The electrochemical properties and their relationship with the physico-chemical properties of graphene-based materials have been studied. Graphite was used as the raw material and it was oxidised and then reduced by two alternative approaches, namely thermal and multi-step reduction using ascorbic acid. It was demonstrated that the physico-chemical characteristics of the material are directly related to the synthesis method and greatly influence the major capacitance of the material. It was observed that the materials with lower levels of functional oxygen groups and with a more ordered structure, i.e. similar to graphene powder, are the ideal candidates for use in electrochemical applications as these materials have better capacitance and specific capacitances.
ShiW, ZhuJ, SimDH, Achieving high specific charge capacitances in Fe3O4/reduced graphene oxide nanocomposites.J Mater Chem. 2011;21(10):3422–3427. doi: 10.1039/c0jm03175e
7.
KeYF, TsaiDS, HuangYS.Electrochemical capacitors of RuO2 nanophase grown on LiNbO3(100) and sapphire(0001) substrates. J Matter Chem. 2005;15(21):2122–2127. doi: 10.1039/b502754c
8.
ZhangLL, ZhouR, ZhaoX.Graphene-based materials as supercapacitor electrodes. J Mater Chem. 2010;20(29):5983–5992. doi: 10.1039/c000417k
9.
AmbrosiA, ChuaCK, BonanniA, Electrochemistry of graphene and related materials. Chem Rev. 2014;114(14):7150–7188. doi: 10.1021/cr500023c
10.
Kozlica DžKF, GutićS.Graphite, graphite oxide, graphene oxide, and reduced graphene oxide as active materials for electrochemical double layer capacitors: a comparative study. Glas Hem Tehnol Bosne Herces. 2015;45:35–38.
11.
PandolfoAG, HollenkampAF.Carbon properties and their role in supercapacitors. J Power Sources. 2006;157(1):11–27. doi: 10.1016/j.jpowsour.2006.02.065
12.
SimonP, GogotsiY.Materials for electrochemical capacitors. Nat Mater. 2008;7:845–854. doi: 10.1038/nmat2297
13.
GeimAK, NovoselovKS.The rise of graphene. Nat Mater. 2007;6(3):183–191. doi: 10.1038/nmat1849
14.
ChaeHK, Siberio-PérezDY, KimJ, A route to high surface area, porosity and inclusion of large molecules in crystals. Nature. 2004;427:523–527. doi: 10.1038/nature02311
15.
Lavin-LopezMP, RomeroA, GarridoJ, Influence of different improved Hummers method modifications on the characteristics of graphite oxide in order to make a more easily scalable method. Ind Eng Chem Res. 2016;55(50):12836–12847. doi: 10.1021/acs.iecr.6b03533
16.
Lavin-LopezMP, Paton-CarreroA, Sanchez-SilvaL, Influence of the reduction strategy in the synthesis of reduced graphene oxide. Adv Powder Technol. 2017;28(12):3195–3203. doi: 10.1016/j.apt.2017.09.032
17.
StobinskiL, LesiakB, MalolepszyA, Graphene oxide and reduced graphene oxide studied by the XRD, TEM and electron spectroscopy methods. J Electron Spectrosc Relat Phenom. 2014;195:145–154. doi: 10.1016/j.elspec.2014.07.003
18.
WarrenB.X-ray diffraction in random layer lattices. Phys Rev. 1941;59(9):693–698. doi: 10.1103/PhysRev.59.693
19.
Lucas-ConsuegraA, De la OsaA, CalcerradaA, A novel sputtered Pd mesh architecture as an advanced electrocatalyst for highly efficient hydrogen production. J Power Sources. 2016;321:248–256. doi: 10.1016/j.jpowsour.2016.05.004
20.
PeiS, ChengHM.The reduction of graphene oxide. Carbon. 2012;50(9):3210–3228. doi: 10.1016/j.carbon.2011.11.010
21.
SunT, FabrisS, BaroniS.Surface precursors and reaction mechanisms for the thermal reduction of graphene basal surfaces oxidized by atomic oxygen. J Phys Chem C. 2011;115(11):4730–4737. doi: 10.1021/jp111372k
22.
Fernández-MerinoMJ, GuardiaL, ParedesJ, Vitamin C is an ideal substitute for hydrazine in the reduction of graphene oxide suspensions. J Phys Chem C. 2010;114(14):6426–6432. doi: 10.1021/jp100603h
23.
MoZ, SunY, ChenH, Preparation and characterization of a PMMA/Ce(OH)3, Pr2O3/graphite nanosheet composite. Polymer. 2005;46(26):12670–12676. doi: 10.1016/j.polymer.2005.10.117
24.
CrumptonD, LaitinenR, SmiejaJ, Thermal analysis of carbon allotropes: An experiment for advanced undergraduates. J Chem Educ. 1996;73(6):590–591. doi: 10.1021/ed073p590
25.
EckmannA, FeltenA, MishchenkoA, Probing the nature of defects in graphene by Raman spectroscopy. Nano Lett. 2012;12(8):3925–3930. doi: 10.1021/nl300901a
26.
TegouE, PseiropoulosG, FilippidouM, Low-temperature thermal reduction of graphene oxide films in ambient atmosphere: infra-red spectroscopic studies and gas sensing applications. Microelectron Eng. 2016;159:146–150. doi: 10.1016/j.mee.2016.03.030
27.
ChuaCK, PumeraM.Chemical reduction of graphene oxide: a synthetic chemistry viewpoint. Chem Soc Rev. 2014;43(1):291–312. doi: 10.1039/C3CS60303B
28.
ConwayBE.Electrochemical Supercapacitors: Scientific fundamentals and technological applications. New York: Springer Science&Business Media; 1997.
Esteban-ArranzA, Compte-TordesillasD, Muñoz-AndrésV, Effect of surface, structural and textural properties of graphenic materials over cooperative and synergetic adsorptions of two chloroaromatic compounds from aqueous solution. Catal Today. 2018;301:104–111. doi: 10.1016/j.cattod.2017.03.048
