Molecularly-regulating oxygen-containing functional groups of ramie activated carbon for high-performance supercapacitors

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 665, С. 772 - 779

Опубликована: Март 27, 2024

Язык: Английский

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Boosting Capacitive Performance of S-Doped Carbon Fibers via Substrate-Oriented Activation Methodology

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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High-Performance Thienothiophene and Single Wall Carbon Nanotube-Based Supercapacitor as a Free-Standing and Flexible Hybrid Energy Storage Material

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(4), С. 1488 - 1494

Опубликована: Фев. 13, 2024

Long cycle life and high energy/power density are imperative for energy storage systems. Similarly, flexible free-standing electrodes important supercapacitor applications. Herein, we report, the first time, use of thienothiophene (TT) a single-walled carbon nanotube (SWCNT)-based hybrid material (TT-TPA-SWCNT) as high-performance supercapacitor. The synthesized TT derivative, TT-TPA, was directly attached to SWCNT through noncovalent interactions obtain TT-based hybrid, TT-TPA-SWCNT, film. film clarified by surface analysis methods scanning electron microscopy atomic force microscopy. TT-TPA-SWCNT used electrode in two-electrode system It displayed capacity 83.2 F g–1 at 5 mV s–1 scan rate, an excellent cyclic stability with 110% retention its initial specific capacitance after 7000 cycles long power ranged from 100 3000 W·kg–1, demonstrating that is promising nanomaterial

Язык: Английский

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A Comprehensive Evaluation of Biomass-Derived Activated Carbon Materials for Electrochemical Applications in Zinc-Ion Hybrid Supercapacitors

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(17), С. 7517 - 7533

Опубликована: Авг. 29, 2024

In the evolving domain of energy storage technologies, synergy sustainable materials and enhanced performance metrics is crucial. This study focuses on zinc-ion hybrid supercapacitors (ZHSs), distinguished by their impressive power densities. The research meticulously evaluates biomass-derived activated carbon (AC) as an effective electrode material, selecting four distinct biomass sources: jute sticks, olive leaves, mango date leaves. These were chosen due to plentiful availability rich lignocellulosic properties. Among configurations studied, stick derived AC (JC) stood out with its tailored morphology substantial specific surface area 1370 m2/g. design facilitated exceptional rate capabilities efficient ion transport, culminating in remarkable long-term stability. Electrochemical analyses across all revealed a comprehensive profile. JC-based ZHS exhibited capacitance 204 F/g, density 73 Wh/kg, 400 W/kg. comparison, OC-based (olive leaves), MC-based (mango DC-based (date leaves) ZHSs demonstrated capacitances 182, 155, 80 F/g; densities 64, 55, 28 respectively, maintained Interestingly, capacity retention 130% after 20,000 cycles, highlighting resilience consistency. A real-world application was successfully powering toy car solely our developed coin cell, showcasing practicality efficiency technology operational devices. findings underscore potential AC, particularly from developing supercapacitors. With high performance, demonstrates use complying circular economy concepts establishing benchmark for future applications.

Язык: Английский

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Surface functionalization of PS/PEI-derived hierarchical porous carbons doped with nitrogen and oxygen using melamine activation for supercapacitors

Surfaces and Interfaces, Год журнала: 2024, Номер 51, С. 104531 - 104531

Опубликована: Май 29, 2024

Язык: Английский

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Screen-Printed Stretchable Supercapacitors Based on Tin Sulfide-Decorated Face-Mask-Derived Activated Carbon Electrodes with High Areal Energy Density

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(9), С. 3558 - 3576

Опубликована: Апрель 18, 2024

In this work, tin sulfide nanosheets decorated on face-mask-derived activated carbon have been explored as electrode material for electrochemical supercapacitors. A hydrothermal route was employed to grow the surface and inside of high-surface-area carbon, at 850 °C, produce a hierarchical interconnected porous composite (ACFM-850/TS) structure. The presence in framework exposed active sites rapid adsorption/desorption electrolyte ions ensured high utilization surface. Furthermore, ACFM-850 prevented stacking/agglomeration sheets, thereby enhancing charge-transport kinetics electrodes. Benefiting from synergistic effect ACFM-850, resulting ACFM-850/TS exhibited an attractive specific capacitance 423 F g–1 0.5 current density superior rate capability (71.3% 30 density) 1.0 M Na2SO4 electrolyte. addition, we fabricated planar symmetric interdigitated supercapacitor stretchable Spandex fabric using carboxymethyl cellulose/NaClO4 solid-state gel employing scalable screen-printing process. as-prepared supercapacitors displayed ultrahigh energy 9.2 μWh cm–2 power 0.13 mW cm–2. they excellent cyclic stability 64% even after 10,000 charge–discharge cycles 42% 1000 continuous stretch (at 25% stretching)/release cycles. Such screen-printed with electrodes act promising low-cost energy-storage devices wearable flexible integrated electronic devices.

Язык: Английский

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Continuous and Scalable Manufacture of Coal-Derived Hierarchical Porous Carbon Dominated with Mesopores for High Rate-Performance Supercapacitors

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(9), С. 4268 - 4278

Опубликована: Май 1, 2024

The continuous and scalable manufacture of porous carbon electrode materials with controlled pore architecture holds paramount importance in the development efficient sustainable energy storage systems. Herein, a green industrially feasible physical activation strategy was proposed to produce heteroatom self-doped hierarchical carbons (HPCs) by using polyvinyl butyral (PVB) as sacrificial template cross-linking agent low-rank coal low-cost precursor. optimal HPC-20 has highly interconnected multiscale structure, large specific surface area, heteroatom-enriched surfaces. synergistic effect these advantages provides variety benefits, including fast charge/discharge rates abundant sites. Specifically, exhibited an appreciable capacitance 304 F g–1 at 0.5 A excellent rate performance (capacitance retention 65.8% 50 g–1). Furthermore, symmetric supercapacitor achieved maximum density 23.1 W h kg–1 power 450 1 M Na2SO4 electrolytes. This work proposes approach for large-scale production controllable structure from coal.

Язык: Английский

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Capacitance performance of N/O co-doped hierarchical porous carbon nanosheets synthesized via "one stone for three birds" strategy

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 694, С. 134167 - 134167

Опубликована: Май 3, 2024

Язык: Английский

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A Review on Biomass-Derived Activated Carbon for Next-Generation Supercapacitors: Cutting-Edge Advances and Future Prospects

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Fabrication of an asymmetric supercapacitor using a novel electrode design and introduce a robust machine learning model for its performance evaluation

Journal of Power Sources, Год журнала: 2024, Номер 613, С. 234911 - 234911

Опубликована: Июнь 20, 2024

Язык: Английский

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