Compact and Light Supercapacitor Electrodes from a Surface-Only Solid by Opened Carbon Nanotubes with 2 200 m2 g-1 Surface Area

被引：140

作者：

Hiraoka, Tatsuki ^{[1
]}

Izadi-Najafabadi, Ali ^{[1
,4
]}

Yamada, Takeo ^{[1
]}

Futaba, Don N. ^{[1
]}

Yasuda, Satoshi ^{[1
]}

Tanaike, Osamu ^{[2
]}

Hatori, Hiroaki ^{[2
]}

Yumura, Motoo ^{[1
]}

Iijima, Sumio ^{[1
,4
]}

Hata, Kenji ^{[1
,3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanotube Res Ctr, Tsukuba, Ibaraki 3058565, Japan

[2] Natl Inst Adv Ind Sci & Technol, AIST Tsukuba W, Energy Technol Res Inst, Tsukuba, Ibaraki 3058569, Japan

[3] Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan

[4] Meijo Univ, Nagoya, Aichi 4688502, Japan

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 03期

关键词：

HIGHLY EFFICIENT SYNTHESIS; DOUBLE-LAYER CAPACITORS; ION BATTERIES; ADSORPTION; PERFORMANCE;

D O I：

10.1002/adfm.200901927

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An approach is presented to make a "surface-only solid" with a surface area of 2 240 m(2) g(-1) (1310 m(2) cm(-3)), corresponding to 85% of the atoms constituting a surface, by opening single-walled carbon nanotube forests and solids via controlled oxidation. The controllability of the approach is demonstrated by tailoring the hole size to match the guest molecule, for example, nitrogen, fullerene, or sofvated ions. These features make the surface-only solid an ideal vessel for material and energy storage, as demonstrated by its use for electrodes to realize a light and compact supercapacitor with high energy (24.7 W h kg(-1)) and power (98.9 kW kg(-1)) densities, exceeding those of activated carbon (16.9 W h kg(-1) and 35.7 kW kg(-1)).

引用

页码：422 / 428

页数：7

共 39 条

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