Ruthenium Nanoparticles Decorated Curl-like Porous Carbons for High Performance Supercapacitors
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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.
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Dube S, Matsinha L, Makhubela B, Ambushe A RSC Adv. 2022; 12(2):1165-1176.
PMID: 35425133 PMC: 8978976. DOI: 10.1039/d1ra06647a.
Sharma S, Kaur M, Sharma C, Choudhary A, Paul S ACS Omega. 2021; 6(30):19529-19545.
PMID: 34368539 PMC: 8340099. DOI: 10.1021/acsomega.1c01830.
Palisoc S, Dungo J, Natividad M Heliyon. 2020; 6(1):e03202.
PMID: 32021923 PMC: 6994834. DOI: 10.1016/j.heliyon.2020.e03202.
Veerakumar P, Salamalai K, Thanasekaran P, Lin K ACS Omega. 2019; 3(10):12609-12621.
PMID: 31457993 PMC: 6644444. DOI: 10.1021/acsomega.8b01680.