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Local Strain Tuning in Cu Nanoparticles through Glucose-Mediated Synthesis

Girotto, Gustavo Z LU orcid ; Dos Santos, Kaue G G ; Martins, Ruan M ; Vogt, Marco A H ; Montoro, Silvia ; Bonetto, Fernando ; Escudero, Carlos ; Muniz, André R and Bernardi, Fabiano (2025) In ACS Omega 10(40). p.46624-46633
Abstract

Cu nanoparticles are widely used in different fields. Controlling the Cu oxidation state and the local strain is fundamental for optimizing its efficiency in processes, such as catalytic reactions. In this work, Cu nanoparticles were synthesized by using glucose as a reducing agent. Different synthesis conditions led to nanoparticles with a tunable local strain and Cu(0)/Cu
2O ratio. The amounts of Cu(0) and Cu
2O are directly related to the local strain in the nanoparticles. The lower amount of Cu(0) gives a longer Cu-Cu distance, and the lower amount of Cu
2O is associated with longer Cu-O distances. It can be attributed to the creation of interfacial strain at the Cu(0)/Cu
2O boundaries, as demonstrated by... (More)

Cu nanoparticles are widely used in different fields. Controlling the Cu oxidation state and the local strain is fundamental for optimizing its efficiency in processes, such as catalytic reactions. In this work, Cu nanoparticles were synthesized by using glucose as a reducing agent. Different synthesis conditions led to nanoparticles with a tunable local strain and Cu(0)/Cu
2O ratio. The amounts of Cu(0) and Cu
2O are directly related to the local strain in the nanoparticles. The lower amount of Cu(0) gives a longer Cu-Cu distance, and the lower amount of Cu
2O is associated with longer Cu-O distances. It can be attributed to the creation of interfacial strain at the Cu(0)/Cu
2O boundaries, as demonstrated by molecular dynamics simulations. Furthermore, the Cu(0) phase is stable at least up to two years in the air due to the presence of gluconate at the surface. This study shows that interfacial strain can be manipulated without the addition of other elements through a facile route.

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author
; ; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
ACS Omega
volume
10
issue
40
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:41114187
  • scopus:105018685477
ISSN
2470-1343
DOI
10.1021/acsomega.5c03609
language
English
LU publication?
no
additional info
© 2025 The Authors. Published by American Chemical Society.
id
3cafa3e2-2743-4af8-a8cd-ce317b0443bb
date added to LUP
2025-10-30 16:33:55
date last changed
2025-11-18 03:55:35
@article{3cafa3e2-2743-4af8-a8cd-ce317b0443bb,
  abstract     = {{<p>Cu nanoparticles are widely used in different fields. Controlling the Cu oxidation state and the local strain is fundamental for optimizing its efficiency in processes, such as catalytic reactions. In this work, Cu nanoparticles were synthesized by using glucose as a reducing agent. Different synthesis conditions led to nanoparticles with a tunable local strain and Cu(0)/Cu<br>
 2O ratio. The amounts of Cu(0) and Cu<br>
 2O are directly related to the local strain in the nanoparticles. The lower amount of Cu(0) gives a longer Cu-Cu distance, and the lower amount of Cu<br>
 2O is associated with longer Cu-O distances. It can be attributed to the creation of interfacial strain at the Cu(0)/Cu<br>
 2O boundaries, as demonstrated by molecular dynamics simulations. Furthermore, the Cu(0) phase is stable at least up to two years in the air due to the presence of gluconate at the surface. This study shows that interfacial strain can be manipulated without the addition of other elements through a facile route.<br>
 </p>}},
  author       = {{Girotto, Gustavo Z and Dos Santos, Kaue G G and Martins, Ruan M and Vogt, Marco A H and Montoro, Silvia and Bonetto, Fernando and Escudero, Carlos and Muniz, André R and Bernardi, Fabiano}},
  issn         = {{2470-1343}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{40}},
  pages        = {{46624--46633}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Omega}},
  title        = {{Local Strain Tuning in Cu Nanoparticles through Glucose-Mediated Synthesis}},
  url          = {{http://dx.doi.org/10.1021/acsomega.5c03609}},
  doi          = {{10.1021/acsomega.5c03609}},
  volume       = {{10}},
  year         = {{2025}},
}