A facile and template-free hydrothermal synthesis of Mn 3O 4 nanorods on graphene sheets for supercapacitor electrodes with long cycle stability

Jeong Woo Lee; Anthony S. Hall; Jong Duk Kim; Thomas E. Mallouk

doi:10.1021/cm203697w

A facile and template-free hydrothermal synthesis of Mn ₃O ₄ nanorods on graphene sheets for supercapacitor electrodes with long cycle stability

Jeong Woo Lee, Anthony S. Hall, Jong Duk Kim, Thomas E. Mallouk

Research output: Contribution to journal › Article › peer-review

716 Scopus citations

Abstract

Graphene/Mn ₃O ₄ composites were prepared by a simple hydrothermal process from KMnO ₄ using ethylene glycol as a reducing agent. Mn ₃O ₄ nanorods of 100 nm to 1 μm length were observed to be well-dispersed on graphene sheets. To assess the properties of these materials for use in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements were performed. Graphene/Mn ₃O ₄ composites could be charged and discharged faster and had higher capacitance than free Mn ₃O ₄ nanorods. The capacitance of the composites was 100% retained after 10 000 cycles at a charging rate of 5 A/g.

Original language	English (US)
Pages (from-to)	1158-1164
Number of pages	7
Journal	Chemistry of Materials
Volume	24
Issue number	6
DOIs	https://doi.org/10.1021/cm203697w
State	Published - Mar 27 2012

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

Access to Document

10.1021/cm203697w

Cite this

@article{65050c52feed4d14a482b3aebbb86d27,

title = "A facile and template-free hydrothermal synthesis of Mn 3O 4 nanorods on graphene sheets for supercapacitor electrodes with long cycle stability",

abstract = "Graphene/Mn 3O 4 composites were prepared by a simple hydrothermal process from KMnO 4 using ethylene glycol as a reducing agent. Mn 3O 4 nanorods of 100 nm to 1 μm length were observed to be well-dispersed on graphene sheets. To assess the properties of these materials for use in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements were performed. Graphene/Mn 3O 4 composites could be charged and discharged faster and had higher capacitance than free Mn 3O 4 nanorods. The capacitance of the composites was 100% retained after 10 000 cycles at a charging rate of 5 A/g.",

author = "Lee, {Jeong Woo} and Hall, {Anthony S.} and Kim, {Jong Duk} and Mallouk, {Thomas E.}",

year = "2012",

month = mar,

day = "27",

doi = "10.1021/cm203697w",

language = "English (US)",

volume = "24",

pages = "1158--1164",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - A facile and template-free hydrothermal synthesis of Mn 3O 4 nanorods on graphene sheets for supercapacitor electrodes with long cycle stability

AU - Lee, Jeong Woo

AU - Hall, Anthony S.

AU - Kim, Jong Duk

AU - Mallouk, Thomas E.

PY - 2012/3/27

Y1 - 2012/3/27

N2 - Graphene/Mn 3O 4 composites were prepared by a simple hydrothermal process from KMnO 4 using ethylene glycol as a reducing agent. Mn 3O 4 nanorods of 100 nm to 1 μm length were observed to be well-dispersed on graphene sheets. To assess the properties of these materials for use in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements were performed. Graphene/Mn 3O 4 composites could be charged and discharged faster and had higher capacitance than free Mn 3O 4 nanorods. The capacitance of the composites was 100% retained after 10 000 cycles at a charging rate of 5 A/g.

AB - Graphene/Mn 3O 4 composites were prepared by a simple hydrothermal process from KMnO 4 using ethylene glycol as a reducing agent. Mn 3O 4 nanorods of 100 nm to 1 μm length were observed to be well-dispersed on graphene sheets. To assess the properties of these materials for use in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements were performed. Graphene/Mn 3O 4 composites could be charged and discharged faster and had higher capacitance than free Mn 3O 4 nanorods. The capacitance of the composites was 100% retained after 10 000 cycles at a charging rate of 5 A/g.

UR - http://www.scopus.com/inward/record.url?scp=84859154678&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859154678&partnerID=8YFLogxK

U2 - 10.1021/cm203697w

DO - 10.1021/cm203697w

M3 - Article

AN - SCOPUS:84859154678

SN - 0897-4756

VL - 24

SP - 1158

EP - 1164

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 6

ER -

A facile and template-free hydrothermal synthesis of Mn ₃O ₄ nanorods on graphene sheets for supercapacitor electrodes with long cycle stability

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this