Nitrogen-doped asphaltene-based porous carbon fibers as supercapacitor electrode material with high specific capacitance

Ni, Guosong; Qin, Fangfang; Guo, Zhongya; Wang, Jiashi; Shen, Wenzhong

doi:10.1016/j.electacta.2019.135270

Cited by 63 publications

(28 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with the work by Ni et al, EDLS cells prepared in this work, using bitumen-derived asphaltene, behave more like ideal supercapacitors, as shown by the rectangular CV curves and symmetric charge/discharge galvanostatic curves. The specific capacitance values, cycle life, and resistance values for the cells in aqueous KOH are comparable to the values reported by Ni et al [26] 3.3. Capacitive Performance of ACF-3 in Ionic Liquid Electrolyte Two electrodes were fabricated from ACF-3.…”

Section: Capacitive Performance Of Cf and Acf-r In Aqueous Electrolytesupporting

confidence: 88%

“…[35] Using an aqueous electrolyte, Banda et al and Ni et al achieved E s values much lower than those attainable in nonaqueous electrolytes. [26,36]…”

Section: Energy and Power Comparisonmentioning

confidence: 99%

“…High capacitance values (301 F g −1 at a specific current of 1 A g −1 ) were reported; however, relatively low specific energy and power values were obtained. [ 26 ]…”

Section: Introductionmentioning

confidence: 99%

“…High capacitance values (301 F g À1 at a specific current of 1 A g À1 ) were reported; however, relatively low specific energy and power values were obtained. [26] For this work, asphaltene powder, as a pentane insoluble residue from the extraction of bitumen in oil sands, was provided by CNOOC Petroleum North America ULC (Nexen) from their Long Lake Upgrader in Alberta. The asphaltene powder was used to produce carbon fibers that were carbonized and then fabricated into EDLS electrodes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Superior Performance of Electrochemical Double Layer Supercapacitor Made with Asphaltene Derived Activated Carbon Fibers

et al. 2020

View full text Add to dashboard Cite

High energy and power values are obtained from fabricated electrochemical double layer supercapacitor (EDLS) cells derived from asphaltene precursors, which are a solid by‐product of bitumen extraction in pentane solvents. Chemical activation, using dry KOH, is used to activate carbon fibers. Chemical activation introduces high specific surface areas (SSAs) into the fiber microstructure by partially etching the carbon. The electrodes are prepared by mixing activated fibers, polytetrafluoroethylene (PTFE), and acetylene black to form flexible electrode films. The unique bimodal pore size distribution with large micropore and mesopore volumes (micropore volume as high as 0.88 cm3 g−1), from chemical activation, generate high‐performance EDLS symmetric cells with capacitance values exceeding 310 F g−1 in aqueous electrolytes and 210 F g−1 in ionic liquid electrolytes (at a specific current of 40 mA g−1). A specific energy of 36 Wh kg−1 at a specific power of 525 W kg−1 is reached in ionic liquid electrolytes.

show abstract

Section: Capacitive Performance Of Cf and Acf-r In Aqueous Electrolytesupporting

confidence: 88%

“…[35] Using an aqueous electrolyte, Banda et al and Ni et al achieved E s values much lower than those attainable in nonaqueous electrolytes. [26,36]…”

Section: Energy and Power Comparisonmentioning

confidence: 99%

“…High capacitance values (301 F g −1 at a specific current of 1 A g −1 ) were reported; however, relatively low specific energy and power values were obtained. [ 26 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Superior Performance of Electrochemical Double Layer Supercapacitor Made with Asphaltene Derived Activated Carbon Fibers

et al. 2020

View full text Add to dashboard Cite

show abstract

“…[21][22][23] Although such porosity tuning can improve the low-rate performance by creating a predominance of micropores, it is difficult to obtain an enhanced high-rate supercapacitor performance due to the sluggish ion diffusion. [24][25][26] In particular, in the case of all-solid-state supercapacitors using a high viscous electrolyte such as gel-type electrolyte, the electrochemical performance may be further degraded because it prevents the electrolyte from diffusing to the surface of carbon electrode. [18] Thus, despite these efforts, further advanced research and development are needed in order to facilitate the interface between the electrolyte and the electrode and then improve the ion diffusion capability by forming a mesoporous structure in the carbon fibers for practical application.…”

