Nucleation Controlled in the Aggregative Growth of Strontium Carbonate Microcrystals

Abstract

The in fluence of PABA(p-aminobenzoicacid) and HEEDTA (N-(2-hydro xyethyl) ethylenediamine-N, N, Ntriacetic acid) on Strontionite crystals via simp le CO 2 d iffusion route is described. The results showed that the experimental parameters have great influence on the shape evolution of products. The presence of templating species and varied pH are the key prima ry conditions for the g rowth morphology. Spike like crystals self assembled in the form o f flo wer like and cauliflower shaped cluster with high crystallin ity were identified. The crystals undergo an interesting morphology changes and have been characterized by X-ray d iffraction (XRD), Scanning Electron M icroscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) techniques.

Structural and impedance spectroscopy characteristics of BaCO3/BaSnO3/SnO2 nanocomposite: observation of a non-monotonic relaxation behavior

“…The band centered at 3425 cm À1 corresponds to the n(OH) stretching vibration of the surface adsorbed water molecules. 30,31…”

Deciphering the Interaction of Single-Phase La0.3Sr0.7Fe0.7Cr0.3O3-δ with CO2/CO Environments for Application in Reversible Solid Oxide Cells

“…The band at 1472 cm −1 corresponds to the asymmetric stretching mode of the C−O bond, while the sharp bands at 858 and 704 cm −1 represent the in-plane and out-of-plane bending of CO 3 2− , respectively. 37 Figure 2d shows that bands corresponding to SrCO 3 are not observed for either the as-prepared LSFCr powder or the LSFCr powder after exposure to 100% CO 2 at 30−800 °C, with a 24 h dwell time at 800 °C. However, at 1470 cm −1 , an asymmetric stretching band, corresponding to the C−O bond, was observed (Figure 2d(iii)).…”

Micro-Ikebana by Biomimetic Crystallization of Alkaline Earth Carbonates

“…We did not carry out x-ray crystallography in order to determine the crystal structure of the formed carbonates, because it already has been reported that even large organic additives, such as p-aminobenzioc acid, or N-(2-hydroxyethyl)ethylenediamine-N, N, N-triacetic acid did not change the crystal structure, and always the most stable orthorhombic strontionite [8].…”

“…Inorganic additives such as SiO 2 can also be used [7], and we have reported on the fabrication of dendritic, flower-like, and coral-like microcrystals in a SrCl 2 * This paper was presented at the 8th Asian Conference on Nanoscience and Nanotechnology (AsiaNANO 2016), Sapporo Convention Center, Sapporo, Japan, October 10-13, 2016. † Corresponding author: kart@photon.chitose.ac.jp ‡ Present address: Mitsubishi Polyester GmbH, Mainz, Germany / SiO 2 system [8]. In the present paper, we further focus on the control of the crystalline form by changing the conditions of crystal growth.…”