Synthesis of Nanosheet Crystallites of Ruthenate with an α-NaFeO2-Related Structure and Its Electrochemical Supercapacitor Property

被引：105

作者：

Fukuda, Katsutoshi ^{[1
]}

Saida, Takahiro ^{[2
]}

Sato, Jun ^{[2
]}

Yonezawa, Mihoko ^{[2
]}

Takasu, Yoshio ^{[2
]}

Sugimoto, Wataru ^{[1
,2
]}

机构：

[1] Shinshu Univ, Ctr Nanotech Fiber, Collaborat Innovat Ctr, Nagano 3868567, Japan

[2] Shinshu Univ, Fac Text Sci & Technol, Nagano 3868567, Japan

来源：

INORGANIC CHEMISTRY | 2010年 / 49卷 / 10期

基金：

日本科学技术振兴机构;

关键词：

OXIDE; INTERCALATION; DELAMINATION; EXFOLIATION; FABRICATION; MECHANISM; BEHAVIOR; SURFACE; ENERGY; FILMS;

D O I：

10.1021/ic100176d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Unilamellar crystallites of conductive ruthenium oxide having a thickness of about 1 nm were obtained via elemental exfoliation of a protonic layered ruthenate, H0.2RuO2 center dot 0.5H(2)O, with an alpha-NaFeO2-related crystal structure. The obtained RuO2 nanosheets possessed a well-defined crystalline structure with a hexagonal symmetry, reflecting the crystal structure of the parent material. The restacked RuO2 nanosheets exhibited a high pseudocapacitance of similar to 700 F g(-1) in an acidic electrolyte, which is almost double the value of the nonexfoliated layered protonated ruthenate.

引用

页码：4391 / 4393

页数：3

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