Abstract
MnO 2 nanostructures with various morphologies were synthesized by the hydrothermal method with control over the reaction temperature and dwell time. One dimensional (1D) nanoneedle structure can self-assemble to form three dimensional (3D) microspheres of MnO 2 nanoneedles at 95°C by extending the dwell time from 3 hours to 15 hours. Alternatively, the 3D microspheres of nanoneedles can transform into 1D nanobelts and nanorods by increasing the reaction temperature to 120°C and 165°C, respectively, while maintaining constant dwell time of 15 hours. The supercapacitance of these nanostructures shows strong morphology dependence, and nanobelts have the highest specific capacitance of 323.7 F g -1 .
| Original language | English |
|---|---|
| Title of host publication | Solid State Ionic Devices 8 - NEMCA |
| Pages | 185-193 |
| Number of pages | 9 |
| Edition | 40 |
| DOIs | |
| State | Published - 1 Dec 2011 |
| Event | Solid State Ionic Devices 8 - NEMCA - 218th ECS Meeting - Las Vegas, NV, United States Duration: 10 Oct 2010 → 15 Oct 2010 |
Publication series
| Name | ECS Transactions |
|---|---|
| Number | 40 |
| Volume | 33 |
| ISSN (Print) | 1938-5862 |
| ISSN (Electronic) | 1938-6737 |
Conference
| Conference | Solid State Ionic Devices 8 - NEMCA - 218th ECS Meeting |
|---|---|
| Country | United States |
| City | Las Vegas, NV |
| Period | 10/10/10 → 15/10/10 |
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Morphological transformations and electrochemical properties of hydrothermally synthesized MnO 2 nanostructures . / Shahani, A. J.; Wu, J.; Wu, Laying; Wang, Q.; Zhou, X. D.
Solid State Ionic Devices 8 - NEMCA. 40. ed. 2011. p. 185-193 (ECS Transactions; Vol. 33, No. 40).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Morphological transformations and electrochemical properties of hydrothermally synthesized MnO 2 nanostructures
AU - Shahani, A. J.
AU - Wu, J.
AU - Wu, Laying
AU - Wang, Q.
AU - Zhou, X. D.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - MnO 2 nanostructures with various morphologies were synthesized by the hydrothermal method with control over the reaction temperature and dwell time. One dimensional (1D) nanoneedle structure can self-assemble to form three dimensional (3D) microspheres of MnO 2 nanoneedles at 95°C by extending the dwell time from 3 hours to 15 hours. Alternatively, the 3D microspheres of nanoneedles can transform into 1D nanobelts and nanorods by increasing the reaction temperature to 120°C and 165°C, respectively, while maintaining constant dwell time of 15 hours. The supercapacitance of these nanostructures shows strong morphology dependence, and nanobelts have the highest specific capacitance of 323.7 F g -1 .
AB - MnO 2 nanostructures with various morphologies were synthesized by the hydrothermal method with control over the reaction temperature and dwell time. One dimensional (1D) nanoneedle structure can self-assemble to form three dimensional (3D) microspheres of MnO 2 nanoneedles at 95°C by extending the dwell time from 3 hours to 15 hours. Alternatively, the 3D microspheres of nanoneedles can transform into 1D nanobelts and nanorods by increasing the reaction temperature to 120°C and 165°C, respectively, while maintaining constant dwell time of 15 hours. The supercapacitance of these nanostructures shows strong morphology dependence, and nanobelts have the highest specific capacitance of 323.7 F g -1 .
UR - http://www.scopus.com/inward/record.url?scp=84863144525&partnerID=8YFLogxK
U2 - 10.1149/1.3589196
DO - 10.1149/1.3589196
M3 - Conference contribution
AN - SCOPUS:84863144525
SN - 9781607682509
T3 - ECS Transactions
SP - 185
EP - 193
BT - Solid State Ionic Devices 8 - NEMCA
ER -