Efficient carbon dioxide capture by nitrogen and sulfur dual-doped mesoporous carbon spheres from polybenzoxazines synthesized by a simple strategy

Konnola, Raneesh; Anirudhan, T.S.

doi:10.1016/j.jece.2019.103614

Cited by 27 publications

(25 citation statements)

References 61 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 , 55 , 56 , 57 ], flame retardance […”

Section: Introductionmentioning

confidence: 99%

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%

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

et al. 2021

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“…Mohamed et al also saw the increased concentration of nitrogen and oxygen in benzoxazines after KOH activation, which positively correlated with CO 2 capture [110]. This outcome was also contributed to by the increased porosity (micropore diameter and BET surface area) that resulted from activation [109]. A study by Mohamed et al also found a higher microporosity upon activation, as well as increased nitrogen content in various forms [111].…”

Section: As Adsorbents Co 2 Capturementioning

confidence: 93%

“…Within the past decade, polybenzoxazines have been found to be extremely effective in adsorbing CO 2 from air streams, which is crucial for reducing industrial pollution and weakening the effects of global warming from carbon emissions [37,[106][107][108][109][110][111]. Many studies attributed this ability to the porous qualities of benzoxazine, particularly the micropore volume and BET surface area.…”

Section: As Adsorbents Co 2 Capturementioning

confidence: 99%

“…Many studies attributed this ability to the porous qualities of benzoxazine, particularly the micropore volume and BET surface area. Micropore volume, which originates from the release of degradation products during carbonization [109], is the primary driving factor behind CO 2 adsorption [37,107]. Higher micropore volumes allow for increased CO 2 adsorption, as observed by the trend in Figure 41 showing that the highest CO 2 uptake at 1 bar of 5.72 mmol/g occurred in the benzoxazine with the highest micropore volume of 0.319 cm 3 /g, a montmorillonite carbon aerogel with a main-chain BA-tepa weight ratio of 1 (MMT-CA-1) [37,107,111].…”

Section: As Adsorbents Co 2 Capturementioning

confidence: 99%

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Advanced Carbon Materials Derived from Polybenzoxazines: A Review

et al. 2021

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This comprehensive review article summarizes the key properties and applications of advanced carbonaceous materials obtained from polybenzoxazines. Identification of several thermal degradation products that arose during carbonization allowed for several different mechanisms (both competitive ones and independent ones) of carbonization, while also confirming the thermal stability of benzoxazines. Electrochemical properties of polybenzoxazine-derived carbon materials were also examined, noting particularly high pseudocapacitance and charge stability that would make benzoxazines suitable as electrodes. Carbon materials from benzoxazines are also highly versatile and can be synthesized and prepared in a number of ways including as films, foams, nanofibers, nanospheres, and aerogels/xerogels, some of which provide unique properties. One example of the special properties is that materials can be porous not only as aerogels and xerogels, but as nanofibers with highly tailorable porosity, controlled through various preparation techniques including, but not limited to, the use of surfactants and silica nanoparticles. In addition to the high and tailorable porosity, benzoxazines have several properties that make them good for numerous applications of the carbonized forms, including electrodes, batteries, gas adsorbents, catalysts, shielding materials, and intumescent coatings, among others. Extreme thermal and electrical stability also allows benzoxazines to be used in harsher conditions, such as in aerospace applications.

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“…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. In another research, the hierarchical porous carbons from sugar as the carbon precursor and nano-CaCO 3 as the hard template were prepared and the results showed that the CO 2 uptake reaches 2.84 mmol/g at 25 ˚C and 1 bar and 3.66 mmol/g at 0 ˚C and 1 bar [51].…”

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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Efficient carbon dioxide capture by nitrogen and sulfur dual-doped mesoporous carbon spheres from polybenzoxazines synthesized by a simple strategy

Cited by 27 publications

References 61 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

Advanced Carbon Materials Derived from Polybenzoxazines: A Review

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

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