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The effect of heating on the morphology of crystalline neodymium hydroxycarbonate, NdCO3OH

Published online by Cambridge University Press:  05 July 2018

Beatriz Vallina ,
Juan Diego Rodriguez-Blanco ,
Jesus A. Blanco  and
Liane G. Benning
Beatriz Vallina*
Affiliation:
School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
Juan Diego Rodriguez-Blanco
Affiliation:
School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK Nano-Science Center, Department of Chemistry, University of Copenhagen H.C Oersted Institute, C Bygn, Universitetsparken 5, DK 2100 Copenhagen, Denmark
Jesus A. Blanco
Affiliation:
Departamento de Física, Universidad de Oviedo, Oviedo, E-33007, Spain
Liane G. Benning*
Affiliation:
School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK GFZ German Research Centre for Geosciences, Helmholz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany
*
* E-mail: [email protected]
* E-mail: [email protected]
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Abstract

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The crystallization of hexagonal NdCO3OH through hydrothermal synthesis carried out at slow (reaching the desired temperature within 100 min) and quick (50 min) rates of heating but at variable temperatures (165–220ºC) are reported here. The formation of NdCO3OH occurs via the crystallization of an amorphous precursor. Both the precursor and the crystalline NdCO3OH were characterized by X-ray diffraction, infrared spectroscopy and high-resolution electron microscopy. The mechanism of crystallization is very dependent on the experimental conditions (rate of heating and temperature treatment). With increasing temperature, the habit of NdCO3OH crystals changes progressively to more complex spherulitic or dendritic morphologies. The development of these crystal morphologies is suggested here to be controlled by the level at which supersaturation was reached in the aqueous solution during the breakdown of the amorphous precursor. At the highest temperature (220ºC) and during rapid heating (50 min) the amorphous precursor breaks down rapidly and the fast supersaturation promotes spherulitic growth. At the lowest temperature (165ºC) and slow heating (100 min), however, the supersaturation levels are approached more slowly than required for spherulitic growth, and thus more regular, previously unseen, triangular pyramidal shapes form.

Keywords

rare earthsneodymiumcarbonatecrystallizationspherulitic growthhydroxylbastnäsite
Type
Research Article
Information
Mineralogical Magazine , Volume 78 , Issue 6 , November 2014 , pp. 1391 - 1397
Creative Commons
Creative Common License - CCCreative Common License - BY
© [2014] The Mineralogical Society of Great Britain and Ireland. This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2014

