Mesoporous-assembled MnO2 with large specific surface area

被引：17

作者：

Zhang, Gaini ^{[1
,2
]}

Ren, Lijun ^{[1
,2
]}

Yan, Zhe ^{[1
,2
]}

Kang, Liping ^{[1
,2
]}

Lei, Zhibin ^{[1
,2
]}

Xu, Hua ^{[1
,2
]}

Shi, Feng ^{[1
,2
]}

Liu, Zong-Huai ^{[1
,2
]}

机构：

[1] Shaanxi Normal Univ, Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710062, Peoples R China

[2] Shaanxi Normal Univ, Sch Mat Sci & Engn, Xian 710062, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 28期

基金：

中国国家自然科学基金;

关键词：

MANGANESE OXIDE; ELECTROCHEMICAL CAPACITORS; OXYGEN REDUCTION; NANOFLAKES; IONS;

D O I：

10.1039/c5ta03326h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mesoporous-assembled MnO2 with large specific surface area was prepared by heating a delaminated MnO2 nanosheet slurry with NH4HSO4 at 175 degrees C. When the molar ratio of NH4HSO4 to MnO2 is 2.1, the obtained material had the largest specific surface area of 456 m(2) g(-1), which gives a high specific capacitance of 281 F g(-1) at a current density of 0.25 A g(-1) and excellent cycling performance with about 1.9% loss after 2000 cycles.

引用

收藏

页码：14567 / 14572

页数：6

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