Abstract
We report on the formation and electrochemical properties of Co3O4/Pt nanocomposite electrodes, which were fabricated by an RF magnetron co-sputtering system, for micro-electrochemical capacitors. High-resolution electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy examinations are performed to characterize the structural and chemical properties of the Co3O4/Pt nanocomposite electrodes. It is shown that the Co3O4/Pt6020 nanocomposite electrodes where RF powers of 60 and 20 W were applied to Co3O4 and Pt targets, respectively, give capacitance of 391.6 F/cm3 at 100 mV/s along with superb high-rate performance, which is much higher that those of Co3O4 only and other nanocomposite electrodes. The improvement is explained in terms of the formation of Co3O4-Pt combined nanostructures and their good electrical conductivity.
| Original language | English |
|---|---|
| Journal | Journal of Alloys and Compounds |
| Volume | 478 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2009 Jun 10 |
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Keywords
- Eelectrochemical reactions
- Electrode materials
- Nanostructured materials
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys
Cite this
Effect of Pt nanostructures on the electrochemical properties of Co3O4 electrodes for micro-electrochemical capacitors. / Ahn, Hyo Jin; Seong, Tae Yeon.
In: Journal of Alloys and Compounds, Vol. 478, No. 1-2, 10.06.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of Pt nanostructures on the electrochemical properties of Co3O4 electrodes for micro-electrochemical capacitors
AU - Ahn, Hyo Jin
AU - Seong, Tae Yeon
PY - 2009/6/10
Y1 - 2009/6/10
N2 - We report on the formation and electrochemical properties of Co3O4/Pt nanocomposite electrodes, which were fabricated by an RF magnetron co-sputtering system, for micro-electrochemical capacitors. High-resolution electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy examinations are performed to characterize the structural and chemical properties of the Co3O4/Pt nanocomposite electrodes. It is shown that the Co3O4/Pt6020 nanocomposite electrodes where RF powers of 60 and 20 W were applied to Co3O4 and Pt targets, respectively, give capacitance of 391.6 F/cm3 at 100 mV/s along with superb high-rate performance, which is much higher that those of Co3O4 only and other nanocomposite electrodes. The improvement is explained in terms of the formation of Co3O4-Pt combined nanostructures and their good electrical conductivity.
AB - We report on the formation and electrochemical properties of Co3O4/Pt nanocomposite electrodes, which were fabricated by an RF magnetron co-sputtering system, for micro-electrochemical capacitors. High-resolution electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy examinations are performed to characterize the structural and chemical properties of the Co3O4/Pt nanocomposite electrodes. It is shown that the Co3O4/Pt6020 nanocomposite electrodes where RF powers of 60 and 20 W were applied to Co3O4 and Pt targets, respectively, give capacitance of 391.6 F/cm3 at 100 mV/s along with superb high-rate performance, which is much higher that those of Co3O4 only and other nanocomposite electrodes. The improvement is explained in terms of the formation of Co3O4-Pt combined nanostructures and their good electrical conductivity.
KW - Eelectrochemical reactions
KW - Electrode materials
KW - Nanostructured materials
UR - http://www.scopus.com/inward/record.url?scp=67349115703&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349115703&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2008.11.144
DO - 10.1016/j.jallcom.2008.11.144
M3 - Article
VL - 478
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -