Carbon nanofibrous electrode material from electrospinning of chlorella (microalgae) with polyacrylonitrile for practical
            <scp>high‐performance</scp>
            supercapacitor

Hasan, Md Faruque; Mantripragada, Shobha; Gbewonyo, Spero; Xiu, Shuangning; Shahbazi, Abolghasem; Zhang, Lifeng

doi:10.1002/er.8590

Cited by 12 publications

(7 citation statements)

References 62 publications

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“…The increase of porosity is beneficial to increase its specific surface area, promote electrolytic solution infiltration and carrier transmission, improve the capacitance, as well as rate performance of watermelon peel carbon material, and enhance its electrical conductivity [ 38 ]. SEM images show a relatively collapsed carbon matrix with a small amount of irregular broken surface, which may be caused by oxidation in the Muffle furnace [ 39 ]. Under SEM, the manufactured MWC looked similar to the raw material, indicating that sulfur was well incorporated in it.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Nitrogen and Phosphorus Doped Porous Carbon from Watermelon Peel as Supercapacitor Electrode Material

Yang

Wang

et al. 2023

Micromachines

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The use of green and sustainable biomass-derived compounds to obtain excellent electrochemical properties is important to address growing environmental and energy issues. In this paper, cheap and abundant watermelon peel was used as a raw material to successfully synthesize nitrogen-phosphorus double-doped bio-based porous carbon by a one-step carbonization method and explore it as a renewable carbon source for low-cost energy storage devices. The supercapacitor electrode exhibited a high specific capacity of 135.2 F/g at a current density of 1 A/g in a three-electrode system. A variety of characterization methods and electrochemical tests indicate that porous carbon prepared by this simple method has great potential as electrode materials for supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Preparation of Nitrogen and Phosphorus Doped Porous Carbon from Watermelon Peel as Supercapacitor Electrode Material

Yang

Wang

et al. 2023

Micromachines

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“…Chemical activation is a well-known efficient way to increase specific surface area of carbon materials [33]. To further explore the maximum potential of the biochar-integrated carbon nanofibrous aerogel electrode materials for supercapacitor application, we performed carbon activation to ENFA, ENFA-B, and ENFA-FB materials using KOH, characterized the activated aerogels (ENFAa, ENFA-Ba, and ENFA-FBa), and evaluated their electrochemical performance.…”

Section: Electrode Materials From Activated Aerogelsmentioning

confidence: 99%

Meso-Microporous Carbon Nanofibrous Aerogel Electrode Material with Fluorine-Treated Wood Biochar for High-Performance Supercapacitor

Hasan,

Asare,

Mantripragada

et al. 2024

Gels

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A supercapacitor is an electrical energy storage system with high power output. With worldwide awareness of sustainable development, developing cost-effective, environmentally friendly, and high-performance supercapacitors is an important research direction. The use of sustainable components like wood biochar in the electrode materials for supercapacitor uses holds great promise for sustainable supercapacitor development. In this study, we demonstrated a facile and powerful approach to prepare meso-microporous carbon electrode materials for sustainable and high-performance supercapacitor development by electrospinning polyacrylonitrile (PAN) with F-treated biochar and subsequent aerogel construction followed by stabilization, carbonization, and carbon activation. The resultant carbon nanofibrous aerogel electrode material (ENFA-FBa) exhibited exceptional specific capacitance, attributing to enormously increased micropore and mesopore volumes, much more activated sites to charge storage, and significantly greater electrochemical interaction with electrolyte. This electrode material achieved a specific capacitance of 407 F/g at current density of 0.5 A/g in 1 M H2SO4 electrolyte, which outperformed the state-of-the-art specific capacitance of biochar-containing electrospun carbon nanofibrous aerogel electrode materials (<300 F/g). A symmetric two-electrode cell with ENFA-FBa as electrode material showed an energy density of 11.2 Wh/kg at 125 W/kg power density. Even after 10,000 cycles of charging-discharging at current density of 10 A/g, the device maintained a consistent coulombic efficiency of 53.5% and an outstanding capacitance retention of 91%. Our research pointed out a promising direction to develop sustainable electrode materials for future high-performance supercapacitors.

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“…In this research, for the first time, we seek to specifically explore the potential of ADC as an electrode material for supercapacitor application. With the intention to enhance the electrochemical performance of the obtained ADC, we further performed carbon activation and doping studies, which are popular ways to improve the electrochemical performance of carbon electrode materials and has been proved in our previous research [18,19]. For the carbon activation study, we investigated H 2 SO 4 , H 3 PO 4 , HNO 3 , and KOH according to their different activation mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Algae Derived Carbon from Hydrothermal Liquefaction as Sustainable Carbon Electrode Material for Supercapacitor

Asare,

Mali,

Hasan

et al. 2024

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With the worldwide awareness of sustainability, biomass-derived carbon electrode materials for supercapacitors have attracted growing attention. In this research, for the first time, we explored the feasibility of making use of the carbon byproduct from hydrothermal liquefaction (HTL) of microalgae, termed herein as algae-derived carbon (ADC), to prepare sustainable carbon electrode materials for high-performance supercapacitor development. Specifically, we investigated carbon activation with a variety of activating reagents as well as N- and Fe-doping of the obtained ADC with the intention to enhance its electrochemical performance. We characterized the structure of the activated and doped ADCs using scanning electron microscope (SEM), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and BET surface area and pore analysis, and correlated the ADCs’ structure with their electrochemical performance as evaluated using cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), impedance, and cycle stability through an assembled symmetric two-electrode cell with 1 M H2SO4 as electrolyte. It was found that the ADC that is activated using KOH (KOH-ADC) showed the best electrochemical performance, and its specific capacitance was 14.1-fold larger with respect to that of the raw ADC and reached 234.5 F/g in the GCD test at a current density of 0.5 A/g. The KOH-ADC also demonstrated excellent capacitance retention (97% after 10,000 cycles at a high current density of 10 A/g) for stable long-term operations. This research pointed out a promising direction to develop sustainable electrode materials for supercapacitors from the carbon byproduct produced after HTL processing of algae.

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Carbon nanofibrous electrode material from electrospinning of chlorella (microalgae) with polyacrylonitrile for practical high‐performance supercapacitor

Cited by 12 publications

References 62 publications

Preparation of Nitrogen and Phosphorus Doped Porous Carbon from Watermelon Peel as Supercapacitor Electrode Material

Preparation of Nitrogen and Phosphorus Doped Porous Carbon from Watermelon Peel as Supercapacitor Electrode Material

Meso-Microporous Carbon Nanofibrous Aerogel Electrode Material with Fluorine-Treated Wood Biochar for High-Performance Supercapacitor

Algae Derived Carbon from Hydrothermal Liquefaction as Sustainable Carbon Electrode Material for Supercapacitor

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