Premixed precursors to tailor porosity in porous carbons for improved capacitive properties: Towards predicting the texture properties of carbonaceous matter

Wang, Liangcai; Xie, Linen; Qin, Hengfei; Ma, Hongwen; Wang, Huilin

doi:10.1016/j.cej.2022.139691

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2022.139691

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Premixed precursors to tailor porosity in porous carbons for improved capacitive properties: Towards predicting the texture properties of carbonaceous matter

Liangcai Wang

Linen Xie²,

Hengfei Qin³

et al.

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Cited by 10 publications

References 91 publications

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Inspired by the Seeking Knowledge Strategy for Analects of Confucius to Screen Highly Electrochemically Active Porous Carbon: The Critical Source of Electroactive Sites

Wang,

Ma,

Chen

et al. 2024

Small Structures

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In this work, the forestry wastes are converted into a series of porous carbons using H3PO4 activation. These porous carbons feature a large specific surface area (1045.20 m2 g−1) and porosity that combines micro‐, meso‐, and macropores in various amounts depending on the fuel properties recorded for precursors used. Importantly, the C content recorded for forestry waste is one of the crucial factors in defining the specific surface area of the derived porous carbons. In addition, the total capacitance of the pine‐sawdust‐based porous carbon (PS‐C) sample is the highest, such as 220.55 F g−1 upon 5 mV s−1. Notably, the electrical double‐layer capacitance recorded for the samples remains essentially constant with increasing scan rates, such as ≈91.50 F g−1 for the olive‐shell‐based porous carbon, ≈123.70 F g−1 for PS‐C, and ≈105.66 F g−1 for the pine‐needle‐based porous carbon. Encouragingly, the pore‐associated sp3 site holds significant roles in the electrochemical application of the porous carbons. More importantly, the O/C value recorded for the precursor can be employed as a universal predictor of electrochemically active sites produced in porous carbons. In the findings, crucial insights are exhibited into the optimized fabrication of porous carbon with target electrochemically active sites for other applications such as catalysis.

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Inspired by the Seeking Knowledge Strategy for Analects of Confucius to Screen Highly Electrochemically Active Porous Carbon: The Critical Source of Electroactive Sites

Wang,

Ma,

Chen

et al. 2024

Small Structures

Self Cite

View full text Add to dashboard Cite

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Urea-boosted gas-exfoliation synthesis of lignin-derived porous carbon for zinc ion hybrid supercapacitors

Xue,

Liu,

Wang

et al. 2024

Chemical Engineering Journal

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Preparation of hierarchical porous carbon from corncob hydrochar by KCl enhancing K2CO3 activation for electrode material of supercapacitor

Zhang,

Chen,

Song

et al. 2025

Chemical Engineering Journal

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Premixed precursors to tailor porosity in porous carbons for improved capacitive properties: Towards predicting the texture properties of carbonaceous matter

Cited by 10 publications

References 91 publications

Inspired by the Seeking Knowledge Strategy for Analects of Confucius to Screen Highly Electrochemically Active Porous Carbon: The Critical Source of Electroactive Sites

Inspired by the Seeking Knowledge Strategy for Analects of Confucius to Screen Highly Electrochemically Active Porous Carbon: The Critical Source of Electroactive Sites

Urea-boosted gas-exfoliation synthesis of lignin-derived porous carbon for zinc ion hybrid supercapacitors

Preparation of hierarchical porous carbon from corncob hydrochar by KCl enhancing K2CO3 activation for electrode material of supercapacitor

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