Oxygen self-doped hierarchical porous carbons derived from coal liquefaction residue for high-performance supercapacitors in organic and ionic liquid-based electrolytes

Wang, Xianglong; Liu, Baolin; Wang, Shiqiang; Xie, Hua; Zha, Ya; Huang, Xueli; Santos, Diogo M.F.; Li, Yizhao

doi:10.1016/j.colsurfa.2023.131552

Cited by 5 publications

(2 citation statements)

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“…The doping oxygen species in carbon provide a quick electron transfer channel and improved adsorption to the electrolyte. The specific surface area of OHPCs rose with increasing activation temperature, going from 2007 m 2 /g of OHPC-600 to 2691 m 2 /g of OHPC-700, ultimately reaching 3102 m 2 /g of OHPC-800 [81].…”

Section: Preparation Of Carbon Materialsmentioning

confidence: 95%

“…With a power density of 10,000 W/kg, this device yielded an impressive energy density of 35.2 Wh/kg and 46.5 Wh/kg when the aqueous electrolyte was substituted with an organic or ionic liquid. At 5 4 A/g, the OHPC-800 demonstrated the maximum specific capacitance of 160 F/g [81]. The optimal ideal electric double-layer capacitive performance was achieved by thermally treating synthesized porous carbon from coal-based green needle coke at 750 • C, which is superior to those treated at other temperatures.…”

Section: Performance Of Carbon Materials As Supercapacitor Electrodesmentioning

confidence: 99%

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Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Ferdous,

Shah,

Shah

et al. 2024

Molecules

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This comprehensive review addresses the need for sustainable and efficient energy storage technologies against escalating global energy demand and environmental concerns. It explores the innovative utilization of waste materials from oil refineries and coal processing industries as precursors for carbon-based electrodes in next-generation energy storage systems, including batteries and supercapacitors. These waste-derived carbon materials, such as semi-coke, coal gasification fine ash, coal tar pitch, petroleum coke, and petroleum vacuum residue, offer a promising alternative to conventional electrode materials. They present an optimal balance of high carbon content and enhanced electrochemical properties while promoting environmental sustainability through effectively repurposing waste materials from coal and hydrocarbon industries. This review systematically examines recent advancements in fabricating and applying waste-derived carbon-based electrodes. It delves into the methodologies for converting industrial by-products into high-quality carbon electrodes, with a particular emphasis on carbonization and activation processes tailored to enhance the electrochemical performance of the derived materials. Key findings indicate that while higher carbonization temperatures may impede the development of a porous structure, using KOH as an activating agent has proven effective in developing mesoporous structures conducive to ion transport and storage. Moreover, incorporating heteroatom doping (with elements such as sulfur, potassium, and nitrogen) has shown promise in enhancing surface interactions and facilitating the diffusion process through increased availability of active sites, thereby demonstrating the potential for improved storage capabilities. The electrochemical performance of these waste-derived carbon materials is evaluated across various configurations and electrolytes. Challenges and future directions are identified, highlighting the need for a deeper understanding of the microstructural characteristics that influence electrochemical performance and advocating for interdisciplinary research to achieve precise control over material properties. This review contributes to advancing electrode material technology and promotes environmental sustainability by repurposing industrial waste into valuable resources for energy storage. It underscores the potential of waste-derived carbon materials in sustainably meeting global energy storage demands.

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Section: Preparation Of Carbon Materialsmentioning

confidence: 95%

Section: Performance Of Carbon Materials As Supercapacitor Electrodesmentioning

confidence: 99%

Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Ferdous,

Shah,

Shah

et al. 2024

Molecules

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Ultrahigh capacitive performance of O andMgself‐dual‐doped activated carbon fromAnanas comosusleaf fiber using a redox additive‐based electrolyte

Awitdrus,

Agustino,

Farma

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUNDThe capacitive behavior of a supercapacitor (SC) based on activated carbon derived from biomass is enhanced when a halogenated iodide (in this case, iodide, Iˉ) is added to the acidic aqueous electrolyte. In this work, we prepared ultrahigh capacitive performance of O and Mg self‐dual‐doped activated carbon (AC) from Ananas comosus leaf fiber (ACLF) via chemical activation at high temperature, followed by activation under the protection of CO2 to produce commercially feasible electrodes for commercial‐scale SC devices. The prepared ACLFs were characterized through SEM–EDX, XRD, adsorption/desorption of N2. Moreover, in a 2‐electrode setup, the capacitive activity of the prepared ACLFs were evaluated using cyclic voltammetry and galvanostatic charge/discharge techniques in a redox additive electrolyte (1 M H2SO4 + 0.05 M KI).RESULTThe pairs 3Iˉ/I3ˉ, 2Iˉ/I2, 2I3ˉ/3I2, and I2/IO3ˉ generate reduction–oxidation (redox) peaks in the CV curves and a significant Faradaic plateau in the GCD curves. The ACLF samples delivered an outstanding gravimetric capacitance and energy density as high as 581 F g−1 and 80.69 Wh kg−1 at a power density of 346.14 W kg−1, respectively.CONCLUSIONThe enhanced capacitive activity is a result of the Faradaic pseudocapacitance associated with the redox‐active ions present in the acidic electrolyte solution. This work describes a facile and economical approach to acquiring a potential candidate of electrode materials for SC devices with exceptional performance, achieved via a redox additive‐based electrolyte system. © 2023 Society of Chemical Industry (SCI).

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Green one-pot synthesis of spongy hierarchical porous carbon with interconnected channels towards high-performance supercapacitors

Sheng,

Li,

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Oxygen self-doped hierarchical porous carbons derived from coal liquefaction residue for high-performance supercapacitors in organic and ionic liquid-based electrolytes

Cited by 5 publications

References 46 publications

Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Ultrahigh capacitive performance of O andMgself‐dual‐doped activated carbon fromAnanas comosusleaf fiber using a redox additive‐based electrolyte

Green one-pot synthesis of spongy hierarchical porous carbon with interconnected channels towards high-performance supercapacitors

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