Effect of annealing temperature on electrochemical characteristics of ruthenium oxide/multi-walled carbon nanotube composites

作者: Min-Kang Seo , Abdelghani Saouab , Soo-Jin Park

DOI: 10.1016/J.MSEB.2010.01.028

关键词: Materials scienceAnnealing (metallurgy)SupercapacitorRuthenium oxideComposite numberComposite materialCarbon nanotubePseudocapacitanceElectrochemistryNanoparticle

摘要: Abstract The preparation and characterization of high-surface-area ruthenium oxide (RuO 2 )/multi-walled carbon nanotubes (MWCNTs) composite electrodes for use in supercapacitors is reported this work. RuO /MWCNTs composites were prepared by the polyol process into MWCNTs Ru annealing air before mixed with MWCNTs. chemically oxidized annealed nanoparticles contribute a pseudocapacitance to dramatically improve energy storage characteristics These at 200 °C demonstrate specific capacitances excess 130 F/g comparison 80 F/g pristine temperature found play an important role, as it affects electrochemical performance critically due its influence on diffusion protons structure.

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