Facile synthesis of SrCO3 nanostructures in methanol/water solution without additives

Abstract

Highly dispersive strontium carbonate (SrCO3) nanostructures with uniform dumbbell, ellipsoid, and rod-like morphologies were synthesized in methanol solution without any additives. These SrCO3 were characterized by X-ray diffraction, field emission scanning electron microscopy, and N2 adsorption-desorption. The results showed that the reaction temperature and the methanol/water ratio had important effects on the morphologies of SrCO3 particles. The dumbbell-like SrCO3 exhibited a Broader-Emmett-Teller surface area of 14.9 m2 g−1 and an average pore size of about 32 nm with narrow pore size distribution. The formation mechanism of the SrCO3 crystal was preliminary presented.

Direct conversion of alkaline earth metal hydroxides and sulfates to carbonates in ammonia solutions

“…The SEM image (Fig. 5) showed that the shapes of prepared strontium carbonate particles were rod-like, as also found for the strontium carbonates synthesized in the literature studies (Li et al, 2012;Zhang et al, 2017). It could also be seen from Fig.…”

Facile Synthesis of SrCO3-Sr(OH)2/PPy Nanocomposite with Enhanced Photocatalytic Activity under Visible Light

“…In the search to find a cheap and straight route to obtain the SrCO 3 phase, it was chose to dry Sr(OH) 2 at ambient atmosphere to take advantage of the reaction with CO 2 present in the air [ 42 , 43 , 44 , 45 , 46 , 47 ].…”

“…Taking into account some reports about SrCO 3 -Sr(OH) 2 composite as background [ 42 , 43 , 44 , 45 , 46 , 47 ], and due the SrCO 3 -Sr(OH) 2 /PPy nanocomposite has not been studied as a photocatalyst candidate, this manuscript describes a modified strategy for the preparation of SrCO 3 -Sr(OH) 2 nanocomposite, followed by coating with the semiconducting polypyrrole (PPy) to increase its photoactivity in the visible light range. Both SrCO 3 -Sr(OH) 2 and SrCO 3 -Sr(OH) 2 /PPy nanocomposites were tested for photodegradation of MB dye under visible light irradiation.…”

α‐MnO2‐Sensitized SrCO3−Sr(OH)2 Supported on Two‐Dimensional Carbon Composites as Stable Electrode Material for Asymmetric Supercapacitor and Oxygen Evolution Catalysis

“…[16][17][18][19] Alternatively, alkaline earth metallic strontium (Sr) based materials such as Sr(OH) 2 , SrS, SrPO 4 and SrCO 3 have given much attention due to their excellent electrical conductivity, low cost and ease to prepare. [20][21][22][23] Mahmood-Ul-Hassan et al have prepared graphene oxide (GO) based SrS nanorods to exhibit excellent specific capacitance of 1831.14 F/g at 3 mA/cm 2 current density. The presence of GO thin film has enhanced the electrochemical surface area and provides better electrical conductivity to charge storage property.…”

“…Among the numerous electrode materials reported till date, the transition metal oxide/hydroxide like MnO 2 , NiO 2 , RuO 2 , SnO 2 , Co 3 O 4 , Ni(OH) 2 , Co(OH) 2 etc are mainly offering reversible redox property due to the tunable electrochemical reaction [16–19] . Alternatively, alkaline earth metallic strontium (Sr) based materials such as Sr(OH) 2 , SrS, SrPO 4 and SrCO 3 have given much attention due to their excellent electrical conductivity, low cost and ease to prepare [20–23] . Mahmood‐Ul‐Hassan et al .…”