dc.contributor.authorGuan, Cao
dc.contributor.authorLiu, Jilei
dc.contributor.authorWang, Yadong
dc.contributor.authorMao, Lu
dc.contributor.authorFan, Zhanxi
dc.contributor.authorShen, Zexiang
dc.contributor.authorZhang, Hua
dc.contributor.authorWang, John
dc.identifier.citationGuan, C., Liu, J., Wang, Y., Mao, L., Fan, Z., Shen, Z., et al. (2015). Iron Oxide-Decorated Carbon for Supercapacitor Anodes with Ultrahigh Energy Density and Outstanding Cycling Stability. ACS Nano, 9(5), 5198-5207.en_US
dc.description.abstractSupercapacitor with ultrahigh energy density (e.g., comparable with those of rechargeable batteries) and long cycling ability (>50000 cycles) is attractive for the next-generation energy storage devices. The energy density of carbonaceous material electrodes can be effectively improved by combining with certain metal oxides/hydroxides, but many at the expenses of power density and long-time cycling stability. To achieve an optimized overall electrochemical performance, rationally designed electrode structures with proper control in metal oxide/carbon are highly desirable. Here we have successfully realized an ultrahigh-energy and long-life supercapacitor anode by developing a hierarchical graphite foam–carbon nanotube framework and coating the surface with a thin layer of iron oxide (GF–CNT@Fe2O3). The full cell of anode based on this structure gives rise to a high energy of ∼74.7 Wh/kg at a power of ∼1400 W/kg, and ∼95.4% of the capacitance can be retained after 50000 cycles of charge–discharge. These performance features are superior among those reported for metal oxide based supercapacitors, making it a promising candidate for the next generation of high-performance electrochemical energy storage.en_US
dc.description.sponsorshipASTAR (Agency for Sci., Tech. and Research, S’pore)en_US
dc.relation.ispartofseriesACS Nanoen_US
dc.rights© 2015 American Chemical Society.en_US
dc.subjectatomic layer depositionen_US
dc.subjectcycling stabilityen_US
dc.titleIron Oxide-Decorated Carbon for Supercapacitor Anodes with Ultrahigh Energy Density and Outstanding Cycling Stabilityen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US

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