References

Adachi, G.Y. and Imanaka, N. (1998) The binary rare earth oxides. Chemical Reviews, 98, 1470–1514.Google Scholar
Beck, R. and Andreassen, J. (2010) Spherulitic growth of calcium carbonate. Crystal Growth & Design, 10, 2934–2947.CrossRefGoogle Scholar
Bots, P., Benning, L.G., Rodriguez-Blanco, J.D., Roncal-Herrero, T. and Shaw, S. (2012) Crystal Growth and Design, 12, 3806–3814.CrossRefGoogle Scholar
Castor, S.B. and Hedrick, J.B. (2006) Rare earth elements. Pp. 769–792 in: Industrial Minerals and Rocks (J. Elzea Kogel, N.D. Trivedi and J.M. Barker, editors). Society for Mining, Metallurgy and Exploration,, Littleton, Colorado, USA.Google Scholar
Chakhmouradian, A.R. and Wall, F. (2012) Rare earth elements: minerals, mines, magnets (and more). Elements, 8, 3–340.CrossRefGoogle Scholar
Christensen, A.N. (1973) Hydrothermal preparation of rare earth hydroxy-carbonates. The crystal structure of NdOHCO3 . Acta Chemical Scandinavica, 27, 2973–2982.CrossRefGoogle Scholar
Essington, M.E. and Mattigod, S.V. (1985) Lanthanide solid phase speciation. Solid Science Society of America Journal, 49, 1387–1393.CrossRefGoogle Scholar
Gai, S., Li, C., Yang, P. and Lin, J. (2014) Recent progress in rare earth micro/nanocrystals: soft chemical synthesis luminescent properties, and biomedical applications. Chemical Reviews, 114, 2343–2389.CrossRefGoogle ScholarPubMed
Hinode, H., Sharma, R. and Eyring, L.A. (1990) Study of the decomposition of neodymium hydroxy carbonate and neodymium carbonate hydrate. Journal of Solid State Chemistry, 84, 102–117.CrossRefGoogle Scholar
Li, R., Li, L., Wang, J., Li, Z., Liu, Q., Yu, J., Zhang, X., Ji, H., Zhang, M., Wei, H. and Liu, L. (2013) Influence of morphology and Yb3 concentration on blue and red luminescence of uniform cube-like Y2O3:Yb3/Tm3 particles. Materials Chemistry and Physics, 141, 990–996.CrossRefGoogle Scholar
Mackenzie, F.T. and Andersson, A.J. (2013) The marine carbon system and ocean acidification during Phanerozoic time. Geochemical Perspectives, 2, 1–227.CrossRefGoogle Scholar
Michiba, K., Tahara, T., Nakai, I., Miyawaki, R. and Matsubara, S. (2011) Crystal structure of hexagonal RE(CO3)OH. Zeitschrift für Kristallographie, 226, 518–530.CrossRefGoogle Scholar
Miyawaki, R. and Nakai, I. (1996) Crystal chemical aspects of rare earth minerals. Pp. 21–37 in: Rare Earth Minerals: Chemistry, Origin and Ore Deposits. (A.P. Jones, F. Wall and C.T. Williams, editors). Chapman & Hall, London, 372 pp.Google Scholar
Parkhurst, D.L. (1995) User’s guide to PHREEQC – A computer program for speciation, reaction-parth, advective-transport, and inverse geochemical calculations.. U.S. Geological Survey Water-Resources Investigations, Report 95-4227.Google Scholar
Plummer, N.L. and Busenberg, E. (1982) The solubilities of calcite argonite and vaterite in CO2-H2O solutions between 0 and 90ºC and an evaluation of the aqueous model for the system CaCO3-CO2-H2O. Geochimica et Cosmochimica Acta, 46, 1011–1040.CrossRefGoogle Scholar
Radha, A.V., Forbes, T.Z., Killian, C.E., Gilbert, P.U.P.A. and Navrotsky, A. (2010) Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate. Proceedings of the National Academy of Science of the United States of America, 107, 16348–16443.CrossRefGoogle ScholarPubMed
Rodriguez-Blanco, J.D., Shaw, S., Bots, P., Roncal- Herrero, T. and Benning, L.G. (2014) The role of Mg in the crystallization of monohydrocalcite. Geochimica et Cosmochimica Acta, 127, 204–220.CrossRefGoogle Scholar
Rodriguez-Blanco, J.D., Shaw, S. and Benning, L.G. (2011) The kinetics and mechanisms of amorphous calcium carbonate (ACC) crystallization to calcite via vaterite. Nanoscale, 3, 265–271.CrossRefGoogle ScholarPubMed
Rodriguez-Blanco, J.D., Shaw, S. and Benning, L.G. (2008) How to make stable ACC: protocol and structural characterization. Mineralogical Magazine, 72, 283–286.CrossRefGoogle Scholar
Sadhu, A., Singh, S.P. and Bhattacharyya, S. (2014) Direct correlation of the morphologies of metal carbonates oxycarbonates, and oxides synthesized by dry autoclaving to the intrinsic properties of the metals. Crystal Growth and Design, 14, 4050–4067.CrossRefGoogle Scholar
Saharay, M., Yazaydin, A.O. and Kirkpatrick, R.J. (2013) Dehydration-induced amorphous phases of calcium carbonate. Journal of Physical Chemistry B, 117, 328–36.CrossRefGoogle ScholarPubMed
Sand, K.K., Rodriguez-Blanco, J.D., Makovicky, E., Benning, L.G. and StiPp. S.L. (2012) Crystallization of CaCO3 in water/alcohol mixtures: spherulitic growth, polymorph stabilization and morphology change. Crystal Growth and Design, 12, 842–853.CrossRefGoogle Scholar
Shang, X., Lu, W., Yue, B., Zhang, L., Ni, J. and Feng, Y. (2009) Synthesis of three-dimensional hierarchical dendrites of NdOHCO3 via a facile hydrothermal method. Crystal Growth and Design, 9, 1415–1420.CrossRefGoogle Scholar
Shtukenberg, A.G., Punin, Y.O., Gunn, E. and Kahr, B. (2012) Spherulites. Chemical Reviews, 112, 1805–1838.CrossRefGoogle ScholarPubMed
Tahara, T., Nakai, I., Miyawaki, R. and Matsubara, S. (2007) Crystal chemistry of RE(CO3)OH. Zeitschrift für Kristallographie, 222, 326–34.CrossRefGoogle Scholar
Teshima, K., Sakurai, M., Lee, S., Yubuta, K., Ito, S., Suzuki, T., Shishido, T., Endo, M. and Oishi, S. (2009) Morphologically controlled fibrous spherulites of an apatite precursor biocrystal. Crystal Growth and Design, 9, 650–652.CrossRefGoogle Scholar
Vallina, B., Rodriguez-Blanco, J.D., Brown, A.P., Blanco, J.A. and Benning, L.G. (2013) Amorphous dysprosium carbonate: characterization, stability and crystallization pathways. Journal of Nanoparticle Research, 15, 1438–1450.CrossRefGoogle Scholar
Vallina, B., Rodriguez-Blanco, J.D., Brown, A.P., Blanco, J.A. and Benning, L.G. (2014) Enhanced magnetic coercivity of a-Fe2O3 obtained from carbonated 2-line ferrihydrite. Journal of Nanoparticle Research, 16, 2322:CrossRefGoogle Scholar
Zhongxin, Y., Ge, B. and Chenyu, W. (1992) Geological features and genesis of the Bayan Obo REE ore deposit, Inner Mongolia, China. Applied Geochemistry, 7, 429–442.CrossRefGoogle Scholar