Enhanced CO2 capturing over ultra-microporous carbon with nitrogen-active species prepared using one-step carbonization of polybenzoxazine for a sustainable environment

Thubsuang, Uthen; Dubas, Stephan Thierry; Wongkasemjit, Sujitra; Chaisuwan, Thanyalak

doi:10.1016/j.jenvman.2018.07.004

Cited by 24 publications

(22 citation statements)

References 59 publications

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“…In general, PBzs emerged as a promising class of thermoset polymers exhibiting versatility in a wide range of applications including adhesives [9][10][11][12][13][14], flame resistant polymers [15][16][17][18], cathodic material in batteries [19][20][21][22][23][24], coatings [14,[25][26][27][28], materials for aerospace applications [29], carbon dioxide adsorbent [30][31][32][33][34], detection of metal ions [35][36][37][38], 3D printing [39] and electronics [40,41]. Besides effective compatibilization with many polymers, they also offer notable properties such as good mechanical strength [42][43][44][45][46][47][48], high thermal stability [49][50][51][52][53][54]…”

Section: Introductionmentioning

confidence: 99%

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Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

et al. 2021

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Due to their outstanding and versatile properties, polybenzoxazines have quickly occupied a great niche of applications. Developing the ability to polymerize benzoxazine resin at lower temperatures than the current capability is essential in taking advantage of these exceptional properties and remains to be most challenging subject in the field. The current review is classified into several parts to achieve this goal. In this review, fundamentals on the synthesis and evolution of structure, which led to classification of PBz in different generations, are discussed. Classifications of PBzs are defined depending on building block as well as how structure is evolved and property obtained. Progress on the utility of biobased feedstocks from various bio-/waste-mass is also discussed and compared, wherever possible. The second part of review discusses the probable polymerization mechanism proposed for the ring-opening reactions. This is complementary to the third section, where the effect of catalysts/initiators has on triggering polymerization at low temperature is discussed extensively. The role of additional functionalities in influencing the temperature of polymerization is also discussed. There has been a shift in paradigm beyond the lowering of ring-opening polymerization (ROP) temperature and other areas of interest, such as adaptation of molecular functionality with simultaneous improvement of properties.

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Section: Introductionmentioning

confidence: 99%

“…Figure33. Proposed polymerization mechanism to reflect the effect on structure linkages in PBz with variation in temperature and catalyst.…”

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confidence: 99%

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

et al. 2021

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“…Surface features including specific surface area, total pore volume, and micropore volume of carbon adsorbents are very important in the physisorption process for depicting a high CO 2 adsorption capacity. The kinetic diameter of the CO 2 molecule (0.33 nm) is easily accommodated in the micropores (<2 nm) of carbon sorbents . Therefore, we believe that a higher surface area of 1646 m 2 /g and a relatively higher microporosity (59%) are the predominant reasons for the higher CO 2 adsorption capacity of AHNC4.…”

Section: Resultsmentioning

confidence: 95%

Carbon Nanoflakes and Nanotubes from Halloysite Nanoclays and their Superior Performance in CO₂ Capture and Energy Storage

