A green potassium citrate activation strategy via one-step synthesis of 3D porous carbon for capacitive deionization

Miao, Luwei; Wang, Zhen; Gao, Ming; Peng, Jie; Chen, Yi; Chen, Fangfang; Chen, Wenqing; Ao, Tianqi

doi:10.1016/j.seppur.2024.127510

Separation and Purification Technology

2024

DOI: 10.1016/j.seppur.2024.127510

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A green potassium citrate activation strategy via one-step synthesis of 3D porous carbon for capacitive deionization

Luwei Miao,

Zhen Wang,

Ming Gao

et al.

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Cited by 5 publications

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Porous Carbon Electrode from Starch Soluble for Realizing High‐Performance Supercapacitor

Zhang,

Jiao,

Geng

et al. 2024

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Organic potassium salts are the promising green activators for synthesizing porous carbon materials for energy storage. Herein, we report the synthesis of hierarchical porous carbon material derived from the mixture of soluble starch and ethylenediaminetetraacetic acid dipotassium salt dihydrate (EDTA‐2K) via carbonization and activation strategy. The sample is used as supercapacitors electrode, which exhibits superior mass specific capacitance (307.3 F g−1 at 1 A g−1), good rate performance (255.0 F g−1 at 10 A g−1), and excellent stability (retaining 83 % after 15000 cycles). This enhanced electrode performance is mainly due to the high specific surface area, the heteroatom co‐doping providing pseudo‐capacitance and the improved electronic conductivity. In addition, the asymmetric supercapacitor device shows a high energy density of 15 Wh kg−1 at the power density of 800 W kg−1 and capacitance retention of 90 % after 12000 cycles.

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Porous Carbon Electrode from Starch Soluble for Realizing High‐Performance Supercapacitor

Zhang,

Jiao,

Geng

et al. 2024

ChemistrySelect

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Work-function-prompted interfacial charge kinetics in hierarchical heterojunction flexible electrode for efficient capacitive deionization

Gao,

Xiao,

Miao

et al. 2024

Separation and Purification Technology

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Improvement in capacitive and Zn-storage performance of asphalt-based N, O, and Mo-doped porous carbon by Mo-catalytic oxidative modification

Li,

Yan,

et al. 2025

Separation and Purification Technology

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A green potassium citrate activation strategy via one-step synthesis of 3D porous carbon for capacitive deionization

Cited by 5 publications

References 58 publications

Porous Carbon Electrode from Starch Soluble for Realizing High‐Performance Supercapacitor

Porous Carbon Electrode from Starch Soluble for Realizing High‐Performance Supercapacitor

Work-function-prompted interfacial charge kinetics in hierarchical heterojunction flexible electrode for efficient capacitive deionization

Improvement in capacitive and Zn-storage performance of asphalt-based N, O, and Mo-doped porous carbon by Mo-catalytic oxidative modification

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