Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 29, Pages 14691-14695Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm31080e
Keywords
-
Funding
- MEXT, Japan [17684018]
- Core Research for Evolutional Science and Technology (CREST) from the Japan Science and Technology Corporation (JST)
- Global COE program Integrated Materials Science'' [B-024]
- JSPS
Ask authors/readers for more resources
A MnO2/carbon composite comprised of single layer MnO2 nanosheets and acetylene black (AB) was assembled by simply mixing a MnO2 nanosheet colloidal suspension and AB suspension. MnO2 nanosheets were synthesized by a one-pot procedure and adsorbed onto AB aggregates as a single layer (monosheets) through electrostatic interactions. The one-pot synthesis ensures no unexfoliated material, unlike previous preparations. Galvanostatic charge-discharge measurements and cyclic voltammetry in organic electrolytes demonstrate that the MnO2/AB composite exhibits an excellent specific capacity and capacitance of 400 mA h g(-1) and 739 F g(-1), respectively, at a scan rate of 1 mV s(-1). The obtained specific capacity considerably exceeds the theoretical capacity; this can be explained by the extremely high fraction of single layer sheets from the one-pot procedure.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available