An insight into the nanoarchitecture of electrode materials on the performance of supercapacitors

Coordination Chemistry Reviews, Год журнала: 2024, Номер 518, С. 216080 - 216080

Опубликована: Июль 14, 2024

Supercapacitors have garnered significant attention in recent years owing to their exceptional attributes, such as high power density, prolonged cycle stability, and the capacity fulfil gap between traditional capacitor lithium-ion battery. Nanostructures with different dimensions (zero-dimensional, 0D; one-dimensional, 1D; two-dimensional, 2D; three-dimensional, 3D) were employed electrodes. Such material's architecture at nanoscale has resulted outstanding electrochemical characteristics, contributing development of high-performance Supercapacitors. Recent advances design nanostructured electrode materials for highlighted new insight into structure property relationship is provided this authoritative review. Unique classification based on dimensionality, namely, 0D, 1D, 2D 3D was emphasis performance, specific capacitance, energy density cyclability. The impact nanostructures key Supercapacitor properties that include charge transfer kinetics, diffusion, rate capability, well life also highlighted. These insights serve a guidance commercially viable applications day life, instance, drones used war-zones.

Язык: Английский

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High performance hierarchical porous carbon derived from waste shrimp shell for supercapacitor electrodes

Journal of Energy Storage, Год журнала: 2023, Номер 62, С. 106900 - 106900

Опубликована: Фев. 20, 2023

Язык: Английский

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Rearrangement of Pore Structure-Enabled Micropore-Dominant N,O Co-Doped Carbon for Ultrafast Charge/Discharge Rate Supercapacitors at Commercial-Scale Mass Loading

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер unknown

Опубликована: Дек. 8, 2024

N-doped porous carbon materials possess abundant pores and nitrogen functionalities, holding significant potential for supercapacitors. However, achieving precise control of the pore structure to enhance electrochemical performance remains challenging in large-scale production commercial electrode materials. Herein, Chinese yam, a rhizome plant rich dopamine, is selected as precursor prepare N,O-codoped hierarchical (N/O-PC-3) via one-step carbonization activation process. The precisely controlled by adjusting degree aggregation zinc-containing hydrolysates biomass through synergistic action ZnCl2 (activating agent) NH4Cl (nitrogen source). Due its micropore-dominant structure, high (10.5 at. %) oxygen (13.1 content, along with good electronic conductivity excellent wettability, N/O-PC-3 exhibits remarkable frequency response, an ultrahigh rate up 5 V s–1 gravimetric, volumetric, areal capacitances 414 F g–1, 311 cm–3, 23.8 μF cm–2 at 1 A respectively. It also demonstrates capability (326 g–1 100 79% capacitance retention). Even mass loading 15 mg cm–2, achieves gravimetric 223 g–1. assembled symmetric supercapacitor delivers energy density 22.9 W h kg–1 power 102.9 kg–1, making it highly desirable practical application storage. Additionally, this work offers straightforward approach controlling

Язык: Английский

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Recent advances of carbon dots based emerging materials for supercapacitors applications

Journal of Energy Storage, Год журнала: 2024, Номер 85, С. 111118 - 111118

Опубликована: Март 6, 2024

Язык: Английский

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Carbon Quantum Dot-Functionalized Dermis-Derived Transparent Electronic Skin for Multimodal Human Motion Signal Monitoring and Construction of Self-Powered Triboelectric Nanogenerator

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(35), С. 46771 - 46788

Опубликована: Авг. 21, 2024

Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.

Язык: Английский

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Activated Carbon Derived from the Agricultural Waste Camellia Seed Shell for High-Performance Supercapacitors

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(2), С. 469 - 478

Опубликована: Янв. 9, 2024

Under the background of current promotion global green, environmental protection, and energy conservation, sustainable conversion low-cost agricultural waste biomass into high value-added products has become a hot topic. Herein, camellia seed shells obtained after pressing oil are used to prepare porous carbon materials with specific surface area (SSA) excellent electrochemical properties for application supercapacitors. The effects different chemical activators mass ratios on pore structure shell-derived activated (CSSC) were investigated. It been found that CSSC by KOH presents physical performances, structures all prepared carbons predominantly combination mesopores micropores. Especially, owing SSA (1219 m2 g–1) CSSC–KOH-1:3 material, electrode provides an outstanding capacitance 305 F g–1 at density 0.5 A g–1. Furthermore, symmetric supercapacitor assembled electrodes can deliver (15.37 W h kg–1) power (12.9 kW kg–1), it still maintain cycling stability even 10,000 charge discharge processes. Therefore, this work significant exploration high-value shell preparation high-performance

Язык: Английский

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La/Sn dual pseudo-active sites stabilized biowaste Chinese bitter melon-derived locally graphitized hierarchical porous carbons for VOSO4 redox-enhanced supercapacitors

Journal of Energy Storage, Год журнала: 2025, Номер 110, С. 115343 - 115343

Опубликована: Янв. 9, 2025

Язык: Английский

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Regulation of nitrogen species on biomass-based porous activated carbon surfaces by varying nitrogen sources for high-performance supercapacitors

Journal of Power Sources, Год журнала: 2025, Номер 636, С. 236387 - 236387

Опубликована: Фев. 22, 2025

Язык: Английский

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Fabrication of Phyllanthus emblica leaves derived high-performance activated carbon-based symmetric supercapacitor with excellent cyclic stability

Journal of Energy Storage, Год журнала: 2023, Номер 66, С. 107395 - 107395

Опубликована: Апрель 26, 2023

Язык: Английский

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Carbon Quantum Dots: Basics, Properties, and Fundamentals

ACS symposium series, Год журнала: 2024, Номер unknown, С. 3 - 42

Опубликована: Апрель 17, 2024

Carbon quantum dots (CQDs) belong to a remarkable category of nanocarbon materials with unique properties because their nanoscale dimensions. These nanocarbons have earned significant attention exceptional and advantages, making them versatile in wide range applications. This chapter delves into the fundamental principles underlying CQDs, along synthetic procedures outstanding characteristics. characteristics empower precise tuning optical electronic properties, setting stage for diverse Their pho­to­lu­mi­nes­cence—combined biocompatibility, water solubility, various surface functional groups—position CQDs as crucial components fields nanotechnology, science, medicine. As result, this highlights broad spectrum applications where made contributions 21st century.

Язык: Английский

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