CO2 capture adsorbents functionalized by amine – bearing polymers: A review

Varghese, Anish; Karanikolos, Georgios N.

doi:10.1016/j.ijggc.2020.103005

Cited by 237 publications

(173 citation statements)

References 301 publications

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“…Thus, a range of nucleophilic reagents, including neutral N -heterocyclic carbenes [ 25 , 26 ], are known to react with CO 2 even under mild conditions, and some chemistry at transition metal centers is provided by the possibility of CO 2 insertion into the bond between a metal atom and a suitable anionic ligand, e.g., alkyl, allyl, alkoxide and hydride [ 27 , 28 , 29 , 30 , 31 , 32 ]. In this context, amines are key reactants towards carbon dioxide, and indeed carbon dioxide/amine systems have been intensively investigated in the field of capture/storage [ 33 , 34 , 35 ] and exploited for the incorporation of the CO 2 moiety within organic structures [ 36 , 37 , 38 , 39 ]. Furthermore, CO 2 is also prone to insertion reactions into a variety of metal-amide bonds, generating a carbamato ligand; however, metal complexes containing carbamato ligands are easily available through diverse synthetic routes not requiring the use of pressurized CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

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Following a related review dating back to 2003, the present review discusses in detail the various synthetic, structural and reactivity aspects of metal species containing one or more carbamato ligands, representing a large family of compounds across all the periodic table. A preliminary overview is provided on the reactivity of carbon dioxide with amines, and emphasis is given to recent findings concerning applications in various fields.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

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“…The amount of amine grafted onto a support depends on the density of the appropriate silanol groups. Hence, on the way to optimize amine-grafted materials for CO 2 capture, the main efforts are focused on increasing the number of amine functional groups per unit of support area, enhancing CO 2 -phylicity of the amines, and, finally, increasing the CO 2 capacity [19].…”

Section: Materials For Chemical Co 2 Adsorptionmentioning

confidence: 99%

“…For more detailed information concerning solid adsorbents functionalized by amines, we would recommend Ref. [19] and the closely related references therein.…”

Section: Materials For Chemical Co 2 Adsorptionmentioning

confidence: 99%

Materials for CO2, SOx, and NOx Emission Reduction

Shelyapina

Rodrı́guez-Iznaga

Petranovskii

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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Industrial development and urbanization require effective constant monitoring and effective removal of major air pollutants. Three of them, the fight against which is discussed in this chapter, appear in the process of burning fuel, although their genesis is different. Sulfur oxide is formed as a result of the combustion of impurities either in hydrocarbons, and in this case, the fight against it should begin with a deep cleaning of the fuel, or by burning coal, and then you have to deal with the desulfurization of exhaust gases. Nitrogen oxide pollutants are formed at high temperatures from nitrogen present in the air, and purification, respectively, occurs in the exhaust gases of heat engines. Carbon dioxide is the main product of the combustion of any fuel and, accordingly, requires special methods for its removal. The environmental impact of these gases is also different. SO x and NO x are pollutants that form smog and acid rain. CO 2 is greenhouse gas, and its removal is becoming one of the main goals for climate stabilization. Given these differences, this review of existing materials and processes to eliminate the three main gaseous air pollutants has been made.

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“…Within the area of carbon dioxide capture, liquid amines have seen the most use at scale in pilot plants designed to reversibly capture CO2 and yielding a purified stream of CO2 for subsequent sequestration [18], [21]- [23]. However, amines and especially their regeneration incur a relatively high energy cost, and there exist concerns regarding their toxicity [24], motivating research over the past two decades to develop alternative materials.…”

Section: Introduction and Objectives -Co2 Capture By Metal Oxidesmentioning

confidence: 99%

CO2 capture using solid sorbents: Fundamental aspects, mechanistic insights and recent advances

Dunstan¹,

Donat²,

Bork³

et al. 2021

Preprint

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Carbon dioxide capture and mitigation forms a key part of the technological response to combat climate change and reduce CO2 emissions. Solid materials capable of reversibly absorbing CO2 have been the focus of intense research for the past two decades, promising stability and low energy costs to implement and operate compared to the more widely used liquid amines. In this Review, we explore the fundamental aspects underpinning solid CO2 sorbents based on alkali and alkaline earth metal oxides operating at mid- to high temperature: how their structure, chemical composition and morphology impact their performance and long-term use. Various optimization strategies are outlined to improve upon the most promising materials, and we combine recent advances across disparate scientific disciplines including materials discovery, synthesis, and in situ characterization to present a coherent understanding of the mechanisms of CO2 absorption both at surfaces and within solid materials.

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CO2 capture adsorbents functionalized by amine – bearing polymers: A review

Cited by 237 publications

References 301 publications

Recent Advances in the Chemistry of Metal Carbamates

Recent Advances in the Chemistry of Metal Carbamates

Materials for CO2, SOx, and NOx Emission Reduction

CO2 capture using solid sorbents: Fundamental aspects, mechanistic insights and recent advances

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