Mechanochemical interaction of alkali metal metasilicates with carbon dioxide: 2. The influence of thermal treatment on the properties of activated samples

Калинкин, А. М.; Калинкина, Е. В.; Zalkind, O. A.; Makarova, T. I.

doi:10.1134/s1061933x08010079

Cited by 5 publications

(4 citation statements)

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“…Different alkaline ceramics show excellent CO 2 capture properties. − Some of these ceramics are lithium silicates (Li 8 SiO 6 , Li 4 SiO 4 , and Li 2 SiO 3 ), ,,,,− lithium aluminate (Li 5 AlO 4 ), , lithium zirconate (Li 2 ZrO 3 ), ,− sodium silicate (Na 2 SiO 3 ), and sodium zirconate (Na 2 ZrO 3 ). ,− The CO 2 chemisorption mechanism on these ceramics has already been proposed. Initially, CO 2 chemisorption is produced over the ceramic surface, which implies that an external shell is formed.…”

Section: Introductionmentioning

confidence: 99%

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

Alcántar-Vázquez

Gómez-García²,

Tavizón³

et al. 2014

J. Phys. Chem. C

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To determine the influence of the aluminum content in the sodium zirconate during the CO 2 chemisorption process, specific compositions in the Na 2 (Zr 1−x Al x )O 3−x/2 solid solution were produced. The synthesis was performed in order to restrict the aluminum crystalline sites to tetrahedral positions, substituting zirconium atoms. Samples were characterized using Xray diffraction, N 2 adsorption−desorption and 27 Al solid-state nuclear magnetic resonance. Then, samples were tested as CO 2 captors using dynamic and isothermal analyses. Additionally, ionic conduction experiments were performed in different sodium containing phases to determine the effect of these phases in the CO 2 chemisorption process. Results showed that there are several factors that determine the CO 2 chemisorption in the pristine Na 2 ZrO 3 and compounds of the Na 2 (Zr 1−x Al x )O 3−x/2 solid solution. Some of these factors are the presence or absence of different structural vacancies, as well as the presence of different phases in the carbonated external shell.

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Section: Introductionmentioning

confidence: 99%

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

Alcántar-Vázquez

Gómez-García²,

Tavizón³

et al. 2014

J. Phys. Chem. C

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“…The rapid increase in Earth’s population over the last few decades, combined with an improvement in the quality of life, are directly related to the dramatic increase in the concentration of man-made CO 2 , as both are related to the production and consumption of energy primarily obtained from fossil fuels. − To mitigate the impact of greenhouse gases, it is critical to trap CO 2 from fossil fuel power plants. The first step in carbon sequestration is the CO 2 capture from flue gas. − To this end, a variety of lithium ceramics have been tested as possible CO 2 -capturing materials. − …”

Section: Introductionmentioning

confidence: 99%

CO₂Chemisorption and Cyclability Analyses of Lithium Aluminate Polymorphs (α- and β-Li₅AlO₄)

Ávalos-Rendón

Lara

Pfeiffer

2012

Ind. Eng. Chem. Res.

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The α- and β-Li5AlO4 polymorphs were synthesized using a solid-state reaction. The polymorphs were then characterized by X-ray diffraction (XRD), X-ray thermodiffraction (XRTD), and N2 adsorption. To determine the CO2 chemisorption capacity, the lithium aluminate polymorphs were analyzed thermogravimetrically in the presence of a CO2 flux. In addition, a cyclability study was performed on these ceramic materials. Although the results appear very similar for the two phases, α-Li5AlO4 exhibits a better CO2 chemisorption performance. The cyclic performance tests indicate that both materials exhibit a gradually reduced chemisorption capacity after multicycle processes. However, even after many cycles, the chemisorption capacity is considerably high in comparison to other lithium ceramics tested as CO2 absorbents.

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“…The presence of calcite in ancient pottery has been associated with low-temperature firing at approximately 700 °C (Kloužková et al, 2014). However, it is not always clear-cut since silicates generated from clay minerals can selectively absorb carbon dioxide from the atmosphere (Kalinkin et al, 2008(Kalinkin et al, , 2009. On the other hand, it's important to note that the lack of calcite or its minimal presence does not necessarily signify that the ceramic material was fired at temperatures exceeding 700 °C due to the possibility that the original ceramic mixture might not have contained any calcite in the first place.…”

Section: Resultsmentioning

confidence: 99%

Insights into ancient ceramic technology: a comprehensive analysis of mineralogy, chemistry and firing conditions

Mammadov,

Ahadova

2024

RRST

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The intensive integration of Azerbaijan into the global economy, mainly through international gas and oil pipeline construction, has led to significant archaeological research in the past two decades. The construction of the Baku-Tbilisi-Ceyhan oil pipeline (BTC) and the Southern Caucasus Pipeline gas pipeline (SCP) prompted a four-year archaeological fieldwork program, followed by a six-year post-excavation program. The current work applied an interdisciplinary approach using various instrumental methods for studying ancient artifacts found during those projects. The thermogravimetric method and differential thermal analysis were employed to obtain insights into the production technology of the ancient pottery and information about the mineralogy of the ceramic sherds. The complex processes involved in firing the ceramic paste have been studied extensively, and patterns in mass loss ratios during different temperature ranges have been established. In total, 15 samples were investigated, and the thermogravimetric analysis of ceramic shards revealed that the firing temperature of the samples was in the range of 700 °C. XRD analysis confirmed the presence of quartz, feldspar, and clay minerals in the ceramic samples. The presence of calcite and other specific minerals is subject to the origin of the ceramic materials. The results obtained from this multidisciplinary approach provide insights into the firing technology and the origin of the ceramic samples.

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Mechanochemical interaction of alkali metal metasilicates with carbon dioxide: 2. The influence of thermal treatment on the properties of activated samples

Cited by 5 publications

References 5 publications

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

CO₂Chemisorption and Cyclability Analyses of Lithium Aluminate Polymorphs (α- and β-Li₅AlO₄)

Insights into ancient ceramic technology: a comprehensive analysis of mineralogy, chemistry and firing conditions

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Mechanochemical interaction of alkali metal metasilicates with carbon dioxide: 2. The influence of thermal treatment on the properties of activated samples

Cited by 5 publications

References 5 publications

Structural and Ionic Conduction Analyses of the Na2(Zr1–xAlx)O3–x/2 Solid Solution, During the CO2 Chemisorption Process

Structural and Ionic Conduction Analyses of the Na2(Zr1–xAlx)O3–x/2 Solid Solution, During the CO2 Chemisorption Process

CO2Chemisorption and Cyclability Analyses of Lithium Aluminate Polymorphs (α- and β-Li5AlO4)

Insights into ancient ceramic technology: a comprehensive analysis of mineralogy, chemistry and firing conditions

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About

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

Structural and Ionic Conduction Analyses of the Na₂(Zr_1–xAl_x)O_3–x/2 Solid Solution, During the CO₂ Chemisorption Process

CO₂Chemisorption and Cyclability Analyses of Lithium Aluminate Polymorphs (α- and β-Li₅AlO₄)