Perovskite SrCo0.9Nb0.1O3-δ as an Anion-Intercalated Electrode Material for Supercapacitors with Ultrahigh Volumetric Energy Density

被引：137

作者：

Zhu, Liang ^{[1
]}

Liu, Yu ^{[2
]}

Su, Chao ^{[2
]}

Zhou, Wei ^{[1
]}

Liu, Meilin ^{[3
]}

Shao, Zongping ^{[2
,4
]}

机构：

[1] Nanjing Tech Univ, Coll Chem & Chem Engn, State Key Lab Mat Oriented Chem Engn, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 5 Xin Mofan Rd, Nanjing 210009, Peoples R China

[2] Curtin Univ, Dept Chem Engn, Perth, WA 6845, Australia

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Innovat Fuel Cell & Battery Technol, Atlanta, GA 30332 USA

[4] Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Coll Energy, State Key Lab Mat Oriented Chem Engn, 5 Xin Mofan Rd, Nanjing 210009, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 33期

关键词：

electrodes; energy storage; oxygen vacancy; perovskite oxides; supercapacitors; ELECTROCHEMICAL CAPACITORS; CERAMIC MEMBRANES; MATERIALS SCIENCE; STORAGE; PSEUDOCAPACITANCE; SURFACE; PERFORMANCE; NANOFIBERS; INSERTION; ARRAYS;

D O I：

10.1002/anie.201603601

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have synthesized and characterized perovskite-type SrCo0.9Nb0.1O3-delta (SCN) as a novel anion-intercalated electrode material for supercapacitors in an aqueous KOH electrolyte, demonstrating a very high volumetric capacitance of about 2034.6 Fcm(-3) (and gravimetric capacitance of ca. 773.6 Fg(-1)) at a current density of 0.5 Ag-1 while maintaining excellent cycling stability with a capacity retention of 95.7% after 3000 cycles. When coupled with an activated carbon (AC) electrode, the SCN/AC asymmetric supercapacitor delivered a specific energy density as high as 37.6 Wh kg(-1) with robust long-term stability.

引用

页码：9576 / 9579

页数：4

共 32 条

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