Issue 43, 2018, Issue in Progress

Anisotropic growth of gas–liquid precipitated ceria mesocrystals to wires several micrometers in length

Abstract

Ceria (CeO2) wires with lengths of 6 μm and diameters of tens of nanometers are fabricated through the anisotropic growth of mesocrystals. In the gas–liquid precipitation process, an aqueous Ce(NO3)3 solution is used as a starting material and NH3 gas is used to induce CeO2 precipitation at the gas–liquid interface. CeO2 mesocrystals, formed by this process at 60 °C, grow in the direction of 〈011〉 into micrometer length wires exposing {001} and {011} on their side walls. It is shown that the initial pH of the starting material solution is a key parameter to attain anisotropic growth of the CeO2 mesocrystals. We thus propose the formation mechanism of micrometer length-CeO2 wires from mesocrystals.

Graphical abstract: Anisotropic growth of gas–liquid precipitated ceria mesocrystals to wires several micrometers in length

Article information

Article type
Paper
Submitted
22 Jun 2018
Accepted
27 Jun 2018
First published
06 Jul 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 24370-24375

Anisotropic growth of gas–liquid precipitated ceria mesocrystals to wires several micrometers in length

Y. Kubota, T. Kishi, T. Yano and N. Matsushita, RSC Adv., 2018, 8, 24370 DOI: 10.1039/C8RA05362F

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