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Nanomaterials 2013, 3(3), 317-324; doi:10.3390/nano3030317

A Strategy for Hydroxide Exclusion in Nanocrystalline Solid-State Metathesis Products

1
Department of Chemistry, Memorial University of Newfoundland, St. John's, NL A1B3X7, Canada
2
Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, NL A1B3X7, Canada
*
Author to whom correspondence should be addressed.
Received: 23 May 2013 / Revised: 9 June 2013 / Accepted: 18 June 2013 / Published: 24 June 2013
(This article belongs to the Special Issue New Developments in Nanomaterial Analysis)
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Abstract

We demonstrate a simple strategy to either prevent or enhance hydroxide incorporation in nanocrystalline solid-state metathesis reaction products prepared in ambient environments. As an example, we show that ZnCO3 (smithsonite) or Zn5(CO3)2(OH)6 (hydrozincite) forms extremely rapidly, in less than two minutes, to form crystalline domains of 11 ±  2 nm and 6 ± 2 nm, respectively. The phase selectivity between these nanocrystalline products is dominated by the alkalinity of the hydrated precursor salts, which may in turn affect the availability of carbon dioxide during the reaction. Thus, unlike traditional aqueous precipitation reactions, our solid-state method offers a way to produce hydroxide-free, nanocrystalline products without active pH control. View Full-Text
Keywords: solid-state synthesis; metathesis; nanoparticles; X-ray diffraction; vibrational spectroscopy solid-state synthesis; metathesis; nanoparticles; X-ray diffraction; vibrational spectroscopy
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Cheng, J.; Poduska, K.M. A Strategy for Hydroxide Exclusion in Nanocrystalline Solid-State Metathesis Products. Nanomaterials 2013, 3, 317-324.

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