Synthesis and Characterizations of Nanocarbon

Lobato-Peralta, Diego R.; Ayala-Cortés, Alejandro; Duque-Brito, Estefanía; Okoye, Patrick U.

doi:10.1007/978-981-99-9935-4_2

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…In recent years, AC has become widely used as an adsorbent material. The porous properties of AC make it an effective purifier of air (removing odors and toxic substances) and water (removal of minerals and organic matter). , For example, it has been used to remove heavy metals such as chromium, metal arsenic, and pharmaceuticals from aqueous solutions, , adsorb greenhouse gases and CO 2 from the air, − and remove dyes and coloring agents such as methylene blue from textile effluent. ,, Besides being used as an adsorbent, it is also applied to make electronic material and catalyst support, for example, electrodes for supercapacitors and anodes for lithium-ion batteries which have outstanding cyclic stability. − A supercapacitor made of AC retains 93% capacitance over 5000 cycles indicating greater energy density and durability …”

Section: Introductionmentioning

confidence: 99%

Synthesis, Activation, and Characterization of Carbon Fiber Precursor Derived from Jute Fiber

Hossen,

Islam,

Hoque

et al. 2024

ACS Omega

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Activated carbon (AC) fiber is a carbonaceous material with a porous structure that has a tremendous scope of application in different fields. Conventionally, AC is derived from fossil fuel-based raw materials like polyacrylonitrile (PAN) and pitch. In this work, AC was synthesized from ecofriendly, renewable, and ubiquitous jute fiber. Systematically, the jute fiber was washed and pretreated with NaOH. Raw jute and NaOH-treated jute were carbonized/pyrolyzed at 500 °C for 1 h in presence of N 2 gas. The carbonized carbon was activated with H 3 PO 4 and KOH and again pyrolyzed at 650 °C for 1.5 h maintaining the inert condition. The different features of activated carbons were characterized with field emission-scanning electron microscope, energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray diffraction (XRD), and thermogravimetric analysis. The average yield of carbonized and activated carbons was recorded at 19 and 13.8%, respectively. The scanning electron microscopic images confirmed a honeycomb-like porous structure. It was observed that KOH-activated carbon exhibited a more porous structure than the H 3 PO 4 -activated carbons. The average pore diameter of activated carbons was noted to be 1.3 μm. The pore density was higher in case of KOH-activated carbons accounting for 2.15 pore/μm. The EDX analysis showed that H 3 PO 4 -activated carbons had more than 90% carbon atoms indicating a significant carbon content. The TEM images revealed that AC particles were in the nanoscale range. The average particle sizes of H 3 PO 4 -activated carbon and KOHactivated carbon were 36.38 and 32.8 nm, respectively. The XRD study demonstrated the highly disordered and low level of crystallinity of AC. It was detected that the AC showed much higher thermal resistance than the jute fiber. The H 3 PO 4 -activated carbon obtained from NaOH-treated jute remained at 84% even after 500 °C. A higher thermal resistance was achieved with H 3 PO 4activated carbon since it contains 0.56% phosphorus, which was confirmed by EDX investigation. It was found that a higher carbon yield was obtained from NaOH-treated jute. The porous structure of the material showed that it could be used as an adsorbent. Due to its high thermal stability, it is recommended for flame retardants and heat insulation applications as well.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Activation, and Characterization of Carbon Fiber Precursor Derived from Jute Fiber

Hossen,

Islam,

Hoque

et al. 2024

ACS Omega

View full text Add to dashboard Cite

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A review on carbon materials for electrochemical energy storage applications: State of the art, implementation, and synergy with metallic compounds for supercapacitor and battery electrodes

Lobato-Peralta,

Okoye,

Alegre

2024

Journal of Power Sources

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Energy systems and green sourced nanomaterials—A today’s outlook

Kausar

2024

Mater. Tech. Rep.

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Owing to current growing demands of environmental friendly energy devices, innumerable green materials/nanomaterials have been applied to design the desired high tech devices. Amongst energy devices, supercapacitors have been ranked distinctively for efficient energy storage competence. Principally, green nanocomposites derived from green or ecological polymers and green nanoparticles have been scrutinized for supercapacitor components. Concerning this, current review has been planned to sketch the energy storage application of green nanocomposites, predominantly for supercapacitors. In this concern, mostly synthetic green polymers (such as polyaniline, polypyrrole, etc.) and their blends with natural polymers (like chitosan) having fine biodegradability, non-toxicity, low cost, and superior device end performance have been found as the noteworthy materials. Additionally, green nanofillers like carbon nanoparticles (carbon nanotube, graphene, etc.) and metal nanoparticles have been processed with green polymers via ecological techniques, like in situ, solution, sonication, mixing, hydrothermal, exfoliation, reduction, etc., to form the anticipated energy device components. In consequence, the designed ecological nanocomposites expectedly had the advantages of low price/weight, superior mechanical/heat resilience, electron transference, capacitance, power/charge density, charge-discharge, sustainability as well as environmentally friendliness for energy related methodological systems. Incidentally, the design and performance challenges towards the application of ecological nanocomposites in energy storage devices have been conversed.

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Synthesis and Characterizations of Nanocarbon

Cited by 3 publications

References 44 publications

Synthesis, Activation, and Characterization of Carbon Fiber Precursor Derived from Jute Fiber

Synthesis, Activation, and Characterization of Carbon Fiber Precursor Derived from Jute Fiber

A review on carbon materials for electrochemical energy storage applications: State of the art, implementation, and synergy with metallic compounds for supercapacitor and battery electrodes

Energy systems and green sourced nanomaterials—A today’s outlook

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