Coal tar pitch-derived porous carbon prepared in deep eutectic spinning solution via electrospinning for supercapacitor electrodes

Liu, Qian; Wang, Tao; Wang, Caige; Wu, Dongling

doi:10.1016/j.cej.2023.148292

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2023.148292

|View full text |Cite

Coal tar pitch-derived porous carbon prepared in deep eutectic spinning solution via electrospinning for supercapacitor electrodes

Qian Liu,

Tao Wang,

Caige Wang

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article3

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Pre‐Oxidating and Pre‐Carbonizing to Regulate the Composition and Structure of Coal Tar Pitch: The Fabrication of Porous Carbon for Supercapacitor Applications

Liu,

Wu,

Wang

et al. 2024

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

The capacitive properties of supercapacitors highly rely on the reasonable design of high‐performance electrode materials. Herein, a synergetic strategy of pre‐oxidation and pre‐carbonization is proposed to prepare coal tar pitch (CTP) based porous carbon. The formation mechanism of porous carbon is revealed. Pre‐oxidation increases the heteroatom content and promotes the decomposition of polycyclic aromatic hydrocarbons into small molecules, which is more conducive to improving the subsequent activation and enhancing the microporous specific surface area. Also, the autoclave pre‐carbonization promotes the polymerization of the precursors and increases the carbon yield. Benefiting from the synergistic effect of pre‐oxidation and pre‐carbonation, the obtained carbon exhibits a superior specific capacitance of 365 F g−1. Meanwhile, ZnCl2 is used as a hydrogen‐bonding acceptor to synthesize ZnCl2‐EG/PVA deep eutectic solvent (DES) gel, and it is applicable to acidic, neutral, and alkaline electrolytes. The capacitor assembled with the prepared porous carbon and DES gel electrolyte achieves a high energy density of 41.3 Wh kg−1 and works well in unconventional temperatures (−40–75 °C). This work confirms the effect of pre‐oxidation and pre‐carbonization on the fabrication of CTP‐based carbon material and expects to prepare porous carbon using other pre‐oxidation/carbonization agents.

show abstract

Pre‐Oxidating and Pre‐Carbonizing to Regulate the Composition and Structure of Coal Tar Pitch: The Fabrication of Porous Carbon for Supercapacitor Applications

Liu,

Wu,

Wang

et al. 2024

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

Supermolecule‐Opitimized Defect Engineering of Rich Nitrogen‐Doped Porous Carbons for Advanced Zinc‐Ion Hybrid Capacitors

Zhang,

Qin,

Zuo

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

Pitch‐based porous carbons with adjustable surface chemical property and controllable pore structure are regarded as promising cathode materials for aqueous zinc‐ion hybrid capacitors (ZIHCs), while its disordered carbon matrix and microstructure as well as insufficient surface defects often result in low Zn2+‐storage capacity and poor rate capability of ZIHCs. Herein, a synergetic strategy of self‐assembled supermolecule and enriched defective carbon engineering was developed to achieve ultrahigh edge‐nitrogen doping for ZIHCs. The crystallite defects and surface structure of porous carbon could be effectively achieved through grafting electronegative oxygen‐containing small molecules and high‐level nitrogen‐containing functional groups between modified polycyclic aromatic hydrocarbon and supermolecule framework. The optimized three‐dimensional carbon structure delivered high capacity of 218 mAh g‐1 at 0.2 A g‐1, fast charge/discharge capability, enhanced energy density (165.4 Wh kg‐1) and superior cycling stability (95% retention after 10000 cycles as cathode of ZIHCs). This provided new insight into the controllable synthesis of carbon cathodes for ZIHCs and expects to prepare functional porous carbon by supermolecules and special precursors.

show abstract

Porous carbon nanosheets from coal tar pitch for zinc ion hybrid capacitor

Wei,

Liu,

Zhang

et al. 2024

Ionics

View full text Add to dashboard Cite

As a by-product of coal chemical industry, it is very suitable to be used as carbon precursor to prepare carbon materials because of its rich aromatic hydrocarbons. However, the preparation of carbon materials often uses a lot of metal oxides and strong alkali, which will not only cause corrosion to the equipment, but also produce wastewater. Herein, the mixture of bicarbonate and hydrogen oxalate was used as template and activator to synthesize porous carbon nanosheets, which presents high speci c surface area of 784.8 m 2 g − 1 and multiple ion transport channels. Due to those merits, the PCNS 2 cathode displays superior zinc ion storage performance, such as high speci c capacity of 210.1 F g − 1 , excellent energy density and power output of 83.3 Wh kg − 1 and 17.2 kW kg − 1 and long cycle life with capacity retention of 98.57% after 11000 cycles. This work provides an avenue to prepare porous carbon nanosheets for energy storage devices.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Coal tar pitch-derived porous carbon prepared in deep eutectic spinning solution via electrospinning for supercapacitor electrodes

Cited by 3 publications

References 34 publications

Pre‐Oxidating and Pre‐Carbonizing to Regulate the Composition and Structure of Coal Tar Pitch: The Fabrication of Porous Carbon for Supercapacitor Applications

Pre‐Oxidating and Pre‐Carbonizing to Regulate the Composition and Structure of Coal Tar Pitch: The Fabrication of Porous Carbon for Supercapacitor Applications

Supermolecule‐Opitimized Defect Engineering of Rich Nitrogen‐Doped Porous Carbons for Advanced Zinc‐Ion Hybrid Capacitors

Porous carbon nanosheets from coal tar pitch for zinc ion hybrid capacitor

Contact Info

Product

Resources

About