Section: Introductionmentioning

confidence: 99%

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

Lee

2021

Adv Funct Materials

View full text Add to dashboard Cite

Flexible fibrous supercapacitors (FFS) are considered the next-generation wearable energy storage devices because they provide reliable safety, ecofriendliness, and high power density. In particular, the FFS is desirable for application to wearable electronics because it can overcome disadvantages of the lithium-ion battery (LIB), such as the hazard of explosion and the complex manufacturing process. Nevertheless, the practical application of the FFS continues to be inhibited by the poor energy storage performance due to the limited specific surface area, poor electrical properties, and low wettability of the carbon fiber electrode. Herein, for the first time, the surface engineering of an FFS using nitrogen and fluorine codoped mesoporous carbon fibers (FFS-NFMCF) is described, and the synergistic effect of porosity tuning and heteroatom codoping upon the electrochemical performance is demonstrated. The resultant supercapacitor shows a high specific capacitance of 243.9 mF cm −2 at a current density of 10.0 µA cm −2 and good ultrafast cycling stability with capacitance retention of 91.3% for up to 10 000 cycles at a current density of 250.0 µA cm −2 . More interestingly, the FFS-NFMCF exhibits good mechanical properties and remarkable safety in practical application, thus demonstrating its feasibility for use in wearable electronic textiles.

show abstract

Fundamentals and Scientific Challenges in Structural Design of Cathode Materials for Zinc‐Ion Hybrid Supercapacitors

Javed

Najam

Hussain

et al. 2022

Advanced Energy Materials

112

View full text Add to dashboard Cite

One of the most exciting new developments in energy storage technology is Zn‐ion hybrid supercapacitors (ZHSCs). ZHSCs combine Zn‐ion batteries with supercapacitors (SCs) to address the energy and power needs of portable devices and electric automobiles. Low energy density and the development of cathode material are significant issues for ZHSCs. This review provides an in‐depth investigation of charge storage mechanisms from SCs to ZHSCs. The advantages/disadvantages of ZHSCs, the recent development of cathode materials, and the new design for device fabrications are critically summarized. New cathode materials should be developed to achieve high energy density while preserving the inherent power capability and stability. People increasingly engage with smart electronic and hybrid gadgets, demanding flexible, resilient, and highly safe energy storage devices. ZHSC has emerged as a complete alternative to risky sodium‐ion/lithium‐ion technologies. An overview of all reported carbon‐based, biomass‐derived carbons, metal oxides, MOFs, COFs, MXenes, graphene, and composite materials employed for ZHSCs is comprehensively provided. Furthermore, cathode materials for flexible, micro, wire‐shaped, printed, and photo‐rechargeable ZHSCs are also examined with their practical challenges. This review is anticipated to offer valuable recommendations for designing and manipulating cathode materials for high‐performance ZHSCs to achieve real‐world applications.

show abstract

Nitrogen-doped asphaltene-based porous carbon fibers as supercapacitor electrode material with high specific capacitance

Cited by 63 publications

References 68 publications

Superior Performance of Electrochemical Double Layer Supercapacitor Made with Asphaltene Derived Activated Carbon Fibers

Superior Performance of Electrochemical Double Layer Supercapacitor Made with Asphaltene Derived Activated Carbon Fibers

Surface Engineering of Carbon via Coupled Porosity Tuning and Heteroatom‐Doping for High‐Performance Flexible Fibrous Supercapacitors

Fundamentals and Scientific Challenges in Structural Design of Cathode Materials for Zinc‐Ion Hybrid Supercapacitors

Contact Info

Product

Resources

About