Hierarchical porous carbon microrods derived from albizia flowers for high performance supercapacitors

Wu, Fuming; Gao, Jianping; Zhai, Xiangang; Xie, Ming; Sun, Yu; Kang, Huiying; Tian, Qiang; Qiu, H.

doi:10.1016/j.carbon.2019.02.072

Cited by 219 publications

(77 citation statements)

References 56 publications

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“…Supercapacitors is an essential reversible storage and releaser of electricity technology [ 2 ]; it can be divided into an electrochemical double-layer capacitor and pesudocapacitor, while the pesudocapacitor usually reveals a higher capacitance because of the Faradaic process from redox reaction [ 3 ]. Carbon-based supercapacitors have been considered as preferable alternative devices to replace traditional energy storage systems on account of their multiple advantages, including low weight and cost, high power delivery, and long cycling stability [ 4 , 5 , 6 ]. Heteroatom-doped carbon materials also have been an efficient method to enhance the pseudocapacitance effects, and the fabrication process is relatively easy to handle, versatile, and general [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen, Phosphorus and Sulfur Co-Doped Pyrolyzed Bacterial Cellulose Nanofibers for Supercapacitors

Wang

Xia³

et al. 2020

Nanomaterials

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Heteroatom doping is an effective way to raise the electrochemical properties of carbon materials. In this paper, a novel electrode material including nitrogen, phosphorus, and sulfur co-doped pyrolyzed bacterial cellulose (N/P/S-PBC) nanofibers was produced. The morphologies, structure characteristics and electrochemical performances of the materials were investigated by Scanning electron microscopy, Fourier transform infrared spectra, X-ray diffraction patterns, X-ray photoelectronic spectroscopy, N2 sorption analysis and electrochemical measurements. When 3.9 atom% of nitrogen, 1.22 atom% of phosphorus and 0.6 atom% of sulfur co-doped into PBC, the specific capacitance of N/P/S-PBC at 1.0 A/g was 255 F/g and the N/P/S-PBC supercapacitors’ energy density at 1 A/g was 8.48 Wh/kg with a power density of 489.45 W/kg, which were better than those of the N/P-PBC and N/S-PBC supercapacitors. This material may be a very good candidate as the promising electrode materials for high-performance supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Nitrogen, Phosphorus and Sulfur Co-Doped Pyrolyzed Bacterial Cellulose Nanofibers for Supercapacitors

Wang

Xia³

et al. 2020

Nanomaterials

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“…With the increase in the consumption of fossil fuels and environmental pollution, renewable and clean energy sources have attracted great attention. [1][2][3][4] However, since renewable and clean energy sources (for example, solar and wind energy) depend heavily on weather, the development of safe, cheap and efficient energy storage and conversion devices is urgently needed. In recent years, supercapacitors have attracted extensive attention owing to their environmental friendliness, long service life, high power density and short charging time.…”

Section: Introductionmentioning

confidence: 99%

An ultrasonic-assisted synthesis of rice-straw-based porous carbon with high performance symmetric supercapacitors

et al. 2020

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“…Carbon materials, such as activated carbon, graphene, carbon nanotubes, porous carbon, and so on, are frequently used as active component in EDLC because of the superior chemical stability, facile preparation, and adjustable structure. Valid specific surface area, appropriate pore size distribution matching ion sizes of electrolyte, and good electrical conductivity are indispensable for improving charge storage ability of EDLC .…”

Section: Introductionmentioning

confidence: 99%

A 3D Carbon Foam Derived from Phenol Resin via CsCl Soft‐Templating Approach for High‐Performance Supercapacitor

et al. 2020

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Carbon with a 3D foam structure is synthesized by a one‐step strategy using low‐molecular‐weight phenolic resin as the precursor and CsCl as a salt template. Their electrochemical performance as electrodes is studied for symmetric supercapacitors. The distinct effect of CsCl addition amount on morphology, pore structure, electric conductivity, and electrochemical performance is further investigated. With appropriate CsCl addition amount, 3D carbon foam is harvested with abundant micropores and mesopores with a surface area beyond 1590 m2 g−1. It is tested as an electrode in a coin‐type symmetric supercapacitor with 6 m KOH and 1 m TEABF4/MeCN as the electrolyte. The 3D carbon foam electrode displays specific capacitance of 259.3 F g−1 in 6 m KOH and 127.9 F g−1 in 1 m TEABF4/MeCN at 0.5 A g−1. Notably, it exhibits high energy density of 27.7 W h kg−1 in 1 m TEABF4/MeCN. After 10 000 cycles, the specific capacitance remains at 96.9% in 6 m KOH, indicating good cycle stability. The superior performance of 3D carbon foam is attributed to larger surface area, higher electric conductivity, and unique 3D foam structure with sufficient 3D ion‐accessible channels. This work develops a simple, facile method to synthesize high‐performance supercapacitor electrode materials.

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Hierarchical porous carbon microrods derived from albizia flowers for high performance supercapacitors

Cited by 219 publications

References 56 publications

Nitrogen, Phosphorus and Sulfur Co-Doped Pyrolyzed Bacterial Cellulose Nanofibers for Supercapacitors

Nitrogen, Phosphorus and Sulfur Co-Doped Pyrolyzed Bacterial Cellulose Nanofibers for Supercapacitors

An ultrasonic-assisted synthesis of rice-straw-based porous carbon with high performance symmetric supercapacitors

A 3D Carbon Foam Derived from Phenol Resin via CsCl Soft‐Templating Approach for High‐Performance Supercapacitor

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