Preparation of high performance supercapacitors with nitrogen and oxygen self-doped porous carbon derived from wintersweet-fruit-shell

Wu, Wenjie; Zheng, Hong; Zhang, Yurun; Wang, Qin; Huang, Wenjing; Jing, Xiang; Yang, Xian; Lu, Wei; Zhang, Zhiqiang; Wang, Shuya

doi:10.1016/j.jpcs.2023.111274

Cited by 8 publications

(3 citation statements)

References 47 publications

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“…To improve the conductivity and pseudo-capacitance of materials, the remaining heteroatoms are doped in situ . 9 For instance, Wu et al 18 used winter sweet-fruit-shell as the precursor of N- and O-doped carbon to prepare high-performing supercapacitors, and obtained a C s of 433 F g −1 at 0.5 A g −1 . Therefore, the N, O co-doped porous carbon material is an important means to prepare high-performance supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Two biomass material-derived self-doped (N/O) porous carbons from waste coriander and lilac with high specific surface areas and high capacitance for supercapacitors

Ma,

Wang,

Chen

et al. 2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Two biomass material-derived self-doped (N/O) porous carbons from waste coriander and lilac with high specific surface areas and high capacitance for supercapacitors

Ma,

Wang,

Chen

et al. 2024

New J. Chem.

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“…In the past few years, the conflict between environmental concerns and energy accessibility has made people keen to promote environmental awareness and find new renewable energy sources. 1 Electricity is a form of renewable energy that is considered favorable because it has a low environmental impact. Supercapacitors (SCs) are considered to be eco-friendly and emission-free electrical energy storage devices (EESDs) that have gained much attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrahigh capacitive performance of O and Mg self‐dual‐doped activated carbon from Ananas comosus leaf 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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Discarded Perseaamericana leaf-derived natural O, Mg, and Ca self-doped activated carbon and its applications as electrode materials for high-performance symmetric supercapacitors

Armynah,

Nairanti,

Agustino

et al. 2024

Diamond and Related Materials

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Preparation of high performance supercapacitors with nitrogen and oxygen self-doped porous carbon derived from wintersweet-fruit-shell

Cited by 8 publications

References 47 publications

Two biomass material-derived self-doped (N/O) porous carbons from waste coriander and lilac with high specific surface areas and high capacitance for supercapacitors

Two biomass material-derived self-doped (N/O) porous carbons from waste coriander and lilac with high specific surface areas and high capacitance for supercapacitors

Ultrahigh capacitive performance of O and Mg self‐dual‐doped activated carbon from Ananas comosus leaf fiber using a redox additive‐based electrolyte

Discarded Perseaamericana leaf-derived natural O, Mg, and Ca self-doped activated carbon and its applications as electrode materials for high-performance symmetric supercapacitors

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