Design and fabrication of hierarchically porous carbon frameworks with Fe2O3 cubes as hard template for CO2 adsorption

Shi, Jinsong; Cui, Hongmin; Yan, Nanfu; Liu, Yuewei

doi:10.1016/j.cej.2020.124459

Cited by 101 publications

(30 citation statements)

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“…The N contents of all samples summered from XPS measurement were in the range of 4.8–5.6 wt % (shown in Table ), which could confirm the successful doping of nitrogen into the frameworks of N-AC samples. The well-fitted N 1s region (Figure a–c) showed three species presented on the surfaces of N-AC samples, which can be attributed to quaternary nitrogen (401.5 eV), pyrrolic-N (400.3 eV), and pyridinic-N structure (398.7 eV), respectively. The detailed contents of the nitrogen species are listed in Table S1.…”

Section: Results and Discusionmentioning

confidence: 98%

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture

et al. 2020

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Here, hierarchical porous nitrogen-containing activated carbons (N-ACs) were prepared with LiCl-ZnCl 2 molten salt as a template derived from cheap chitosan via simple one-step carbonization. The obtained N-ACs with the highest specific surface area of 2025 m 2 g –1 and a high nitrogen content of 5.1 wt % were obtained using low molten salt/chitosan mass ratio (3/1) and moderate calcination temperature (1000 °C). Importantly, using these N-ACs as CO 2 solid-state adsorbents, the maximum CO 2 capture capacities could be up to 7.9/5.6 mmol g –1 at 0 °C/25 °C under 1 bar pressure, respectively. These CO 2 capture capacities of N-ACs were the highest compared to reported biomass-derived carbon materials, and these values were also comparable to most of porous carbon materials. Moreover, as-made N-ACs also showed good selectivity for CO 2 /N 2 separation and excellent recyclability. The unique hierarchical porous structure of N-ACs thus provided the right combination of adsorbent properties and could enable the design of high-performance CO 2 solid adsorbents.

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Section: Results and Discusionmentioning

confidence: 98%

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture

et al. 2020

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“…At the end, the porous carbon material or the reverse replica is formed after the exclusion of the precursor. A series of various materials like silicas, 163 zeolites, 164 metal oxides (MgO, 165 ZnO, 166 Fe 2 O 3 , 167 etc. ) and others of distinct shapes have been adequately used, yielding highly ordered/disordered porous carbons.…”

Section: Synthesis Methods For Preparation Of Nanoporous Carbonsmentioning

confidence: 99%

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

et al. 2022

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“…Therefore, the TEOS molar ratio was the most effective parameter, on the CO 2 adsorption capacity of carbons, among the synthesis parameters examined. uptake at 273 K and 1 bar was reported as 3.80 mmol/g [49]. The nitrogen and sulfur dual-doped ordered mesoporous carbon spheres were prepared by Konnola and Anirudhan [50] and the capacity of 4.25 mmol/g at 273 and 1 bar was reported for CO 2 uptake.…”

Section: Co 2 Adsorptionmentioning

confidence: 99%

Preparation and characterization of templated porous carbons from sucrose by one-pot method and application as a CO2 adsorbent

Gürbüz

Tümsek

2021

Turk J Chem

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The templated porous carbons were prepared from sucrose by one-pot method. In this method in which the pre-synthesis of the hard template is eliminated, the porous carbons were produced by organic-inorganic self-assembly of sucrose, tetraethyl ortosilicate (TEOS), Pluronic P123 and n-butanol in an acidic medium and subsequent carbonization. The synthesis parameters such as sucrose amount, TEOS molar ratio and carbonization temperature were evaluated for describing their effects on the pore 2 structures of the synthesized carbons. The prepared porous carbons were characterized by N 2 adsorption, thermogravimetric analysis (TGA), Raman spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) techniques. The carbon dioxide adsorption uptakes of the obtained porous carbons were determined at 1 bar and 273 K. The templated carbon obtained with the lowest TEOS molar ratio exhibited the highest BET surface area of 1289 m 2 /g and micropore volume of 0.467 cm 3 /g, and showed the highest CO 2 uptake of 2.28 mmol/g.

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Design and fabrication of hierarchically porous carbon frameworks with Fe2O3 cubes as hard template for CO2 adsorption

Cited by 101 publications

References 50 publications

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

Preparation and characterization of templated porous carbons from sucrose by one-pot method and application as a CO2 adsorbent

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Design and fabrication of hierarchically porous carbon frameworks with Fe2O3 cubes as hard template for CO2 adsorption

Cited by 101 publications

References 50 publications

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO2 Capture

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO2 Capture

Recent advancement of biomass-derived porous carbon based materials for energy and environmental remediation applications

Preparation and characterization of templated porous carbons from sucrose by one-pot method and application as a CO2 adsorbent

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Product

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Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture

Molten Salt Template Synthesis of Hierarchical Porous Nitrogen-Containing Activated Carbon Derived from Chitosan for CO₂ Capture