Efficient 3-aminopropyltrimethoxysilane functionalised mesoporous ceria nanoparticles for CO2 capture

Azmi, Ashraf; Ruhaimi, A.H.; Aziz, M.A.A.

doi:10.1016/j.mtchem.2020.100273

Cited by 22 publications

(11 citation statements)

References 67 publications

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“…Metal oxides were the most cost-effective and had lesser toxicity than zeolites and MOFs among the absorbents. In addition, the oxide-based sorbents can trap carbon dioxide with high selectivity when exposed to high temperatures [30]. Usually, alkaline earth metal oxide sorbents, e.g., magnesium oxide (MgO) and calcium oxide (CaO), are utilized in the absorption CO 2 process.…”

Section: Metal Oxides For Co 2 Uptakementioning

confidence: 99%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

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Various carbon dioxide (CO2) capture materials and processes have been developed in recent years. The absorption-based capturing process is the most significant among other processes, which is widely recognized because of its effectiveness. CO2 can be used as a feedstock for the production of valuable chemicals, which will assist in alleviating the issues caused by excessive CO2 levels in the atmosphere. However, the interaction of carbon dioxide with other substances is laborious because carbon dioxide is dynamically relatively stable. Therefore, there is a need to develop types of catalysts that can break the bond in CO2 and thus be used as feedstock to produce materials of economic value. Metal oxide-based processes that convert carbon dioxide into other compounds have recently attracted attention. Metal oxides play a pivotal role in CO2 hydrogenation, as they provide additional advantages, such as selectivity and energy efficiency. This review provides an overview of the types of metal oxides and their use for carbon dioxide adsorption and conversion applications, allowing researchers to take advantage of this information in order to develop new catalysts or methods for preparing catalysts to obtain materials of economic value.

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Section: Metal Oxides For Co 2 Uptakementioning

confidence: 99%

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

et al. 2022

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“…58 It is noteworthy that excessive functional groups can block the pores, decrease CO 2 accessibility to the pore surface, reduce pore volume, and decrease adsorption capacity. [59][60][61] A reduction of CO 2 adsorption due to the decrease in pore volume has been found for some MOF modifications such as those of amine, [62][63][64][65][66][67] oxides, 68 flourines, 69 carboxyls, 62 and glycidyl methacrylate. 70 3.2.3.…”

Section: Mechanistic Interpretationmentioning

confidence: 99%

“…Usually, a CO 2 molecule and amine groups produce a carbamate 64,[74][75][76] via deprotonation of amine 77 and form a zwitterion intermediate. 78 The results of density functional calculations have revealed that the CO 2 capture process involves two steps: simultaneous nucleophilic attack of the CO 2 onto the metal-bound N atom with proton transfer and formation of a zwitterion intermediate, and then rearrangement of the zwitterion into ammonium carbamate.…”

Section: Mechanistic Interpretationmentioning

confidence: 99%

CO₂ uptake prediction of metal–organic frameworks using quasi-SMILES and Monte Carlo optimization

2022

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“…Conventional CO2 separation methods (such as amine absorption) have several limitations, including high equipment corrosion rate, high regeneration cost, loss of solvent and low CO2 loading capacity; thus, replacement of these methods with other CO2 capture techniques should be considered [1]. In this regard, one of the potential replacement methods is adsorption, which has been reported to possess promising advantages, for example, durability, easy regeneration, cost-effectiveness, and high adsorption capacity of the adsorbents [2,3]. Various adsorbents, such as zeolites, metal oxides, porous carbon, silica, metal-organic frameworks and covalent organic frameworks can be employed to achieve adsorption [4].…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, one of the potential replacement methods is adsorption, which has been reported to possess promising advantages, for example, durability, easy regeneration, cost-effectiveness, and high adsorption capacity of the adsorbents [2,3]. Various adsorbents, such as zeolites, metal oxides, porous carbon, silica, metal-organic frameworks and covalent organic frameworks can be employed to achieve adsorption [4]. Each adsorbent possesses unique tuneable morphological and textural properties, which have been extensively studied to realize maximum CO2 uptake capacity.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Magnesium Oxide Adsorbent Prepared via Lime (Citrus aurantifolia) Peel Bio-templating for CO2 Capture

Ruhaimi

Teh

Aziz

2021

Bull. Chem. React. Eng. Catal.

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The utilization of the lime (Citrus aurantifolia) peel as a template can improve the adsorbent’s structural properties, which consequently affect its CO2 uptake capacity. Herein, a mesoporous magnesium oxide (MgO-lime (Citrus aurantifolia) peel template (LPT)) adsorbent was synthesized using an LPT. MgO-LPT demonstrated improved structural properties and excellent CO2 uptake capacity. Moreover, another MgO adsorbent was prepared via thermal decomposition (MgO-TD) for comparison. The prepared adsorbents were characterized by N2 physisorption, Fourier transform infrared spectroscopy and thermogravimetric analysis. The CO2 uptake of these adsorbents was under 100% CO2 gas and ambient temperature and pressure conditions. MgO-LPT exhibited a higher Brunauer–Emmett–Teller surface area, Barrett–Joyner–Halenda pore volume, and pore diameter of 23 m2.g−1, 0.142 cm3.g−1, and 24.6 nm, respectively, than those of MgO-TD, which indicated the mesoporous structure of MgO-LPT. The CO2 uptake capacity of MgO-LPT is 3.79 mmol CO2.g−1, which is 15 times that of MgO-TD. This study shows that the application of lime peel as a template for the synthesis of MgO adsorbents is a promising approach to achieve MgO adsorbents with enhanced surface area and thus increased CO2 capture performance. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Efficient 3-aminopropyltrimethoxysilane functionalised mesoporous ceria nanoparticles for CO2 capture

Cited by 22 publications

References 67 publications

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

CO₂ uptake prediction of metal–organic frameworks using quasi-SMILES and Monte Carlo optimization

Mesoporous Magnesium Oxide Adsorbent Prepared via Lime (Citrus aurantifolia) Peel Bio-templating for CO2 Capture

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Efficient 3-aminopropyltrimethoxysilane functionalised mesoporous ceria nanoparticles for CO2 capture

Cited by 22 publications

References 67 publications

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

Metal Oxides as Catalyst/Supporter for CO2 Capture and Conversion, Review

CO2 uptake prediction of metal–organic frameworks using quasi-SMILES and Monte Carlo optimization

Mesoporous Magnesium Oxide Adsorbent Prepared via Lime (Citrus aurantifolia) Peel Bio-templating for CO2 Capture

Contact Info

Product

Resources

About

CO₂ uptake prediction of metal–organic frameworks using quasi-SMILES and Monte Carlo optimization