Abstract
One-dimensional, hydrous ruthenium oxide nanotubes (RuO2·1.84H2O) have been successfully achieved using a template-free, microwave-hydrothermal process. These were found to be amorphous in nature and have a large specific surface area of 250 m2·g-1, producing a specific and volumetric capacitance of 511 F·g-1 and 531 F·cm-3, respectively, at a discharging current density of 0.5 A·g-1. When used as an electrode material in an electrochemical capacitor or ultracapacitor, they produced a significant improvement in capacitance, rate capability, and cyclability that can be attributed to the hollow nature of tubes allowing greater contact between the active surface of the electrode and the electrolyte. (Figure Presented).
| Original language | English |
|---|---|
| Pages (from-to) | 16686-16693 |
| Number of pages | 8 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 7 |
| Issue number | 30 |
| DOIs | |
| Publication status | Published - 2015 Aug 5 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
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Template-Free Synthesis of Ruthenium Oxide Nanotubes for High-Performance Electrochemical Capacitors. / Kim, Ji Young; Kim, Kwang Heon; Kim, Hyun Kyung; Park, Sang Hoon; Roh, Kwang Chul; Kim, Kwang Bum.
In: ACS Applied Materials and Interfaces, Vol. 7, No. 30, 05.08.2015, p. 16686-16693.Research output: Contribution to journal › Article
TY - JOUR
T1 - Template-Free Synthesis of Ruthenium Oxide Nanotubes for High-Performance Electrochemical Capacitors
AU - Kim, Ji Young
AU - Kim, Kwang Heon
AU - Kim, Hyun Kyung
AU - Park, Sang Hoon
AU - Roh, Kwang Chul
AU - Kim, Kwang Bum
PY - 2015/8/5
Y1 - 2015/8/5
N2 - One-dimensional, hydrous ruthenium oxide nanotubes (RuO2·1.84H2O) have been successfully achieved using a template-free, microwave-hydrothermal process. These were found to be amorphous in nature and have a large specific surface area of 250 m2·g-1, producing a specific and volumetric capacitance of 511 F·g-1 and 531 F·cm-3, respectively, at a discharging current density of 0.5 A·g-1. When used as an electrode material in an electrochemical capacitor or ultracapacitor, they produced a significant improvement in capacitance, rate capability, and cyclability that can be attributed to the hollow nature of tubes allowing greater contact between the active surface of the electrode and the electrolyte. (Figure Presented).
AB - One-dimensional, hydrous ruthenium oxide nanotubes (RuO2·1.84H2O) have been successfully achieved using a template-free, microwave-hydrothermal process. These were found to be amorphous in nature and have a large specific surface area of 250 m2·g-1, producing a specific and volumetric capacitance of 511 F·g-1 and 531 F·cm-3, respectively, at a discharging current density of 0.5 A·g-1. When used as an electrode material in an electrochemical capacitor or ultracapacitor, they produced a significant improvement in capacitance, rate capability, and cyclability that can be attributed to the hollow nature of tubes allowing greater contact between the active surface of the electrode and the electrolyte. (Figure Presented).
UR - http://www.scopus.com/inward/record.url?scp=84938633722&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84938633722&partnerID=8YFLogxK
U2 - 10.1021/acsami.5b04360
DO - 10.1021/acsami.5b04360
M3 - Article
AN - SCOPUS:84938633722
VL - 7
SP - 16686
EP - 16693
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 30
ER -