期刊
NANOSCALE
卷 5, 期 15, 页码 6804-6811出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr01233f
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- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Knowledge Economy, Korean government [20122010100140]
An in situ chemical synthesis approach has been developed to prepare ruthenium oxide/reduced graphene oxide (RGO) nanocomposites. It is found that as the C/O ratio increases, the number density of RuO2 nanoparticles decreases, because the chemical interaction between the Ru ions and the oxygen-containing functional groups provides anchoring sites where the nucleation of particles takes place. For electrochemical capacitor applications, the microwave-hydrothermal process was carried out to improve the conductivity of RGO in RuO2/RGO nanocomposites. The significant improvement in capacitance and high rate capability might result from the RuO2 nanoparticles used as spacers that make the interior layers of the reduced graphene oxide electrode available for electrolyte access.
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