., Li, Z., & Shen, P. K. (2013). Simultaneous formation of ultrahigh surface area and three-dimensional hierarchical porous graphene-like networks for fast and highly stable supercapacitors. Advanced Materials,25(17), 2474–2480.CrossRefGoogle Scholar
Choi, K. H., Yoo, J. T., Chang, K. L., et al. (2016). All-inkjet-printed, solid-state flexible supercapacitors on paper. Energy & Environmental Science,9(9), 1–9.CrossRefGoogle Scholar
Wu, Z. S., Parvez, K., Feng, X., et al. (2014). Photolithographic fabrication of high-performance all-solid-state graphene-based planar micro-supercapacitors with different interdigital fingers. Journal of Materials Chemistry A,2(22), 8288–8293.CrossRefGoogle Scholar
Grote, F., Yu, Z. Y., Wang, J. L., et al. (2015). Self-stacked reduced graphene oxide nanosheets coated with cobalt-nickel hydroxide by one-step electrochemical deposition toward flexible electrochromic supercapacitors. Small (Weinheim an der Bergstrasse, Germany),11(36), 4666–4672.CrossRefGoogle Scholar
Khamlich, S., Khamliche, T., Dhlamini, M. S., et al. (2017). Rapid microwave-assisted growth of silver nanoparticles on 3D graphene networks for supercapacitor application. Journal of Colloid and Interface Science,493, 130–137.CrossRefGoogle Scholar
Tajabadi, M. T., Basirun, W. J., Lorestani, F., et al. (2015). Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide. Electrochimica Acta,151, 126–133.CrossRefGoogle Scholar
Tien, H. W., Hsiao, S. T., Liao, W. H., et al. (2013). Using self-assembly to prepare a graphene-silver nanowire hybrid film that is transparent and electrically conductive. Carbon,58(3), 198–207.CrossRefGoogle Scholar
Davies, A., Audette, P., Farrow, B., et al. (2011). Graphene-based flexible supercapacitors: Pulse-electropolymerization of polypyrrole on free-standing graphene films. Journal of Physical Chemistry C,115(35), 17612–17620.CrossRefGoogle Scholar
Liu, J., Jiang, T., Duan, F., et al. (2018). Electrophoresis deposition of flexible and transparent silver nanowire/graphene composite film and its electrochemical properties. Journal of Alloys and Compounds,745(2018), 370–377.CrossRefGoogle Scholar