Ramadass¹,

Sathish²,

MariaRuban³

et al. 2020

ACS Appl. Mater. Interfaces

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Nanoporous carbon (HNC) with a flake and nanotubular morphology and a high specific surface area is prepared by using natural halloysite nanotubes (HNTs), a low-cost and naturally available clay material with a mixture of flaky and tubular morphology. A controlled pore-filling technique is used to selectively control the porosity, morphology, and the specific surface area of the HNC. Activated nanoporous carbon (AHNC) with a high specific surface area is also prepared by using HNT together with the activation process with zinc chloride (ZnCl2). HNC exhibits flakes and tubular morphologies, which offer a high specific surface area (837 m2/g). The specific surface area of AHNC is 1646 m2/g, 74 times greater than the specific surface area of pure HNT (22.5 m2/g). These data revealed that the single-step activation combined with the nanotemplating results in creating a huge impact on the specific surface area of the HNC. Both HNC and AHNC are employed as adsorbents for CO2 adsorption at different pressures and adsorption temperatures. The CO2 adsorption capacity of AHNC is 25.7 mmol/g at 0 °C, which is found to be significantly higher than that of activated carbon (AC), mesoporous carbon (CMK-3), mesoporous carbon nitride (MCN-1), and multiwalled carbon nanotube (MWCNT). AHNC is also tested as an electroactive material and demonstrates good supercapacitance, cyclic stability, and high capacitance retention. Specific capacitance of AHNC in the aqueous electrolyte is 197 F/g at 0.3 A/g, which is higher than that of AC, MWCNT, and CMK-3. The technique adopted for the preparation of both HNC and AHNC is quite unique and simple, has the potential to replace the existing highly expensive and sophisticated mesoporous silica-based nanotemplating strategy, and could also be applied for the fabrication of series of advanced nanostructures with unique functionalities.

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“…This formation approach not only avoided the high-temperature curing process and the employment of autoclave equipment, but also further supplemented the swelling mechanism of the emulsion strategy. Benzoxazines are an interesting class of monomers, which are produced by the Mannich condensation reaction of organic primary amine, phenol derivatives and formaldehyde [ 24 , 25 , 26 , 27 ]. Owing to its delicate molecular design flexibility, the content and type of nitrogen functional groups in benzoxazine could be simply regulated by altering the type or ratio of primary amines.…”

Section: Introductionmentioning

confidence: 99%

Nanoengineering of N-doped Mesoporous Carbon Nanoparticles with Adjustable Internal Cavities via Emulsion-Induced Assembly

et al. 2022

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The preparation of mesoporous carbonaceous materials with particularly adjustable morphology is currently a hot area of research in mesoporous materials. Herein, a novel approach is reported for the construction of N-doped multicavity mesoporous carbon nanoparticles (NMMCNs) based on the “emulsion swelling–acid curing mechanism” using a nanoemulsion assembly method under a high-speed shearing force. Intriguingly, this approach adopted a novel acid (HCl) curing procedure. Impressively, the morphology evolution from an internal multicavity to a single cavity and then to a non-cavity interior structure could be accomplished by simply varying the synthesis parameters. Additionally, this synthesis approach ingeniously overcame the following problems: (i) technically, the employment of high temperatures and high pressures in traditional hydrothermal reaction curing environments is avoided; (ii) this approach removes the requirement for silicon coating, which provides a limited pyrolysis condition, to obtain a multi-chamber structure. Resveratrol (Res) is an insoluble natural medicine and was successfully loaded into NMMCNs, thereby the Res–NMMCNs delivery system was constructed. Importantly, the Res–NMMCNs delivery system could still retain the antitumor and antioxidant activity of Res in vitro.

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Enhanced CO2 capturing over ultra-microporous carbon with nitrogen-active species prepared using one-step carbonization of polybenzoxazine for a sustainable environment

Cited by 24 publications

References 59 publications

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Carbon Nanoflakes and Nanotubes from Halloysite Nanoclays and their Superior Performance in CO₂ Capture and Energy Storage

Nanoengineering of N-doped Mesoporous Carbon Nanoparticles with Adjustable Internal Cavities via Emulsion-Induced Assembly

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Enhanced CO2 capturing over ultra-microporous carbon with nitrogen-active species prepared using one-step carbonization of polybenzoxazine for a sustainable environment

Cited by 24 publications

References 59 publications

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Review on the Accelerated and Low-Temperature Polymerization of Benzoxazine Resins: Addition Polymerizable Sustainable Polymers

Carbon Nanoflakes and Nanotubes from Halloysite Nanoclays and their Superior Performance in CO2 Capture and Energy Storage

Nanoengineering of N-doped Mesoporous Carbon Nanoparticles with Adjustable Internal Cavities via Emulsion-Induced Assembly

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Carbon Nanoflakes and Nanotubes from Halloysite Nanoclays and their Superior Performance in CO₂ Capture and Energy Storage