Synthesis of biomass carbon electrode materials by bimetallic activation for the application in supercapacitors

Guo, Fei; Jiang, Xiaochen; Jia, Xiaopeng; Liang, Shuang; Lin, Qian; Rao, Zhonghao

doi:10.1016/j.jelechem.2019.05.004

Cited by 75 publications

(26 citation statements)

References 50 publications

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“…It is clearly seen that the surface area and mean width of micropores have a high goodness with fitted data, which give an impression about the importance of both of them. The results show also that the use of KOH and raw material is the most appropriate way to give the higher specific surface area as is the case with some other previously published works [45,46]. Fig.…”

Section: Resultssupporting

confidence: 74%

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

daiem¹,

Alotaibi²,

Alosime³

et al. 2020

Pol. J. Environ. Stud.

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Activated carbons have been prepared from rice straw by considering the material forms of rice straw, the chemical activation agent and the preparation method. The study seeks optimal conditions for giving better mico-and nano-properties, and to support the corresponding molecular structure. All the obtained results are referred to those of a commercial sample. Fourier transform infrared absorption, X-ray photoelectron spectroscopy, and dispersive X-ray spectroscopy are combined to determine functional groups. Moreover, a quantum chemical calculation has been done using density functional theory to argue the proposed molecular structure. Principally, the vibrational properties are compared to experimental results, and the corresponding electronic structure is calculated. Thermal stability and eventual reactions are evidenced by both differential and gravimetric thermal analysis. The surface topography of the resulting activated carbon is checked by scanning electron microscope and correlated with their chemical and textual characteristics carried out from Brunauer, Emmett and Teller analysis. Results illustrate that the resulting product is a mixture of carbon graphic structure and acidic/basic entities and exhibit a global acidic pH. The use of KOH as oxidant agent and the ground raw material form leads to obtain good properties such as higher surface area and higher porosity. Based on the size compatibility making it possible to introduce low-radius single-walled carbon nanotubes, the electronic structures of the prepared activated carbon and that of chiral (5,5) SWCNTs and their corresponding *

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Section: Resultssupporting

confidence: 74%

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

daiem¹,

Alotaibi²,

Alosime³

et al. 2020

Pol. J. Environ. Stud.

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“…Some studies employed mixtures of iron chloride with other activating agents, even including an activating step in the presence of a gasification agent. In this sense, Guo et al [75] combined different mixtures of metal activators (FeCl 3 /MgCl 2 , FeCl 3 /ZnCl 2 , and ZnCl 2 /MgCl 2 ) under CO 2 to synthesize peanut shell-derived activated carbons used as supercapacitors. This work concludes that FeCl 3 and ZnCl 2 are responsible for microporosity development, while MgCl 2 promotes mesopore formation.…”

Section: Mixtures Of Activating Agentsmentioning

confidence: 99%

Review on Activated Carbons by Chemical Activation with FeCl3

et al. 2020

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This study reviews the most relevant results on the synthesis, characterization, and applications of activated carbons obtained by novel chemical activation with FeCl3. The text includes a description of the activation mechanism, which compromises three different stages: (1) intense de-polymerization of the carbon precursor (up to 300 °C), (2) devolatilization and formation of the inner porosity (between 300 and 700 °C), and (3) dehydrogenation of the fixed carbon structure (>700 °C). Among the different synthesis conditions, the activation temperature, and, to a lesser extent, the impregnation ratio (i.e., mass ratio of FeCl3 to carbon precursor), are the most relevant parameters controlling the final properties of the resulting activated carbons. The characteristics of the carbons in terms of porosity, surface chemistry, and magnetic properties are analyzed in detail. These carbons showed a well-developed porous texture mainly in the micropore size range, an acidic surface with an abundance of oxygen surface groups, and a superparamagnetic character due to the presence of well-distributed iron species. These properties convert these carbons into promising candidates for different applications. They are widely analyzed as adsorbents in aqueous phase applications due to their porosity, surface acidity, and ease of separation. The presence of stable and well-distributed iron species on the carbons’ surface makes them promising catalysts for different applications. Finally, the presence of iron compounds has been shown to improve the graphitization degree and conductivity of the carbons; these are consequently being analyzed in energy storage applications.

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“…The broad peak at 3422-3445 cm -1 is belonged to O-H stretching vibration which is assigned to the hydroxyl group and phenol hydroxyl groups 28,39) . A peak at 2883-2884 cm -1 represents the C-H stretching 40,41) .…”

Section: Resultsmentioning

confidence: 99%

“…3: FTIR spectra of Char, C600 and C700. 28,39) Elemental analysis of the prepared samples shows composition as listed in Table 3. with Carbon dominates the composition besides hydrogen, and nitrogen.…”

Section: Resultsmentioning

confidence: 99%

Activated Carbon from Bagasse and its Application for Water Vapor Adsorption

Ridassepri¹,

Rahmawati²,

Heliani³

et al. 2020

Evergreen

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This research study carbon activation prepared from Bagasse, a waste of sugar factory. The activation was conducted in water vapor at 600°C (C600) and 700 °C (C700). The activated carbon was then tested for water vapor adsorption. The produced-carbon has diffraction peak at 2θ of 25°, with surface area are 584.940 m²/g and 533.301 m²/g for C600 and C700, respectively. C600 also shows higher water vapor adsorption than C700, the value is 0.223 g/g. It shows a potency of Bagasse waste as raw material for adsorbent powder.

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Synthesis of biomass carbon electrode materials by bimetallic activation for the application in supercapacitors

Cited by 75 publications

References 50 publications

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

Review on Activated Carbons by Chemical Activation with FeCl3

Activated Carbon from Bagasse and its Application for Water Vapor Adsorption

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