title: Ruthenium nanoparticles decorated curl-like porous carbons for high performance supercapacitors.
abstract: The synthesis of highly dispersed and stable ruthenium nanoparticles (RuNPs; ca. 2-3 nm) on porous activated carbons derived from Moringa Oleifera fruit shells (MOC) is reported and were exploited for supercapacitor applications. The Ru/MOC composites so fabricated using the biowaste carbon source and ruthenium acetylacetonate as the co-feeding metal precursors were activated at elevated temperatures (600-900 (o)C) in the presence of ZnCl2 as the pore generating and chemical activating agent. The as-prepared MOC carbonized at 900 (o)C was found to possess a high specific surface area (2522 m(2) g(-1)) and co-existing micro- and mesoporosities. Upon incorporating RuNPs, the Ru/MOC nanocomposites loaded with modest amount of metallic Ru (1.0-1.5 wt%) exhibit remarkable electrochemical and capacitive properties, achiving a maximum capacitance of 291 F g(-1) at a current density of 1 A g(-1) in 1.0 M H2SO4 electrolyte. These highly stable and durable Ru/MOC electrodes, which can be facily fabricated by the eco-friendly and cost-effective route, should have great potentials for practical applications in energy storage, biosensing, and catalysis.
authors.affiliation: Chemistry Division, Center for General Education, Chang Gung University, Taoyuan 33302, Taiwan.
authors.forename: Bih-Show
authors.initials: BS
authors.lastname: Lou
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
authors.forename: Pitchaimani
authors.initials: P
authors.lastname: Veerakumar
authors.affiliation: Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Shen-Ming
authors.initials: SM
authors.lastname: Chen
authors.affiliation: Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Vediyappan
authors.initials: V
authors.lastname: Veeramani
authors.affiliation: Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Madhu
authors.affiliation: Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.|Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan.
authors.forename: Shang-Bin
authors.initials: SB
authors.lastname: Liu
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