title: Synthesis of nanosheet crystallites of ruthenate with an alpha-NaFeO2-related structure and its electrochemical supercapacitor property.
abstract: Unilamellar crystallites of conductive ruthenium oxide having a thickness of about 1 nm were obtained via elemental exfoliation of a protonic layered ruthenate, H(0.2)RuO(2).0.5H(2)O, with an alpha-NaFeO(2)-related crystal structure. The obtained RuO(2) nanosheets possessed a well-defined crystalline structure with a hexagonal symmetry, reflecting the crystal structure of the parent material. The restacked RuO(2) nanosheets exhibited a high pseudocapacitance of approximately 700 F g(-1) in an acidic electrolyte, which is almost double the value of the nonexfoliated layered protonated ruthenate.
authors.affiliation: Collaborative Innovation Center for Nanotech Fiber, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Fukuda
authors.forename: Takahiro
authors.initials: T
authors.lastname: Saida
authors.forename: Jun
authors.initials: J
authors.lastname: Sato
authors.forename: Mihoko
authors.initials: M
authors.lastname: Yonezawa
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Takasu
authors.forename: Wataru
authors.initials: W
authors.lastname: Sugimoto