Narrow-porous pitch-based carbon fibers of superior capacitance properties in aqueous electrolytes

Torchała, Kamila; Kierzek, Krzysztof; Gryglewicz, Grażyna; Machnikowski, J.

doi:10.1016/j.electacta.2015.03.153

Cited by 30 publications

(14 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of nitrogencontaining carbon precursors appears to be more desirable because it avoids the use of post-treatments and guarantees a uniform distribution of nitrogen atoms in the bulk of the material [17]. The preparation of ACs from various N-enriched carbon precursors, including polymers, as well as their electrochemical behavior, has been previously reported [18][19][20][21][22][23]. In addition, good correlations between capacitance and nitrogen content have been observed [7].…”

Section: Introductionmentioning

confidence: 96%

Nitrogen-containing chitosan-based carbon as an electrode material for high-performance supercapacitors

et al. 2016

View full text Add to dashboard Cite

Nitrogen-containing activated carbons were prepared from chitosan, a widely available and inexpensive biopolysaccharide, by a simple procedure and tested as electrode material in supercapacitors. The physical activation of chitosan chars with CO 2 led to carbons with a very high nitrogen content (up to 5.4 wt%) and moderate surface areas (1000-1100 m 2 g -1 ). Only chitosan-based activated carbons with a similar microporous structure were considered in this study to evaluate the effect of the nitrogen content and distribution on their electrochemical performance. The N-containing activated carbons were tested in two-and three-electrode supercapacitors using an aqueous electrolyte (1 M H 2 SO 4 ), and they exhibited superior surface capacitance (19.5 lF cm -2 ) and pseudocapacitance compared to a commercial activated carbon with a negligible nitrogen content and similar microporosity. The low oxygen content and the presence of stable quaternary nitrogen improved the charge propagation on the chitosan-based carbons, which was confirmed by the high capacity retention of 83 %. The chitosan-based carbons exhibited excellent cyclic stability and maintained 100 % of their capacitance after 5000 charge/discharge cycles at a current density of 1 A g -1 . These results demonstrate the suitability of chitosan-based carbons for application in energy storage systems.Electronic supplementary material The online version of this article

show abstract

Section: Introductionmentioning

confidence: 96%

Nitrogen-containing chitosan-based carbon as an electrode material for high-performance supercapacitors

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The planar and bulky structure in the conventional energy storage devices such as supercapacitors and lithium ion batteries (LIBs) cannot effectively meet the requirement to be flexible, integratable and weaveable [1][2][3][4][5][6][7][8][9][10] . However, the electrochemical performances are much lower than their planar counterparts due to the difficulty in finding appropriate fibrous electrodes that are expected to be flexible and strong with combined high electrical conductivity and electrochemical activity 18,19 . However, the electrochemical performances are much lower than their planar counterparts due to the difficulty in finding appropriate fibrous electrodes that are expected to be flexible and strong with combined high electrical conductivity and electrochemical activity 18,19 .…”

Section: Introductionmentioning

confidence: 99%

Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries

et al. 2015

View full text Add to dashboard Cite

show abstract

“…More valuable results were presented by Torchala et al [ 179 ]. In their study, particulate and fibrous ACs were derived from the same graphitizable precursor: synthetic anthracene oil-based pitch.…”

Section: Activated Carbons For Edlcmentioning

confidence: 97%

“…To minimize these drawbacks, the fibers can be pulverized to form anisomeric particles. Indeed, an electrochemical investigation clearly revealed the superior behavior of the resultant materials relative to conventional ACs [ 178 , 179 , 180 , 181 ].…”

Section: Activated Carbons For Edlcmentioning

confidence: 99%

See 1 more Smart Citation

Activated Carbons and Their Evaluation in Electric Double Layer Capacitors

Kierzek

Gryglewicz

2020

Molecules

View full text Add to dashboard Cite

This review presents a summary of the manufacturing of activated carbons (ACs) as electrode materials for electric double layer capacitors. Commonly used techniques of open and closed porosity determination (gas adsorption, immersion calorimetry, X-ray and neutrons scattering) were briefly described. AC production methods (laboratory and industrial) were detailed presented with the stress on advantages and drawbacks of each ones in the field of electrode materials of supercapacitor. We discussed all general parameters of the activation process and their influence on the production efficiency and the porous structure of ACs. We showed that porosity development of ACs is not the only factor influencing capacity properties. The role of pore size distribution, raw material origin, final carbon structure ordering, particles morphology and purity must be also taken into account. The impact of surface chemistry of AC was considered not only in the context of pseudocapacity but also other important factors, such as inter-particle conductivity, maximal operating voltage window and long-term stability.

show abstract

Narrow-porous pitch-based carbon fibers of superior capacitance properties in aqueous electrolytes

Cited by 30 publications

References 41 publications

Nitrogen-containing chitosan-based carbon as an electrode material for high-performance supercapacitors

Nitrogen-containing chitosan-based carbon as an electrode material for high-performance supercapacitors

Aligned carbon nanotube/molybdenum disulfide hybrids for effective fibrous supercapacitors and lithium ion batteries

Activated Carbons and Their Evaluation in Electric Double Layer Capacitors

Contact Info

Product

Resources

About