Spray-dried nanoporous NiO/PANI:PSS composite microspheres for high-performance asymmetric supercapacitors

Er Chieh Cho, Cai Wan Chang-Jian, Kuen Chan Lee, Jen Hsien Huang, Bo Cheng Ho, You Ren Ding, Yu Sheng Hsiao

研究成果: 雜誌貢獻文章

摘要

In this study, we used a spray-drying method to synthesize a hierarchically structured binary nanocomposite comprising highly porous NiO nanosheets and polyaniline:poly(sodium 4-styrenesulfonate) (PANI:PSS) materials. In this system, the porous NiO nanosheets—obtained through thermal decomposition of β-Ni(OH)2 derived from microwave-assisted hydrothermal treatment—dispersed well in the PANI:PSS solution. The homogeneous suspension was then processed through spray-drying and crosslinking of PANI:PSS and GOPS to form NiO/PANI:PSS microspheres. The PANI polymer served as a good conductor and thin spacer that prevented the NiO nanosheets from undergoing layer-to-layer stacking. Moreover, the crosslinked PANI:PSS acted as a binder that held all of the active materials together, leading to high mechanical integrity and excellent water-resistance. Through a synergistic effect in this unique nanoarchitecture, the NiO/PANI:PSS nanocomposite displayed a higher capacitance (834 F/g) at 1 A/g compared with that of NiO (380 F/g) and PANI:PSS (264.5 F/g) individually. Furthermore, the NiO/PANI:PSS composite displayed remarkable rate performance and outstanding cycling life—88.9% retention of specific capacitance after 3000 repeated charge/discharge tests—as a result of its low resistance and high (SSA). We fabricated asymmetric supercapacitors (ASCs) incorporating NiO/PANI:PSS and active carbon (AC) to further explore the capacitive performance of the composite. The as-fabricated devices also delivered remarkable performance, with an energy density of 32.84 Wh/kg, a power density of 375 W/kg, and excellent cycle life.

原文英語
文章編號107066
期刊Composites Part B: Engineering
175
DOIs
出版狀態已發佈 - 十月 15 2019

指紋

Polyaniline
Microspheres
Sodium
Composite materials
Spray drying
Nanosheets
Nanocomposites
Capacitance
Supercapacitor
styrenesulfonic acid polymer
polyaniline
Crosslinking
Binders
Life cycle
Suspensions
Polymers
Pyrolysis
Carbon
Microwaves
Water

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

引用此文

Spray-dried nanoporous NiO/PANI:PSS composite microspheres for high-performance asymmetric supercapacitors. / Cho, Er Chieh; Chang-Jian, Cai Wan; Lee, Kuen Chan; Huang, Jen Hsien; Ho, Bo Cheng; Ding, You Ren; Hsiao, Yu Sheng.

於: Composites Part B: Engineering, 卷 175, 107066, 15.10.2019.

研究成果: 雜誌貢獻文章

Cho, Er Chieh ; Chang-Jian, Cai Wan ; Lee, Kuen Chan ; Huang, Jen Hsien ; Ho, Bo Cheng ; Ding, You Ren ; Hsiao, Yu Sheng. / Spray-dried nanoporous NiO/PANI:PSS composite microspheres for high-performance asymmetric supercapacitors. 於: Composites Part B: Engineering. 2019 ; 卷 175.
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abstract = "In this study, we used a spray-drying method to synthesize a hierarchically structured binary nanocomposite comprising highly porous NiO nanosheets and polyaniline:poly(sodium 4-styrenesulfonate) (PANI:PSS) materials. In this system, the porous NiO nanosheets—obtained through thermal decomposition of β-Ni(OH)2 derived from microwave-assisted hydrothermal treatment—dispersed well in the PANI:PSS solution. The homogeneous suspension was then processed through spray-drying and crosslinking of PANI:PSS and GOPS to form NiO/PANI:PSS microspheres. The PANI polymer served as a good conductor and thin spacer that prevented the NiO nanosheets from undergoing layer-to-layer stacking. Moreover, the crosslinked PANI:PSS acted as a binder that held all of the active materials together, leading to high mechanical integrity and excellent water-resistance. Through a synergistic effect in this unique nanoarchitecture, the NiO/PANI:PSS nanocomposite displayed a higher capacitance (834 F/g) at 1 A/g compared with that of NiO (380 F/g) and PANI:PSS (264.5 F/g) individually. Furthermore, the NiO/PANI:PSS composite displayed remarkable rate performance and outstanding cycling life—88.9{\%} retention of specific capacitance after 3000 repeated charge/discharge tests—as a result of its low resistance and high (SSA). We fabricated asymmetric supercapacitors (ASCs) incorporating NiO/PANI:PSS and active carbon (AC) to further explore the capacitive performance of the composite. The as-fabricated devices also delivered remarkable performance, with an energy density of 32.84 Wh/kg, a power density of 375 W/kg, and excellent cycle life.",
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T1 - Spray-dried nanoporous NiO/PANI:PSS composite microspheres for high-performance asymmetric supercapacitors

AU - Cho, Er Chieh

AU - Chang-Jian, Cai Wan

AU - Lee, Kuen Chan

AU - Huang, Jen Hsien

AU - Ho, Bo Cheng

AU - Ding, You Ren

AU - Hsiao, Yu Sheng

PY - 2019/10/15

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AB - In this study, we used a spray-drying method to synthesize a hierarchically structured binary nanocomposite comprising highly porous NiO nanosheets and polyaniline:poly(sodium 4-styrenesulfonate) (PANI:PSS) materials. In this system, the porous NiO nanosheets—obtained through thermal decomposition of β-Ni(OH)2 derived from microwave-assisted hydrothermal treatment—dispersed well in the PANI:PSS solution. The homogeneous suspension was then processed through spray-drying and crosslinking of PANI:PSS and GOPS to form NiO/PANI:PSS microspheres. The PANI polymer served as a good conductor and thin spacer that prevented the NiO nanosheets from undergoing layer-to-layer stacking. Moreover, the crosslinked PANI:PSS acted as a binder that held all of the active materials together, leading to high mechanical integrity and excellent water-resistance. Through a synergistic effect in this unique nanoarchitecture, the NiO/PANI:PSS nanocomposite displayed a higher capacitance (834 F/g) at 1 A/g compared with that of NiO (380 F/g) and PANI:PSS (264.5 F/g) individually. Furthermore, the NiO/PANI:PSS composite displayed remarkable rate performance and outstanding cycling life—88.9% retention of specific capacitance after 3000 repeated charge/discharge tests—as a result of its low resistance and high (SSA). We fabricated asymmetric supercapacitors (ASCs) incorporating NiO/PANI:PSS and active carbon (AC) to further explore the capacitive performance of the composite. The as-fabricated devices also delivered remarkable performance, with an energy density of 32.84 Wh/kg, a power density of 375 W/kg, and excellent cycle life.

KW - Asymmetric supercapacitor

KW - NiO

KW - PANI

KW - Porous structure

KW - Spray-dry

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