Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds

Abstract Morphology-controlled strontianite nanostructures have attracted interest in various fields, such as electrocatalyst and photocatalysts. Basic additives in aqueous strontium solutions is commonly used in controlling strontianite nanostructures. Here, we show that trace water also serves an...

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Autores principales:	Junsung Hong, Su Jeong Heo, Prabhakar Singh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ac05f7f994b2426c81b5c0d53f6f9697
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spelling	oai:doaj.org-article:ac05f7f994b2426c81b5c0d53f6f96972021-12-02T13:30:34ZWater mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds10.1038/s41598-021-82651-02045-2322https://doaj.org/article/ac05f7f994b2426c81b5c0d53f6f96972021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82651-0https://doaj.org/toc/2045-2322Abstract Morphology-controlled strontianite nanostructures have attracted interest in various fields, such as electrocatalyst and photocatalysts. Basic additives in aqueous strontium solutions is commonly used in controlling strontianite nanostructures. Here, we show that trace water also serves an important role in forming and structuring vertically oriented strontianite nanorod arrays on strontium compounds. Using in situ Raman spectroscopy, we monitored the structural evolution from hydrated strontium to strontianite nanorods, demonstrating the epitaxial growth by vapor–liquid–solid mechanism. Water molecules cause not only the exsolution of Sr liquid droplets on the surface but also the uptake of airborne CO2 followed by its ionization to CO3 2−. The existence of intermediate SrHO+–OCO2 2− phase indicates the interaction of CO3 2− with SrOH+ in Sr(OH)x(H2O)y cluster to orient strontianite crystals. X-ray diffraction simulation and transmission electron microscopy identify the preferred-orientation plane of the 1D nanostructures as the (002) plane, i.e., the growth along the c-axis. The anisotropic growth habit is found to be affected by the kinetics of carbonation. This study paves the way for designing and developing 1D architecture of alkaline earth metal carbonates by a simple method without external additives at room temperature.Junsung HongSu Jeong HeoPrabhakar SinghNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junsung Hong Su Jeong Heo Prabhakar Singh Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
description	Abstract Morphology-controlled strontianite nanostructures have attracted interest in various fields, such as electrocatalyst and photocatalysts. Basic additives in aqueous strontium solutions is commonly used in controlling strontianite nanostructures. Here, we show that trace water also serves an important role in forming and structuring vertically oriented strontianite nanorod arrays on strontium compounds. Using in situ Raman spectroscopy, we monitored the structural evolution from hydrated strontium to strontianite nanorods, demonstrating the epitaxial growth by vapor–liquid–solid mechanism. Water molecules cause not only the exsolution of Sr liquid droplets on the surface but also the uptake of airborne CO2 followed by its ionization to CO3 2−. The existence of intermediate SrHO+–OCO2 2− phase indicates the interaction of CO3 2− with SrOH+ in Sr(OH)x(H2O)y cluster to orient strontianite crystals. X-ray diffraction simulation and transmission electron microscopy identify the preferred-orientation plane of the 1D nanostructures as the (002) plane, i.e., the growth along the c-axis. The anisotropic growth habit is found to be affected by the kinetics of carbonation. This study paves the way for designing and developing 1D architecture of alkaline earth metal carbonates by a simple method without external additives at room temperature.
format	article
author	Junsung Hong Su Jeong Heo Prabhakar Singh
author_facet	Junsung Hong Su Jeong Heo Prabhakar Singh
author_sort	Junsung Hong
title	Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
title_short	Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
title_full	Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
title_fullStr	Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
title_full_unstemmed	Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds
title_sort	water mediated growth of oriented single crystalline srco3 nanorod arrays on strontium compounds
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ac05f7f994b2426c81b5c0d53f6f9697
work_keys_str_mv	AT junsunghong watermediatedgrowthoforientedsinglecrystallinesrco3nanorodarraysonstrontiumcompounds AT sujeongheo watermediatedgrowthoforientedsinglecrystallinesrco3nanorodarraysonstrontiumcompounds AT prabhakarsingh watermediatedgrowthoforientedsinglecrystallinesrco3nanorodarraysonstrontiumcompounds
_version_	1718392934962823168

Water mediated growth of oriented single crystalline SrCO3 nanorod arrays on strontium compounds

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