Advancement in porous adsorbents for post-combustion CO2 capture

Modak, Arindam; Jana, Subhra

doi:10.1016/j.micromeso.2018.09.018

Cited by 142 publications

(71 citation statements)

References 205 publications

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Section: Application Of Mofs In Gas Chromatographic Separationmentioning

confidence: 99%

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Tang

2019

Chemistry An Asian Journal

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Metal-organic frameworks (MOFs)h ave been applied in various fields because of their fascinating structures and excellent properties. MOFs can serve as stationary phases in gas chromatography (GC), which has led to exceptional improvements of performance. Here, we summarize the application of MOFs in GC based on the classification of analytes. The advantages and separation mechanism of MOFs as stationaryp hases in GC are discussed in combination with the characteristics and structures of MOFs. The limitationsa re also summarized in this review,w hich can provide prospects on furtherr esearch for the applications of MOFs.

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Section: Application Of Mofs In Gas Chromatographic Separationmentioning

confidence: 99%

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Tang

2019

Chemistry An Asian Journal

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“…[3][4][5][6] Unlike classic covalent polymers, COFs offer an internal order, with high specific surface area and low framework density, homogeneous pore size distribution, and stable structure that gives them special applicability in a wide range of fields. [5,7] The main fields of application include gas capture, [8] separation and storage, [9][10][11] biomedicine, [12,13] drug delivery, [14,15] catalysis, [16,17] energy storage, [8,18] optoelectronic devices, [19] sample pretreatment, [20] chromatographic separation, [21] and sensing, [22] among other applications. [23][24][25] Depending on the COFs' applicability, their porosity, functionalization, and structure must be carefully designed.…”

Section: Introductionmentioning

confidence: 99%

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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Covalent organic frameworks (COFs) are relatively recent materials. They have received great attention due to their interesting properties. However, the application of microwaves in their synthesis, despite its advantages such as faster and more reproducible processes, is a minority. Herein, a comprehensive compilation of the research results published in the microwave‐assisted synthesis (MAS) of COFs is presented. This review includes articles of 2D and 3D COFs prepared using microwaves as source of energy. The articles have been classified depending on the functional groups including boronate ester, imines, enamines, azines, and triazines, among others. It compiles the main parameters of synthesis and characteristics of the materials together with some general issues related with COFs and microwaves. Additionally, current and future perspectives of the topic have been discussed.

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“…In the case of direct air capture 8 , companies like Climeworks [9][10] and Global Thermostat [11][12] are already using solid amine-based sorbents. Some cases of post-combustion CO2 capture have also been proposed for their application [13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

Unravelling the Structure of Chemisorbed CO₂ Species in Mesoporous Aminosilicas: A Critical Survey

Afonso

Sardo

Mafra

et al. 2019

Environ. Sci. Technol.

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Chemisorbent materials, based on porous aminosilicas, are amongst the most promising adsorbents for direct air capture applications, one of the key technologies to mitigate carbon emissions. Herein, a critical survey of all reported chemisorbed CO2 species, which may form in aminosilica surfaces, is performed by revisiting and providing new experimental proofs of assignment of the distinct CO2 species reported thus far in the literature, highlighting controversial assignments regarding the existence of chemisorbed CO2 species still under debate. Models of carbamic acid, alkylammonium carbamate with different conformations and hydrogen bonding arrangements were ascertained using density functional theory (DFT) methods, mainly through the comparison of the experimental 13 C and 15 N NMR chemical shifts with those obtained computationally. CO2 models with variable number of amines and silanol groups were also evaluated to explain the effect of amine aggregation in CO2 speciation under confinement. In addition, other less commonly studied chemisorbed CO2 species (e.g., alkylammonium bicarbonate, ditethered carbamic acid and silylpropylcarbamate), largely due to the difficulty in obtaining spectroscopic identification for those, have also been investigated in great detail. The existence of either neutral or charged (alkylammonium siloxides) amine groups, prior to CO2 adsorption, is also addressed. This work extends the molecular-level understanding of chemisorbed CO2 species in amine-oxide hybrid surfaces showing the benefit of integrating spectroscopy and theoretical approaches.

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Advancement in porous adsorbents for post-combustion CO2 capture

Cited by 142 publications

References 205 publications

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Unravelling the Structure of Chemisorbed CO₂ Species in Mesoporous Aminosilicas: A Critical Survey

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Advancement in porous adsorbents for post-combustion CO2 capture

Cited by 142 publications

References 205 publications

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Metal–Organic‐Framework‐based Gas Chromatographic Separation

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Unravelling the Structure of Chemisorbed CO2 Species in Mesoporous Aminosilicas: A Critical Survey

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Product

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Unravelling the Structure of Chemisorbed CO₂ Species in Mesoporous Aminosilicas: A Critical Survey