Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (<i>Pinus</i><i>montezumae</i> Lamb.)

Márquez‐Montesino, Francisco; Torres-Figueredo, Neil; Lemus-Santana, Adela; Trejo, Fernando

doi:10.1002/ceat.202000051

Cited by 31 publications

(20 citation statements)

References 44 publications

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“…It can be observed that the iodine number increased from 627.03 to 892.31 mg/g with increasing the carbonization time from 0.5 to 1 h. As the contact time between Silver berry seeds and ZnCl 2 increases up to 1 h, a decrease in the iodine number was observed, indicating that a longer duration of carbonization time caused the collapse of micropores walls and recombination of carbon atoms. [47] Similar results have been reported by Yorgun et al, Altintig & Kirkil, and Sayğılı & Güzel. [8,14,39] On the other hand, the percentage of yield decreased with increasing time of carbonization, which was due to the increase in the carbon burn-off.…”

Section: Optimization Of Gac Synthesis Conditionssupporting

confidence: 83%

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation

Benmahdi

Oulmi

Khettaf

et al. 2021

Fullerenes, Nanotubes and Carbon Nanostructures

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Granular activated carbon (GAC) was synthesized from Silver berry (Elaeagnus Angustifolia L.) seeds using zinc chloride as the activation agent. To optimize the operating parameters, the effects of the time and temperature of carbonization, impregnation ratio, and heating rate on the iodine number and yield of activated carbon were studied. Optimized parameters were impregnation ratio of 1:1, carbonization temperature of 500 °C, carbonization time of 1 hour, and heating rate of 5 °C/min. The GAC synthesized under optimized conditions was characterized by Nitrogen adsorption-desorption isotherms, SEM, EDX, XRD, FT-IR, Boehm titration, TG-TGA, and TG-IR. It was found that the synthesized GAC has a microporous structure with a BET surface area of 1109 m 2 /g, a micropores volume of 0.317 cm 3 /g, and an average pore diameter of 2.1 nm. The methylene blue (MB) dye was employed as a molecule model to evaluate the porosity and the adsorption capacity of the synthesized GAC. The results showed that the maximum adsorption capacity of MB and the percent portion of the surface area (S MB /S BET ) were 120.48 mg/g and 30.62%, respectively. The experimental results reveal that the synthesized GAC can be used as a low-cost adsorbent for the removal of small and large environmental pollutants.

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Section: Optimization Of Gac Synthesis Conditionssupporting

confidence: 83%

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation

Benmahdi

Oulmi

Khettaf

et al. 2021

Fullerenes, Nanotubes and Carbon Nanostructures

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“…In addition, the absorption peak of 2884-2899 cm À 1 was associated with the methyl and methylene groups (CÀ H) belonging to the olefin compounds. [39] The CÀ H bonds and its conjugates in the acyclic compound group were also identified at the absorption peak of 1623-1628 cm À 1 , confirming the aliphatic properties in the activated carbon samples. Subsequently, the primary amine bond was found in the absorption bands of 2423 and 2419 within the MOAC and MOAC-H 3 PO 4 samples, respectively.…”

Section: Materials Analysesmentioning

confidence: 66%

“…XRD pattern of the MOAC monolith samples showed a low peak at 24-26°angle which correlated with the reflection plane (002), indicating a low graphite crystalline degree towards good amorphous properties. [39,40] Furthermore, a broad peak was found at an angle of 42-45°, which correlated to the reflection plane (100), therefore, indicating the disturbed (turbostratic) interlayer graphite carbon. [41] This is speculated relatively high electrical conductivity to improve the electrochemical properties.…”

Section: Materials Analysesmentioning

confidence: 93%

Biomass‐based Self‐single‐oxygen Heteroatom‐doped Hierarchical Porous Carbon Nanosheets for High‐performance Symmetrical Supercapacitors

