Biomass-derived nitrogen-rich porous carbon composite for supercapacitor application

Iqbal, Sheraz; Rasheed, Tahir; Bilal, Muhammad; Shah, Khizar Hussain; Sherazi, Tauqir A.

doi:10.1007/s10854-022-08399-z

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…Hybridization of biomass-derived carbon with redox-active materials can enhance capacitance through the combined effects of electrical double-layer capacitance (EDLC) and pseudocapacitance [19][20][21]. Numerous pseudocapacitance materials including transition metal oxides/sulfides [22][23][24][25], conducting polymers [26,27], and transition metal MXenes [28][29][30] have been extensively investigated to enhance the electrochemical capacitance of carbon materials via hybridization.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Alwi,

Singh,

Choudhury

et al. 2024

Molecules

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Sugar industries generate substantial quantities of waste biomass after the extraction of sugar water from sugarcane stems, while biomass-derived porous carbon has currently received huge research attention for its sustainable application in energy storage systems. Hence, we have investigated waste sugarcane bagasse (WSB) as a cheap and potential source of porous carbon for supercapacitors. The electrochemical capacitive performance of WSB-derived carbon was further enhanced through hybridization with silicon dioxide (SiO2) as a cost-effective pseudocapacitance material. Porous WSB-C/SiO2 nanocomposites were prepared via the in situ pyrolysis of tetraethyl orthosilicate (TEOS)-modified WSB biomass. The morphological analysis confirms the pyrolytic growth of SiO2 nanospheres on WSB-C. The electrochemical performance of WSB-C/SiO2 nanocomposites was optimized by varying the SiO2 content, using two different electrolytes. The capacitance of activated WSB-C was remarkably enhanced upon hybridization with SiO2, while the nanocomposite electrode demonstrated superior specific capacitance in 6 M KOH electrolyte compared to neutral Na2SO4 electrolyte. A maximum specific capacitance of 362.3 F/g at 0.25 A/g was achieved for the WSB-C/SiO2 105 nanocomposite. The capacitance retention was slightly lower in nanocomposite electrodes (91.7–86.9%) than in pure WSB-C (97.4%) but still satisfactory. A symmetric WSB-C/SiO2 105//WSB-C/SiO2 105 supercapacitor was fabricated and achieved an energy density of 50.3 Wh kg−1 at a power density of 250 W kg−1, which is substantially higher than the WSB-C//WSB-C supercapacitor (22.1 Wh kg−1).

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Section: Introductionmentioning

confidence: 99%

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Alwi,

Singh,

Choudhury

et al. 2024

Molecules

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“…N atoms in pyridinic N form H bonds with the dye molecules, further enhancing adsorption. Moreover, especially pyridinic N and pyrrolic N are unlike graphitic N-chemically active and reduce the inertness of carbon by rearranging spin and charge densities producing more active sites. , N-enriched carbon has been deployed for other uses including capturing CO 2 , advanced oxygen electrocatalysis, supercapacitor applications, etc., in addition to adsorbing dyes.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and Thermodynamics Study of Methylene Blue Adsorption to Sucrose- and Urea-Derived Nitrogen-Enriched, Hierarchically Porous Carbon Activated by KOH and H₃PO₄

Liyanaarachchi

Thambiliyagodage

Lokuge³

et al. 2023

ACS Omega

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Hierarchically porous nitrogen-enriched carbon materials synthesized by polymerization of sucrose and urea (SU) were activated by KOH and H 3 PO 4 (SU-KOH and SU-H 3 PO 4 , respectively). Characterization was undertaken and the synthesized materials were tested for their ability to adsorb methylene blue (MB). Scanning electron microscopic images along with the Brunauer–Emmett–Teller (BET) surface area analysis revealed the presence of a hierarchically porous system. X-ray photoelectron spectroscopy (XPS) confirms the surface oxidation of SU upon activation with KOH and H 3 PO 4 . The best conditions for removing dyes utilizing both activated adsorbents were determined by varying the pH, contact time, adsorbent dosage, and dye concentration. Adsorption kinetics were evaluated, and the adsorption of MB followed second-order kinetics, suggesting the chemisorption of MB to both SU-KOH and SU-H 3 PO 4 . Times taken to reach the equilibrium by SU-KOH and SU-H 3 PO 4 were 180 and 30 min, respectively. The adsorption isotherm data were fitted to the Langmuir, Freundlich, Temkin, and Dubinin models. Data were best described by the Temkin isotherm model for SU-KOH and the Freundlich isotherm model for SU-H 3 PO 4 . Thermodynamics of the adsorption of MB to the adsorbent was determined by varying the temperature in the range of 25–55 °C. Adsorption of MB increased with increasing temperature, suggesting that the adsorption process is endothermic. The highest adsorption capacities of SU-KOH and SU-H 3 PO 4 (1268 and 897 mg g –1 , respectively) were obtained at 55 °C. Synthesized adsorbents were effective in removing MB for five cycles with some loss in activity. The results of this study show that SU activated by KOH and H 3 PO 4 are environmentally benign, favorable, and effective adsorbents for MB adsorption.

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Recent advancement in the electrochemical performance of electrochemical capacitors based on biomass-derived porous carbon: A review

Ngidi,

Koekemoer,

Ndlela

2024

Journal of Energy Storage

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Biomass-derived nitrogen-rich porous carbon composite for supercapacitor application

Cited by 6 publications

References 24 publications

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Kinetics and Thermodynamics Study of Methylene Blue Adsorption to Sucrose- and Urea-Derived Nitrogen-Enriched, Hierarchically Porous Carbon Activated by KOH and H₃PO₄

Recent advancement in the electrochemical performance of electrochemical capacitors based on biomass-derived porous carbon: A review

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Biomass-derived nitrogen-rich porous carbon composite for supercapacitor application

Cited by 6 publications

References 24 publications

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres

Kinetics and Thermodynamics Study of Methylene Blue Adsorption to Sucrose- and Urea-Derived Nitrogen-Enriched, Hierarchically Porous Carbon Activated by KOH and H3PO4

Recent advancement in the electrochemical performance of electrochemical capacitors based on biomass-derived porous carbon: A review

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Kinetics and Thermodynamics Study of Methylene Blue Adsorption to Sucrose- and Urea-Derived Nitrogen-Enriched, Hierarchically Porous Carbon Activated by KOH and H₃PO₄