Abstract
In this study, we demonstrate rapid and facile supersonic cold spray deposition of Zn2SnO4/SnO2/CNT nanocomposite supercapacitor electrodes with promising combinations of power and energy density. Cyclic voltammetry confirmed the capacitive behavior of the optimized electrode, with specific capacitance reaching 260 F·g-1 at a current density of 10 A·g-1. We attribute this high performance to the optimal combination of CNT (carbon nanotube; double-layer capacitance) and Zn2SnO4/SnO2 (pseudocapacitance) properties. The mesoporous and accessible surface of the CNT significantly contributed to the excellent retention (approximately 93%) of the specific capacitance after 15000 galvanostatic charge/discharge cycles. In addition, the supercapacitor exhibited a remarkable energy density, electrochemical properties, and mechanical stability. The materials and approach presented here can enable cost-effective, efficient, and scalable production of high-performance supercapacitor electrodes.
| Original language | English |
|---|---|
| Journal | ACS Sustainable Chemistry and Engineering |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
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Keywords
- CNT
- Cold spray technique
- Nanocomposite
- Supercapacitor
- ZnSnO
ASJC Scopus subject areas
- Chemistry(all)
- Environmental Chemistry
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
Cite this
Supersonically Sprayed Zn2SnO4/SnO2/CNT Nanocomposites for High-Performance Supercapacitor Electrodes. / Samuel, Edmund; Kim, Tae Gun; Park, Chan Woo; Joshi, Bhavana; Swihart, Mark T.; Yoon, Suk Goo.
In: ACS Sustainable Chemistry and Engineering, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Supersonically Sprayed Zn2SnO4/SnO2/CNT Nanocomposites for High-Performance Supercapacitor Electrodes
AU - Samuel, Edmund
AU - Kim, Tae Gun
AU - Park, Chan Woo
AU - Joshi, Bhavana
AU - Swihart, Mark T.
AU - Yoon, Suk Goo
PY - 2019/1/1
Y1 - 2019/1/1
N2 - In this study, we demonstrate rapid and facile supersonic cold spray deposition of Zn2SnO4/SnO2/CNT nanocomposite supercapacitor electrodes with promising combinations of power and energy density. Cyclic voltammetry confirmed the capacitive behavior of the optimized electrode, with specific capacitance reaching 260 F·g-1 at a current density of 10 A·g-1. We attribute this high performance to the optimal combination of CNT (carbon nanotube; double-layer capacitance) and Zn2SnO4/SnO2 (pseudocapacitance) properties. The mesoporous and accessible surface of the CNT significantly contributed to the excellent retention (approximately 93%) of the specific capacitance after 15000 galvanostatic charge/discharge cycles. In addition, the supercapacitor exhibited a remarkable energy density, electrochemical properties, and mechanical stability. The materials and approach presented here can enable cost-effective, efficient, and scalable production of high-performance supercapacitor electrodes.
AB - In this study, we demonstrate rapid and facile supersonic cold spray deposition of Zn2SnO4/SnO2/CNT nanocomposite supercapacitor electrodes with promising combinations of power and energy density. Cyclic voltammetry confirmed the capacitive behavior of the optimized electrode, with specific capacitance reaching 260 F·g-1 at a current density of 10 A·g-1. We attribute this high performance to the optimal combination of CNT (carbon nanotube; double-layer capacitance) and Zn2SnO4/SnO2 (pseudocapacitance) properties. The mesoporous and accessible surface of the CNT significantly contributed to the excellent retention (approximately 93%) of the specific capacitance after 15000 galvanostatic charge/discharge cycles. In addition, the supercapacitor exhibited a remarkable energy density, electrochemical properties, and mechanical stability. The materials and approach presented here can enable cost-effective, efficient, and scalable production of high-performance supercapacitor electrodes.
KW - CNT
KW - Cold spray technique
KW - Nanocomposite
KW - Supercapacitor
KW - ZnSnO
UR - http://www.scopus.com/inward/record.url?scp=85070720060&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070720060&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.9b02549
DO - 10.1021/acssuschemeng.9b02549
M3 - Article
AN - SCOPUS:85070720060
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
SN - 2168-0485
ER -