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Deep eutectic-solvothermal synthesis of nanostructured ceria

Hammond, Oliver S. ; Edler, Karen J. LU orcid ; Bowron, Daniel T. and Torrente-Murciano, Laura (2017) In Nature Communications 8.
Abstract

Ceria is a technologically important material with applications in catalysis, emissions control and solid-oxide fuel cells. Nanostructured ceria becomes profoundly more active due to its enhanced surface area to volume ratio, reactive surface oxygen vacancy concentration and superior oxygen storage capacity. Here we report the synthesis of nanostructured ceria using the green Deep Eutectic Solvent reline, which allows morphology and porosity control in one of the less energy-intensive routes reported to date. Using wide Q-range liquid-phase neutron diffraction, we elucidate the mechanism of reaction at a molecular scale at considerably milder conditions than the conventional hydrothermal synthetic routes. The reline solvent plays the... (More)

Ceria is a technologically important material with applications in catalysis, emissions control and solid-oxide fuel cells. Nanostructured ceria becomes profoundly more active due to its enhanced surface area to volume ratio, reactive surface oxygen vacancy concentration and superior oxygen storage capacity. Here we report the synthesis of nanostructured ceria using the green Deep Eutectic Solvent reline, which allows morphology and porosity control in one of the less energy-intensive routes reported to date. Using wide Q-range liquid-phase neutron diffraction, we elucidate the mechanism of reaction at a molecular scale at considerably milder conditions than the conventional hydrothermal synthetic routes. The reline solvent plays the role of a latent supramolecular catalyst where the increase in reaction rate from solvent-driven pre-organization of the reactants is most significant. This fundamental understanding of deep eutectic-solvothermal methodology will enable future developments in low-temperature synthesis of nanostructured ceria, facilitating its large-scale manufacturing using green, economic, non-toxic solvents.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Nature Communications
volume
8
article number
14150
publisher
Nature Publishing Group
external identifiers
  • pmid:28120829
  • scopus:85010792415
ISSN
2041-1723
DOI
10.1038/ncomms14150
language
English
LU publication?
no
additional info
Publisher Copyright: © 2017 The Author(s).
id
7006c3d2-6289-42e6-8382-acd106352608
date added to LUP
2023-01-18 09:16:17
date last changed
2024-04-18 11:06:14
@article{7006c3d2-6289-42e6-8382-acd106352608,
  abstract     = {{<p>Ceria is a technologically important material with applications in catalysis, emissions control and solid-oxide fuel cells. Nanostructured ceria becomes profoundly more active due to its enhanced surface area to volume ratio, reactive surface oxygen vacancy concentration and superior oxygen storage capacity. Here we report the synthesis of nanostructured ceria using the green Deep Eutectic Solvent reline, which allows morphology and porosity control in one of the less energy-intensive routes reported to date. Using wide Q-range liquid-phase neutron diffraction, we elucidate the mechanism of reaction at a molecular scale at considerably milder conditions than the conventional hydrothermal synthetic routes. The reline solvent plays the role of a latent supramolecular catalyst where the increase in reaction rate from solvent-driven pre-organization of the reactants is most significant. This fundamental understanding of deep eutectic-solvothermal methodology will enable future developments in low-temperature synthesis of nanostructured ceria, facilitating its large-scale manufacturing using green, economic, non-toxic solvents.</p>}},
  author       = {{Hammond, Oliver S. and Edler, Karen J. and Bowron, Daniel T. and Torrente-Murciano, Laura}},
  issn         = {{2041-1723}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Nature Publishing Group}},
  series       = {{Nature Communications}},
  title        = {{Deep eutectic-solvothermal synthesis of nanostructured ceria}},
  url          = {{http://dx.doi.org/10.1038/ncomms14150}},
  doi          = {{10.1038/ncomms14150}},
  volume       = {{8}},
  year         = {{2017}},
}