Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors
Biomass-derived porous carbon (PC) has emerged as a promising candidate for electrode materials in energy storage applications, effective pretreatment of the precursor is a key strategy for enhancing the electrochemical performance of PC. However, challenges remain in achieving this goal through env...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Ultrasonics Sonochemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417724004620 |
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| author | Zhaocai Teng Kuihua Han Meimei Wang Jianhui Qi Jiangwei Liu Yingjie Li |
| author_facet | Zhaocai Teng Kuihua Han Meimei Wang Jianhui Qi Jiangwei Liu Yingjie Li |
| author_sort | Zhaocai Teng |
| collection | DOAJ |
| description | Biomass-derived porous carbon (PC) has emerged as a promising candidate for electrode materials in energy storage applications, effective pretreatment of the precursor is a key strategy for enhancing the electrochemical performance of PC. However, challenges remain in achieving this goal through environmentally friendly, simple, and efficient methods. In this paper, a dual-frequency ultrasonic-assisted enzymolysis strategy combined with carbonization-activation method was proposed to prepare high-performance garlic peel-derived PC (DUGPC) for supercapacitors. Gentle and effective sonobiocatalysis facilitates microstructural regulation and composition management of the precursor, granting DUGPC an impressive specific surface area (SSA, 3006 m2/g), improved pore distribution, low metal impurity content (less than 100 ppm) and high wettability. As anticipated, DUGPC demonstrates excellent specific capacitance (408.77 F/g at 1 A/g) and rate performance (retention is 81.8 % at 50 A/g) surpassing most recently reported biomass-based PCs. In addition, the assembled aqueous symmetric supercapacitor achieves an excellent energy density of 15.78 Wh kg−1 at a power density of 50.04 W kg−1 with a remarkable cycle stability of 95.5 % after 10,000 cycles at 5 A/g, and the assembled 2.8 V high-voltage organic supercapacitor even exhibits an ultra-high energy density of 58.96 Wh kg−1 at a power density of 139.86 W kg−1. Significantly, this dual-frequency ultrasonic-assisted enzymolysis strategy is expected to be applicable to various biomass wastes and promotes the high-value utilization of biomass in the field of energy storage. |
| format | Article |
| id | doaj-art-b2dc6c1af6c346f294cef192c2ac28c1 |
| institution | Kabale University |
| issn | 1350-4177 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj-art-b2dc6c1af6c346f294cef192c2ac28c12025-01-11T06:38:52ZengElsevierUltrasonics Sonochemistry1350-41772025-01-01112107213Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitorsZhaocai Teng0Kuihua Han1Meimei Wang2Jianhui Qi3Jiangwei Liu4Yingjie Li5Shandong Engineering Research Center for High-efficiency Energy Storage and Hydrogen Energy Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, ChinaShandong Engineering Research Center for High-efficiency Energy Storage and Hydrogen Energy Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China; Corresponding author at: No. 17923 Jingshi Road, Lixia District, Jinan, Shandong Province 250061, China.Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, ChinaShandong Engineering Research Center for High-efficiency Energy Storage and Hydrogen Energy Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, ChinaShandong Engineering Research Center for High-efficiency Energy Storage and Hydrogen Energy Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, ChinaShandong Engineering Research Center for High-efficiency Energy Storage and Hydrogen Energy Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, ChinaBiomass-derived porous carbon (PC) has emerged as a promising candidate for electrode materials in energy storage applications, effective pretreatment of the precursor is a key strategy for enhancing the electrochemical performance of PC. However, challenges remain in achieving this goal through environmentally friendly, simple, and efficient methods. In this paper, a dual-frequency ultrasonic-assisted enzymolysis strategy combined with carbonization-activation method was proposed to prepare high-performance garlic peel-derived PC (DUGPC) for supercapacitors. Gentle and effective sonobiocatalysis facilitates microstructural regulation and composition management of the precursor, granting DUGPC an impressive specific surface area (SSA, 3006 m2/g), improved pore distribution, low metal impurity content (less than 100 ppm) and high wettability. As anticipated, DUGPC demonstrates excellent specific capacitance (408.77 F/g at 1 A/g) and rate performance (retention is 81.8 % at 50 A/g) surpassing most recently reported biomass-based PCs. In addition, the assembled aqueous symmetric supercapacitor achieves an excellent energy density of 15.78 Wh kg−1 at a power density of 50.04 W kg−1 with a remarkable cycle stability of 95.5 % after 10,000 cycles at 5 A/g, and the assembled 2.8 V high-voltage organic supercapacitor even exhibits an ultra-high energy density of 58.96 Wh kg−1 at a power density of 139.86 W kg−1. Significantly, this dual-frequency ultrasonic-assisted enzymolysis strategy is expected to be applicable to various biomass wastes and promotes the high-value utilization of biomass in the field of energy storage.http://www.sciencedirect.com/science/article/pii/S1350417724004620Dual-frequency ultrasonicEnzymolysisGarlic peelPorous carbonStructure regulationSupercapacitor |
| spellingShingle | Zhaocai Teng Kuihua Han Meimei Wang Jianhui Qi Jiangwei Liu Yingjie Li Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors Ultrasonics Sonochemistry Dual-frequency ultrasonic Enzymolysis Garlic peel Porous carbon Structure regulation Supercapacitor |
| title | Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors |
| title_full | Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors |
| title_fullStr | Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors |
| title_full_unstemmed | Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors |
| title_short | Dual-frequency ultrasonic-assisted enzymolysis for synthesis of microstructure regulated biomass-derived porous carbon for high-performance supercapacitors |
| title_sort | dual frequency ultrasonic assisted enzymolysis for synthesis of microstructure regulated biomass derived porous carbon for high performance supercapacitors |
| topic | Dual-frequency ultrasonic Enzymolysis Garlic peel Porous carbon Structure regulation Supercapacitor |
| url | http://www.sciencedirect.com/science/article/pii/S1350417724004620 |
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