Pitch-based 3D tremella-like porous carbon with cavitary structures: Applications in symmetric capacitors and zinc ion capacitors

Journal of Energy Storage, Год журнала: 2024, Номер 86, С. 111220 - 111220

Опубликована: Март 11, 2024

Язык: Английский

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Solid-liquid redox reaction-assisted construction of hierarchical porous carbon derived from coal for zinc ion hybrid capacitors

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер unknown, С. 118925 - 118925

Опубликована: Янв. 1, 2025

Язык: Английский

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Study on the transformative characteristics of mesophase asphalt formation and the electrochemical performance of its derived porous carbon

Fuel, Год журнала: 2025, Номер 387, С. 134396 - 134396

Опубликована: Янв. 20, 2025

Язык: Английский

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Heteroatom self-doped graphitic carbon materials from Sargassum thunbergii with improved supercapacitance performance

Advanced Sensor and Energy Materials, Год журнала: 2024, Номер 3(2), С. 100102 - 100102

Опубликована: Апрель 12, 2024

It is well-known that high specific surface area and improved pore structure significantly desired for the application of supercapacitor based on biomass-based activated carbon. Herein, Sargassum thunbergii was selected as carbon precursor. Then, a simple environmentally friendly method designed to synthesize heteroatom self-doped porous materials via synchronous activation graphitization by using K2FeO4. Our results demonstrated temperature plays an important role in structure, morphology, degree graphitization, thus affecting performance supercapacitance. thunbergii-based graphitized carbons STGPC-2 sample (calcination at 700 °C) has large (1641.98 m2 g-1), volume (0.91 cm3 microporosity (Vmicro=0.62 g-1, more than 68%), certain graphitization. In three-electrode system, The electrode exhibited capacitance 325.5 F g-1 0.5 A displays rate capability (248 10 6 M KOH electrolyte). symmetric exhibits energy density 21.3 Wh kg-1 (at power 450 W kg-1) excellent long-term cycling stability (97% retention after 3000 cycles) 1 Na2SO4 electrolyte.

Язык: Английский

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Mesophase pitch-derived porous carbon constructed by template/activation synchronous pore-forming technology for electrochemical energy storage

Surfaces and Interfaces, Год журнала: 2024, Номер 51, С. 104570 - 104570

Опубликована: Июнь 3, 2024

Язык: Английский

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Vesicular porous carbon with outstanding electrochemical performances in Zn-based devices: Extracted from asphalt and wood precursors

Journal of Energy Storage, Год журнала: 2025, Номер 113, С. 115561 - 115561

Опубликована: Фев. 5, 2025

Язык: Английский

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Improvement in capacitive and Zn-storage performance of asphalt-based N, O, and Mo-doped porous carbon by Mo-catalytic oxidative modification

Separation and Purification Technology, Год журнала: 2024, Номер 355, С. 129641 - 129641

Опубликована: Сен. 10, 2024

Язык: Английский

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Highly stable aqueous Zn−I2 batteries enabled by the synergistic adsorption/conversion effect via porous graphitic iodine host

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 703, С. 135330 - 135330

Опубликована: Сен. 10, 2024

Язык: Английский

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Sustainable utilization of waste biomass (Benincasa hispida): Synthesis of N, O-doped foamy porous carbon with high capacitive properties by one-step oxidation-activation

Journal of Energy Storage, Год журнала: 2024, Номер 107, С. 114887 - 114887

Опубликована: Дек. 8, 2024

Язык: Английский

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Highly Stable Aqueous Zn−I2batteries Enabled by the Synergistic Adsorption/Conversion Effect Via Porous Graphitic Iodine Host

Опубликована: Янв. 1, 2024

Aqueous zinc-iodide batteries (AZIBs) are considered to be the promising candidate after lithium-ion due their low cost and high safety. However, poor electrical conductivity of iodine notorious shuttle effect brought about by resolvable polyiodides have seriously hindered widespread application prospects AZIBs. In this work, we develop a sample effective strategy for synthesizing N-doped hierarchical porous graphitized carbon (CN-Mg-CaCO3) that shows great potential as host material confinement. The unique structure with graphitic domains synergistic effects surface adsorption efficient conversion contribute performance AZIBs, notable specific capacity (185 mA h g-1 at 0.1 g-1), impressive rate capability (114 10 A excellent long-term cycling stability (85% retention 104 cycles 5 g-1). elaborately constructed conductive skeleton enhances utilization, while redox reaction I2/I- occurs without formation intermediates I3-. Additionally, presence adsorbed Zn2+ leads enhanced pseudo-capacitance. This research introduces innovative approaches broadens new ideas developing cathode materials

Язык: Английский

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