<i>Borassus flabellifer</i>Fruit Flesh Derived Hierarchical Porous Partly Graphitic Carbon as a Sustainable Electrode for Supercapacitors

Saha, Shalakha; Potphode, Darshna; Sharma, Chandra Shekhar

doi:10.1021/acs.energyfuels.1c03235

Cited by 15 publications

(3 citation statements)

References 88 publications

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“…Furthermore, SC‐TENERA3, CS‐TENERA7 and CS‐TENERA9 showed gravimetric energy densities of 15.48, 7.72 and 5.85 Wh kg −1 . The gravimetric energy density obtained was higher than in studies on other supercapacitors in symmetrical device systems such as raw cork, 68 Borassus flabellifer fruit flesh, 69 banana bract, 70 bacterial‐cellulose 71 and European deciduous trees 72 . Figure 7(a) shows the Ragone plot for CS‐TENERA‐x in the volumetric dimension.…”

Section: Resultsmentioning

confidence: 82%

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: 82%

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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“…At 1000-1350 °C, the d002 of ACFCs is greater than the d002 of graphite (0.3354 nm) [52]. ACFC carbonization is more complicated than that of other carbon materials due to the high cellulose liquefaction complexity [53]. With an increase in the CFB/KOH ratio, Lc increases while La decreases, indicating cigarette filter carbon (CFC) graphitization degree (Lc/d002).…”

Section: Resultsmentioning

confidence: 99%

Cigarette filter butts-derived activated carbon with free binder electrode design for solid-state supercapacitor application

Hamzah,

Taer,

Apriwandi

et al. 2023

CST

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The aim of this research is to formulate activated carbon monolith from hazardous waste of cigarette filter butts (CFB) for electrode material monolith design in solid-state supercapacitor application. Potassium hydroxide (KOH) was selected for activation. The ratio of CFB to KOH varied in terms of weight between 1:2 and 1:4, thereby obtaining activated cigarette filter carbon (ACFC). The carbon that has been obtained is designed to be solidly in the form of an additive-free monolith. Monolith-activated carbon is physically characterized to examine thermal decomposition profiles (pre-carbonized), structure, composition, morphology, surface area adsorption, and electrochemical measurements. The optimum precursor was marked with high wettability with self-O-doped of 5.44%.in carbon content of 94.56%. Activated carbon electrodes prepared from ACFCs showed an optimum specific capacitance of ~87.17 F g-1, which is a more ecologically responsible method of producing supercapacitors.

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“…49 The peaks at 2919 cm −1 can be assigned to the C-H stretching frequencies of methyl and the symmetric and asymmetric vibrations of the aromatic methoxy groups. 50 The strong transmittance band around 1095 cm −1 denotes the hemicellulose-based pentose and hexose vibration. 51…”

Section: Fourier Transform Infrared Analysis Of Biocharmentioning

confidence: 99%

Sustainable high-efficiency removal of cationic and anionic dyes using new super adsorbent biochar: performance, isotherm, kinetic and thermodynamic evaluation

Mosaffa,

Banerjee,

Ghafuri

2023

Environ. Sci.: Water Res. Technol.

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Borassus flabelliferFruit Flesh Derived Hierarchical Porous Partly Graphitic Carbon as a Sustainable Electrode for Supercapacitors

Cited by 15 publications

References 88 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

Cigarette filter butts-derived activated carbon with free binder electrode design for solid-state supercapacitor application

Sustainable high-efficiency removal of cationic and anionic dyes using new super adsorbent biochar: performance, isotherm, kinetic and thermodynamic evaluation

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