Abstract
Graphene-MnO composite and hollow-structured MnO powders are prepared by a simple one-pot spray pyrolysis process. The graphene content in the graphene-MnO composite powder is estimated to be 10 wt.%. The fine MnO crystals of size several tens of nanometers are uniformly distributed all over the graphene. The BET specific surface areas of the graphene-MnO composite and hollow-structured MnO powders are found to be 20 and 5 m2 g-1, respectively. The graphene-MnO composite powders have high initial discharge and charge capacities of 1207 and 849 mA h g-1, respectively, at a current density of 500 mA g-1. The initial discharge and charge capacities of the hollow-structured MnO powders are 1004 and 673 mA h g-1, respectively. The discharge capacities of the graphene-MnO composite and hollow-structured MnO powders for the 130th cycle are 1313 and 701 mA h g-1, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 441-447 |
| Number of pages | 7 |
| Journal | Electrochimica Acta |
| Volume | 132 |
| DOIs | |
| Publication status | Published - 2014 Jun 20 |
| Externally published | Yes |
Fingerprint
Keywords
- anode material
- Graphene
- lithium ion battery
- manganese monoxide
- spray pyrolysis
ASJC Scopus subject areas
- Chemical Engineering(all)
- Electrochemistry
Cite this
Electrochemical properties of graphene-MnO composite and hollow-structured MnO powders prepared by a simple one-pot spray pyrolysis process. / Lee, Su Min; Choi, Seung Ho; Lee, Jung Kul; Kang, Yun Chan.
In: Electrochimica Acta, Vol. 132, 20.06.2014, p. 441-447.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electrochemical properties of graphene-MnO composite and hollow-structured MnO powders prepared by a simple one-pot spray pyrolysis process
AU - Lee, Su Min
AU - Choi, Seung Ho
AU - Lee, Jung Kul
AU - Kang, Yun Chan
PY - 2014/6/20
Y1 - 2014/6/20
N2 - Graphene-MnO composite and hollow-structured MnO powders are prepared by a simple one-pot spray pyrolysis process. The graphene content in the graphene-MnO composite powder is estimated to be 10 wt.%. The fine MnO crystals of size several tens of nanometers are uniformly distributed all over the graphene. The BET specific surface areas of the graphene-MnO composite and hollow-structured MnO powders are found to be 20 and 5 m2 g-1, respectively. The graphene-MnO composite powders have high initial discharge and charge capacities of 1207 and 849 mA h g-1, respectively, at a current density of 500 mA g-1. The initial discharge and charge capacities of the hollow-structured MnO powders are 1004 and 673 mA h g-1, respectively. The discharge capacities of the graphene-MnO composite and hollow-structured MnO powders for the 130th cycle are 1313 and 701 mA h g-1, respectively.
AB - Graphene-MnO composite and hollow-structured MnO powders are prepared by a simple one-pot spray pyrolysis process. The graphene content in the graphene-MnO composite powder is estimated to be 10 wt.%. The fine MnO crystals of size several tens of nanometers are uniformly distributed all over the graphene. The BET specific surface areas of the graphene-MnO composite and hollow-structured MnO powders are found to be 20 and 5 m2 g-1, respectively. The graphene-MnO composite powders have high initial discharge and charge capacities of 1207 and 849 mA h g-1, respectively, at a current density of 500 mA g-1. The initial discharge and charge capacities of the hollow-structured MnO powders are 1004 and 673 mA h g-1, respectively. The discharge capacities of the graphene-MnO composite and hollow-structured MnO powders for the 130th cycle are 1313 and 701 mA h g-1, respectively.
KW - anode material
KW - Graphene
KW - lithium ion battery
KW - manganese monoxide
KW - spray pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=84899127280&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899127280&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2014.03.157
DO - 10.1016/j.electacta.2014.03.157
M3 - Article
AN - SCOPUS:84899127280
VL - 132
SP - 441
EP - 447
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -