Microporous waste charcoals for redox-mediated supercapacitors

Hyun, Jong Chan; Kwak, Jungwon; Yun, Young Soo

doi:10.1016/j.jiec.2019.06.036

Cited by 8 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effect of PPD as a redox organic electrolyte was confirmed by Yun and co-workers . In the study, microporous carbon was produced from the KOH activation of charcoal waste.…”

Section: State-of-the-art Progress On Redox-additive Electrolytementioning

confidence: 99%

See 1 more Smart Citation

Redox-Additives in Aqueous, Non-Aqueous, and All-Solid-State Electrolytes for Carbon-Based Supercapacitor: A Mini-Review

et al. 2021

View full text Add to dashboard Cite

Herein, we deliver a brief discussion on the classification, state-of-the-art progress, challenges, and perceptions of the redox-additive materials in the aqueous, nonaqueous, and solid-state electrolytes for high-performance supercapacitors. For the performance of electrochemical capacitors, electrolytes are found to be influential components, governing vital parameters including the voltage window, power, and energy density. To improve the electrolyte performance, the inclusion of redox additive species is counted as the best method where the redox reaction that occurs at the electrode−electrolyte interface mainly contributes to the overall enhancement of the device in terms of energy and power as well as stability. The method of preparation and utilization is quite simple, safe, and cost-effective in comparison with some active electrode materials. Hence, the chemistry behind redox additives seems to be of special interest, and the identification of novel redox additives is believed to be a hotspot in the area of supercapacitor electrode materials. In this, we focus on the interaction between carbon-based electrode materials in different redox-additive electrolytes and their challenges and propose different perspectives that concisely intend to enhance energy density without compromising other merits that are inherent.

show abstract

“…The effect of PPD as a redox organic electrolyte was confirmed by Yun and co-workers . In the study, microporous carbon was produced from the KOH activation of charcoal waste.…”

Section: State-of-the-art Progress On Redox-additive Electrolytementioning

confidence: 99%

“…25 The effect of PPD as a redox organic electrolyte was confirmed by Yun and co-workers. 26 In the study, microporous carbon was produced from the KOH activation of charcoal waste. This synthesis route leads to the production of various redox-addtivie heteroatoms on their surface.…”

Section: Introductionmentioning

confidence: 99%

Redox-Additives in Aqueous, Non-Aqueous, and All-Solid-State Electrolytes for Carbon-Based Supercapacitor: A Mini-Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Moreover, carbon derivatives such as graphene, carbon fibers, carbon nanotubes, and activated carbon have also been considered as active electrode materials for high-performance SCs. Among them, porous carbon offers better intrinsic electrochemical properties than those of other carbon allotropes [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Biopolymer phytagel-derived porous nanocarbon as efficient electrode material for high-performance symmetric solid-state supercapacitors

Karuppasamy

Prasanna

Ilango

et al. 2019

Journal of Industrial and Engineering Chemistry

View full text Add to dashboard Cite

General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Formation of High Surface Area Hierarchical Porous Carbon Via a Novel Two Step Activation Process for Fast Supercapacitors

Xing

et al. 2020

ChemistrySelect

View full text Add to dashboard Cite

Produce of hierarchical porous carbon (HPC) materials that process hierarchical structure, high specific surface area and large pore volume is still a global challenge. Here we develop a novel sample two‐step activation method, which introduces Ca(OH)2 at the first step to produce the meso‐macro porous structure and KOH at the second step to create micropores, to synthesize hierarchical porous carbon using tannin extract as processor. Benefited from this method, the synthesized HPC exhibits the specific surface area of 1996.9 cm2 g−1, pore volume of 1.09 cm3 g−1, and hierarchical porous structure with micro‐meso‐macro pores. The prepared HPC with well‐developed mesopores and micropores can provides ideal channels for ion diffusion with low migration resistances, enabling an excellent power density and cycling stability for supercapacitors, and it exhibits the specific capacitance of 248 F g−1 at 5 A g−1 and maintained at 228 F g−1 at 20 A g−1. Tannin extract is cheap, easy to obtain and environmentally friendly, combined with the excellent electrochemical performances and the well‐developed two‐step method, provides a new idea for the preparation of HPC for high performance supercapacitor.

show abstract

Microporous waste charcoals for redox-mediated supercapacitors

Cited by 8 publications

References 23 publications

Redox-Additives in Aqueous, Non-Aqueous, and All-Solid-State Electrolytes for Carbon-Based Supercapacitor: A Mini-Review

Redox-Additives in Aqueous, Non-Aqueous, and All-Solid-State Electrolytes for Carbon-Based Supercapacitor: A Mini-Review

Biopolymer phytagel-derived porous nanocarbon as efficient electrode material for high-performance symmetric solid-state supercapacitors

Formation of High Surface Area Hierarchical Porous Carbon Via a Novel Two Step Activation Process for Fast Supercapacitors

Contact Info

Product

Resources

About