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

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

1
 and
1,2,*
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.
Keywords: solid-state synthesis; metathesis; nanoparticles; X-ray diffraction; vibrational spectroscopy solid-state synthesis; metathesis; nanoparticles; X-ray diffraction; vibrational spectroscopy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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