Boosting gravimetric and volumetric energy density of supercapacitors by 3D pomegranate-like porous carbon structure design

Gao, Hongquan; Zhang, Dong; Zhou, Haitao; Wu, Jianchun; Xu, Guijiang; Huang, Zengliang; Liu, Menghao; Yang, Jianhong; Chen, De

doi:10.1016/j.apsusc.2020.147613

Cited by 24 publications

(7 citation statements)

References 59 publications

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“…It evident that all of the precursors that have been prepared show strong broad peaks at 22°–24° and weak wide peaks at 42°–44°. These two broad peaks correlates with the [002] and [100] scattering fields 24,53 . Strictly speaking, these features confirm the presence of a disturbed C structure with attenuated graphite.…”

Section: Resultsmentioning

confidence: 55%

“…These two broad peaks correlates with the [002] and [100] scattering fields. 24,53 Strictly speaking, these features confirm the presence of a disturbed C structure with attenuated graphite. The damaged C structure is characterized by the presence of many holes which initiate the pore framework on the precursor surface.…”

Section: Resultsmentioning

confidence: 66%

“…Very few studies have examined C‐based biomass materials with high volumetric performance, particularly those whose abundant pore structure degrades their particle density. Gao and co‐workers analyzed the volumetric performance of C‐derived biowaste materials 24 . The studies combined hierarchical pore and heteroatom doping to improve the performance of volumetric capacitors.…”

Section: Introductionmentioning

confidence: 99%

“…Gao and co-workers analyzed the volumetric performance of C-derived biowaste materials. 24 The studies combined hierarchical pore and heteroatom doping to improve the performance of volumetric capacitors. However, their volumetric energy density is only ≈11 Wh L −1 despite their gravimetric capacitance of ≤398 F g −1 .…”

Section: Introductionmentioning

confidence: 99%

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High well‐matched energy gravimetric–volumetric symmetric super‐capacitor derived from hollow paper stack‐like biomass‐based functional carbon

Julnaidi

Amri

Saputra

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUND: Two-and three-dimensional porous activated carbon (C)-based symmetrical supercapacitors show great potential for extraordinary gravimetric performance as sustainable energy storage. However, the applications of portable and microdimensional supercapacitors are limited by their low volumetric performance stemming from reduced density resulting from increased porosity and high fabrication costs. This study aimed to demonstrate the high gravimetric-volumetric performance of symmetrical supercapacitors from biomass-based porous carbon-sources materials through an environmentally benign development method. Unique porous C sourced from TENERA-type palm oil stick waste was prepared using potassium hydroxide (KOH) as an activating agent. The electrode set resembled a solid plate with an encapsulation density of ≈1.40 g cm −3 .RESULT: The study used superior gravimetric-volumetric electrode materials, including an adjusted specific surface area of 934 m 2 g −1 , single-doped optimization, and a hollow paper-stack-like morphological structure with a high C content of 91%. The results showed that the best electrode in the 1 mol L −1 H 2 SO 4 electrolytes exhibited a high gravimetric capacitance of 233 F g −1 and an extraordinary volumetric capacitance of 326 F cm −3 at 1 A g −1 . Furthermore, their coulombic efficiency was ≈99.1% at 10 A g −1 . The symmetrical electrode device performed a high gravimetric-volumetric energy density of 19.03 Wh kg −1 and 26.6 Wh L −1 at a maximum output power density of 1.7 kW kg −1 and 1.9 kW L −1 , respectively. CONCLUSION: These results indicate that the applied method development and the C-biomass-based electrode material design could achieve a high, well-matched gravimetric-volumetric performance balance in symmetric supercapacitor devices.

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Section: Resultsmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High well‐matched energy gravimetric–volumetric symmetric super‐capacitor derived from hollow paper stack‐like biomass‐based functional carbon

Julnaidi

Amri

Saputra

et al. 2023

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…Controlled morphologies, such as sycamore fruit-like CoMoO 4 , 145 pomegranate-like PPy/PAM-derived porous carbon, 146 paper mulberry or Broussonetia payrifera fruit-like SnO 2 –C particles, 147 rambutan-like CeO 2 –CuO hollow microspheres, 148 core–shell carbon sphere@nickel oxide composites 149 and double-carbon-shell passion fruit-structured porous carbon microspheres, 142 have shown multidimensional hollow and core–shell structures capable of producing fruit-like structures. These inimitable structures are due to a unique growth mechanism under a contained environment.…”

Section: Nature-inspired Structures and Their Synthesis Structural Fo...mentioning

confidence: 99%

Plant- and fungi-inspired hierarchical structures as electrode materials: a review

Hussain

Lamiel

Javed

et al. 2022

Mater. Chem. Front.

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Porous Carbon Materials for Supercapacitor Applications

Mandal

Chattopadhyay

Jain

et al. 2023

Materials Horizons: From Nature to Nanomaterials

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Boosting gravimetric and volumetric energy density of supercapacitors by 3D pomegranate-like porous carbon structure design

Cited by 24 publications

References 59 publications

High well‐matched energy gravimetric–volumetric symmetric super‐capacitor derived from hollow paper stack‐like biomass‐based functional carbon

High well‐matched energy gravimetric–volumetric symmetric super‐capacitor derived from hollow paper stack‐like biomass‐based functional carbon

Plant- and fungi-inspired hierarchical structures as electrode materials: a review

Porous Carbon Materials for Supercapacitor Applications

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