Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors
We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activ...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Fang, Jianhui [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method - Xiao, Hong ELSEVIER, 2013, the international journal on the science and technology of electrochemical energy systems, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:418 ; year:2019 ; day:1 ; month:04 ; pages:24-32 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.jpowsour.2019.01.076 |
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ELV046008519 |
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| 245 | 1 | 0 | |a Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors |
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| 520 | |a We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. | ||
| 520 | |a We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. | ||
| 650 | 7 | |a Solid-state supercapacitor |2 Elsevier | |
| 650 | 7 | |a Asymmetric supercapacitor |2 Elsevier | |
| 650 | 7 | |a Flexible supercapacitor |2 Elsevier | |
| 650 | 7 | |a Activated carbon electrode |2 Elsevier | |
| 650 | 7 | |a Redox mediator |2 Elsevier | |
| 700 | 1 | |a Miao, Xiaofei |4 oth | |
| 700 | 1 | |a Zhang, Xiangxin |4 oth | |
| 700 | 1 | |a Liu, Yongchuan |4 oth | |
| 700 | 1 | |a Chen, Sujing |4 oth | |
| 700 | 1 | |a Chen, Yuanqiang |4 oth | |
| 700 | 1 | |a Wang, Wei |4 oth | |
| 700 | 1 | |a Zhang, Yining |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Xiao, Hong ELSEVIER |t Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method |d 2013 |d the international journal on the science and technology of electrochemical energy systems |g New York, NY [u.a.] |w (DE-627)ELV00098745X |
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10.1016/j.jpowsour.2019.01.076 doi GBV00000000000542.pica (DE-627)ELV046008519 (ELSEVIER)S0378-7753(19)30086-2 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Fang, Jianhui verfasserin aut Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Elsevier Miao, Xiaofei oth Zhang, Xiangxin oth Liu, Yongchuan oth Chen, Sujing oth Chen, Yuanqiang oth Wang, Wei oth Zhang, Yining oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 https://doi.org/10.1016/j.jpowsour.2019.01.076 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 418 2019 1 0401 24-32 9 |
| spelling |
10.1016/j.jpowsour.2019.01.076 doi GBV00000000000542.pica (DE-627)ELV046008519 (ELSEVIER)S0378-7753(19)30086-2 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Fang, Jianhui verfasserin aut Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Elsevier Miao, Xiaofei oth Zhang, Xiangxin oth Liu, Yongchuan oth Chen, Sujing oth Chen, Yuanqiang oth Wang, Wei oth Zhang, Yining oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 https://doi.org/10.1016/j.jpowsour.2019.01.076 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 418 2019 1 0401 24-32 9 |
| allfields_unstemmed |
10.1016/j.jpowsour.2019.01.076 doi GBV00000000000542.pica (DE-627)ELV046008519 (ELSEVIER)S0378-7753(19)30086-2 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Fang, Jianhui verfasserin aut Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Elsevier Miao, Xiaofei oth Zhang, Xiangxin oth Liu, Yongchuan oth Chen, Sujing oth Chen, Yuanqiang oth Wang, Wei oth Zhang, Yining oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 https://doi.org/10.1016/j.jpowsour.2019.01.076 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 418 2019 1 0401 24-32 9 |
| allfieldsGer |
10.1016/j.jpowsour.2019.01.076 doi GBV00000000000542.pica (DE-627)ELV046008519 (ELSEVIER)S0378-7753(19)30086-2 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Fang, Jianhui verfasserin aut Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Elsevier Miao, Xiaofei oth Zhang, Xiangxin oth Liu, Yongchuan oth Chen, Sujing oth Chen, Yuanqiang oth Wang, Wei oth Zhang, Yining oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 https://doi.org/10.1016/j.jpowsour.2019.01.076 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 418 2019 1 0401 24-32 9 |
| allfieldsSound |
10.1016/j.jpowsour.2019.01.076 doi GBV00000000000542.pica (DE-627)ELV046008519 (ELSEVIER)S0378-7753(19)30086-2 DE-627 ger DE-627 rakwb eng 690 VZ 50.92 bkl Fang, Jianhui verfasserin aut Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Elsevier Miao, Xiaofei oth Zhang, Xiangxin oth Liu, Yongchuan oth Chen, Sujing oth Chen, Yuanqiang oth Wang, Wei oth Zhang, Yining oth Enthalten in Elsevier Xiao, Hong ELSEVIER Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method 2013 the international journal on the science and technology of electrochemical energy systems New York, NY [u.a.] (DE-627)ELV00098745X volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 https://doi.org/10.1016/j.jpowsour.2019.01.076 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 50.92 Meerestechnik VZ AR 418 2019 1 0401 24-32 9 |
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English |
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Enthalten in Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method New York, NY [u.a.] volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 |
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Enthalten in Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method New York, NY [u.a.] volume:418 year:2019 day:1 month:04 pages:24-32 extent:9 |
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Numerical modeling of wave–current forces acting on horizontal cylinder of marine structures by VOF method |
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Fang, Jianhui @@aut@@ Miao, Xiaofei @@oth@@ Zhang, Xiangxin @@oth@@ Liu, Yongchuan @@oth@@ Chen, Sujing @@oth@@ Chen, Yuanqiang @@oth@@ Wang, Wei @@oth@@ Zhang, Yining @@oth@@ |
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Fang, Jianhui |
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Fang, Jianhui ddc 690 bkl 50.92 Elsevier Solid-state supercapacitor Elsevier Asymmetric supercapacitor Elsevier Flexible supercapacitor Elsevier Activated carbon electrode Elsevier Redox mediator Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors |
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enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors |
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Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors |
| abstract |
We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. |
| abstractGer |
We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. |
| abstract_unstemmed |
We use a redox mediator pair - hydroquinone (for positive electrode) and sodium anthraquinone-2-sulfonate (for negative electrode) - to treat the activated carbon electrodes for fabricating asymmetric supercapacitors. This simple adsorption-based treatment improves the specific capacity of the activated carbon electrode from 69.3 mAh g−1 to 300.4 mAh g−1 (negative electrode) and 63.5 mAh g−1 to 301.1 mAh g−1 (positive electrode). The charge balance between the two electrodes is achieved by synchronous potential measurements on redox reaction of hydroquinone and anthraquinone-2-sulfonate. Under 5 A g−1, the asymmetric supercapacitor delivers a high energy density of 37.1 Wh kg−1 with the power density of 2087 W kg−1. Meanwhile, the asymmetric supercapacitor demonstrates excellent cycling stability, capable of retaining 81.8% of its capacity after 20000 cycles at 10 A g−1. A flexible solid-state asymmetric supercapacitor is fabricated with the treated electrode-pair and exhibits excellent flexing stability, high volumetric energy density (2.20 mWh cm−3 at 0.017 W cm−3), and good cycling stability (>91% capacity retention after 3000 cycles), which holds great potential for application in wearable electronics. |
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Enhancing the capacity of activated carbon electrodes by a redox mediator pair for the fabrication of flexible asymmetric solid-state supercapacitors |
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