Taer

Apriwandi

2022

ChemNanoMat

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Biomass‐based porous carbon holds potential for improving the electrochemical performance of supercapacitors due to its high surface area, 2D nanostructure, 3D hierarchical pores, and self‐multi‐doped‐heteroatoms. Here, 2D and 3D porous carbon nanostructures, as well as self‐single‐doped oxygen were successfully obtained from Moringa oleifera leaves waste by a facile, time‐saving, and cost‐effective strategy. The dried powder precursor was chemically provided with 0.5 m/L H3PO4 and ZnCl2 solutions at high‐temperature pyrolysis. Furthermore, electrode material was designed with sleekly slim binder‐free solid coins. The obtained porous carbon has a 2D nanosheet‐nanofiber and rich‐3D hierarchical porous structure with significantly high sub‐ultra micropores. Meanwhile, 17.62 % self‐doped oxygen was found to provide an extra pseudocapacitance effect. The optimum carbon possessed high electrochemical properties at a specific capacitance of 201 F g−1 in 1 M H2SO4 electrolyte. Furthermore, the maximum energy density was obtained at 25 Wh kg−1, at optimum power of 122 W kg−1 in current density of 1.0 A g−1. The electrochemical behavior of these samples was also reviewed through a 1 M Na2SO4 neutral aqueous electrolyte. Therefore, the great potential of Moringa oleifera leaves was observed as a porous carbon source with good material properties for enhancing the performance of electrochemical energy storage devices.

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“…Potato skins have almost the same chemical content as the fruit, which has 30% -40% cellulose which can produce carbon when heated to high temperatures. The addition of several chemical reagents in the processing of carbon electrodes can be used, such as ZnCl2, KOH, NaOH, K2CO3, H2SO4, H3PO4, and HNO3 [16][17][18]. ZnCl2 activator was seleced as chemical reagent this study due to their characteristics as a dehydrating agent, can evaporate completely at a temperature of 756 °C thus intiated optimum micropores [19].…”

Section: Introductionmentioning

confidence: 99%

High potential of yellow potato (Solanum Tuberosum L.) peel waste as porous carbon source for supercapacitor electrodes

Pertiwi

Yantі

Taslim

2022

J. Phys.: Conf. Ser.

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Yellow potato peel contains chemical components such as protein, fiber, starch and sugar which is composed atom carbon chains bonding. Heating potato peel at high temperatures can disrupt the bonding of the carbon atoms of the constituents, vaporizing volatile compounds, thereby producing high carbon fixed. This study preparation yellow potato peel-based carbon electrodes through a single-stage integrated pyrolysis with carbonization from room temperature to 600 °C in N2 gas atmosphere followed by physical activation to a temperature of 850°C in CO2 gas environment. The impregnation of ZnCl2 at different concentrations was optimized as an independent variable precursor to produce porous activated carbon for energy storage devices. The difference in concentration of 0.1M, 0.3M and 0.5M ZnCl2 can increase the porosity, structure of amorphous carbon and the resulting high electrochemical performance. Electrochemical properties were characterized using cyclic voltammetry and galvanostatic charge discharge methods in an aqueous electrolyte of 1M H2SO4 at a voltage of 0-1000 mV and a scanning rate of 1 mV s−1. Furthermore, the resulting specific capacitance increased from 82.82 F g−1, 195.66 F g−1 and 147.03 F g−1 based on the effect of the concentration of the chemical activator ZnCl2. While the specific capacitance obtained using the GCD method shows higher numbers, namely 145.13 F g−1, 223.25 F g−1 and 174.08 F g−1. Energy density 27.18 Wh kg−1 and power density 97.93 W kg−1 from cv method. The simple approach of activated carbon from potato peel waste is expected to produce an economical and simple porous carbon electrode for high performance energy storage application.

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Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

Cited by 31 publications

References 44 publications

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation

Biomass‐based Self‐single‐oxygen Heteroatom‐doped Hierarchical Porous Carbon Nanosheets for High‐performance Symmetrical Supercapacitors

High potential of yellow potato (Solanum Tuberosum L.) peel waste as porous carbon source for supercapacitor electrodes

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Activated Carbon by Potassium Carbonate Activation from Pine Sawdust (Pinusmontezumae Lamb.)

Cited by 31 publications

References 44 publications

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl2 activation

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl2 activation

Biomass‐based Self‐single‐oxygen Heteroatom‐doped Hierarchical Porous Carbon Nanosheets for High‐performance Symmetrical Supercapacitors

High potential of yellow potato (Solanum Tuberosum L.) peel waste as porous carbon source for supercapacitor electrodes

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Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation

Synthesis and characterization of microporous granular activated carbon from Silver berry seeds using ZnCl₂ activation