Fabrication and Characterization of the Graphene Composites Containing Embedded Manganese Dioxide Nanoparticles

被引：3

作者：

Byun, Sang-Chul ^{[1
]}

Park, Soo-Jin ^{[2
]}

Kim, Il ^{[3
]}

Kim, Seok ^{[1
]}

机构：

[1] Pusan Natl Univ, Sch Chem & Biochem Engn, 2,Busandaehak Ro 63 Beon Gil, Busan 609735, South Korea

[2] Inha Univ, Dept Chem, 100 Inharo Namgu, Incheon 22212, South Korea

[3] Pusan Natl Univ, Dept Polymer Engn, 2,Busandaehak Ro 63 Beon Gil, Busan 609735, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2018年 / 18卷 / 01期

关键词：

Supercapacitor; Metal Oxide; Manganese Dioxide; Reduced Graphene Oxide; CARBON MATERIALS; PERFORMANCE; ELECTRODES; NANOSHEETS; BEHAVIORS; OXIDE;

D O I：

10.1166/jnn.2018.14586

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Graphene composites containing embedded manganese dioxide (MnO2) were fabricated by simple solvothermal method. 100 nm to 200 nm size of nanoparticles were anchored on reduced graphene oxide layers. The MnO2/RGO composite with optimized molar concentration of manganese precursors in fixed graphene oxide mass was showed the highest specific capacitance of 186 F/g at 1 A/g. In addition, cycle life performance of MnO2/RGO composite was improved by using graphene having high electrical conductivity as a substrate. This result was related with prevention for collapse of the manganese nanoparticle. The structure and morphology analysis was confirmed by field emission scanning electron microscopy (FE-SEM) and Fourier-transform infrared spectroscopy (FT-IR). FE-SEM images explicitly revealed that MnO2 particles were attached on reduced graphene oxide layers.

引用

页码：284 / 287

页数：4

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