Calcium carbonate phase analysis using XRD and FT-Raman spectroscopy

Kontoyannis, Christos G.; Vagenas, N

doi:10.1039/a908609i

Cited by 526 publications

(297 citation statements)

References 12 publications

(20 reference statements)

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“…The pristine spectrum has five fundamental bands located at ∼152, 280, 713, 1085 and 1485 cm −1 along with extra bands located at 1118, 1203, 1291, 1382, 1542, 1659, 1759 and 1841 cm −1 . These fundamental bands are in good agreement with those reported in the literature [13][14][15][16]. From factor group analysis of calcite, internal A 1g mode (υ 1 , symmetric stretch) of the carbonate anion located at ∼1085 cm −1 is the strongest feature.…”

Section: Resultssupporting

confidence: 90%

Swift heavy ion irradiation induced phase transformation in calcite single crystals

Nagabhushana

Lakshminarasappa

et al. 2009

Solid State Communications

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a b s t r a c tIon irradiation induced phase transformation in calcite single crystals have been studied by means of Raman and infrared spectroscopy using 120 MeV Au 9+ ions. The observed bands have been assigned according to group theory analysis. For higher fluence of 5 × 10 12 ion/cm 2 , an extra peak on either side of the 713 cm −1 peak and an increase in the intensity of 1085 cm −1 peak were observed in Raman studies. FTIR spectra exhibit extra absorption bands at 674, 1589 cm −1 and enhancement in bands at 2340 and 2374 cm −1 was observed. This might be due to the phase transformation from calcite to vaterite. The damage cross section (σ ) for all the Raman and FTIR active modes was determined. The increase of FWHM, shift in peak positions and appearance of new peaks indicated that calcite phase is converted into vaterite.

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Section: Resultssupporting

confidence: 90%

Swift heavy ion irradiation induced phase transformation in calcite single crystals

Nagabhushana

Lakshminarasappa

et al. 2009

Solid State Communications

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“…[12][13][14][15][16] However, a complete characterization of all spectral peaks, in terms of both frequency and intensity, is rarely performed; the attribution of spectral features to specific modes remains a hard task, too. Previous simulations on the vibrational properties of carbonates have mainly focused on methodological aspects, 17 on the effect of cation substitutions on the infrared spectra, 18 and on the role of the vibrational contributions to the relative stability of polymorphs.…”

mentioning

confidence: 99%

The Raman spectrum of CaCO3 polymorphs calcite and aragonite: A combined experimental and computational study

Pierre

Carteret

Maschio

et al. 2014

The Journal of Chemical Physics

139

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“…A lattice mode peak (at  283 cm 1 ) and the strongest  1 peak (at  1085 cm 1 ) were selected for analysis. 48 The calcite/Asp crystals showed rapid changes in the peak shift with the amount Asp occluded up to 1 mol%, before reaching a plateau, where this effect was greater for the lattice mode peak (4 cm 1 ) than the 1 vibration peak (1.5 cm 1 ) ( Figure S9). The peak broadening showed a similar behavior, although the lattice mode peak continued to show 8 a gradual increase in width at higher occlusion levels.…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 98%

Rapid Screening of Calcium Carbonate Precipitation in the Presence of Amino Acids: Kinetics, Structure, and Composition

Green

Ihli

Kim

et al. 2016

Crystal Growth & Design

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Soluble additives are widely used to control crystallization, leading to definition of properties including size, morphology, polymorph and composition. However, due to the number of potential variables in these experiments, it is typically extremely difficult to identify reaction conditions -as defined by solution compositions, temperatures and combinations of additives -that give the desired product. This article introduces a high throughput methodology which addresses this challenge and enables the streamlined preparation and characterization of crystalline materials. Using calcium carbonate precipitated in the presence of selected amino acids as a model system, we use well plates as micro volume crystallizers, and an accurate liquid handling pipetting workstation for sample preparation. Following changes in the solution turbidity using a plate reader delivers information about the reaction kinetics, while semi automated scanning electron microscopy, powder XRD and Raman microscopy provide structural information about the library of crystalline products. Of particular interest for the CaCO3 system is the development of fluorescence based protocols which rapidly evaluate the amounts of the additives occluded within the crystals. Together, these methods provide a strategy for efficiently screening a broad reaction space, where this can both accelerate the ability to generate crystalline materials with target properties, and develop our understanding of additive directed crystallization.

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Calcium carbonate phase analysis using XRD and FT-Raman spectroscopy

Cited by 526 publications

References 12 publications

Swift heavy ion irradiation induced phase transformation in calcite single crystals

Swift heavy ion irradiation induced phase transformation in calcite single crystals

The Raman spectrum of CaCO3 polymorphs calcite and aragonite: A combined experimental and computational study

Rapid Screening of Calcium Carbonate Precipitation in the Presence of Amino Acids: Kinetics, Structure, and Composition

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