Supersonically Sprayed Zn2SnO4/SnO2/CNT Nanocomposites for High-Performance Supercapacitor Electrodes

Edmund Samuel; Tae Gun Kim; Chan Woo Park; Bhavana Joshi; Mark T. Swihart; Sam S. Yoon

doi:10.1021/acssuschemeng.9b02549

Supersonically Sprayed Zn₂SnO₄/SnO₂/CNT Nanocomposites for High-Performance Supercapacitor Electrodes

Edmund Samuel, Tae Gun Kim, Chan Woo Park, Bhavana Joshi, Mark T. Swihart, Sam S. Yoon

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

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
Pages (from-to)	14031-14040
Number of pages	10
Journal	ACS Sustainable Chemistry and Engineering
Volume	7
Issue number	16
DOIs	https://doi.org/10.1021/acssuschemeng.9b02549
Publication status	Published - 2019 Aug 19

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acssuschemeng.9b02549

Cite this

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title = "Supersonically Sprayed Zn2SnO4/SnO2/CNT Nanocomposites for High-Performance Supercapacitor Electrodes",

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.",

keywords = "CNT, Cold spray technique, Nanocomposite, Supercapacitor, ZnSnO",

author = "Edmund Samuel and Kim, {Tae Gun} and Park, {Chan Woo} and Bhavana Joshi and Swihart, {Mark T.} and Yoon, {Sam S.}",

note = "Funding Information: This research was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M1A2A2936760), NRF-2017R1A2B4005639, and NRF-2013R1A5A1073861.",

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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, Sam S.

N1 - Funding Information: This research was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M1A2A2936760), NRF-2017R1A2B4005639, and NRF-2013R1A5A1073861.

PY - 2019/8/19

Y1 - 2019/8/19

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.

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