Abstract
The synthesis of supported bimetallic nanoparticles with well-defined size and compositional parameters has long been a challenge. Although batch colloidal methods are commonly used to pre-form metal nanoparticles with the desired size-range in solution, inhomogeneous mixing of the reactant solutions often leads to variations in size, structure and composition from batch-to-batch and even particle-to-particle. Here we describe a millifluidic approach for the production of oxide supported monometallic Au and bimetallic AuPd nanoparticles in a continuous fashion. This optimised method enables the production of nanoparticles with smaller mean sizes, tighter particle size distributions and a more uniform particle-to-particle chemical composition as compared to the conventional batch procedure. In addition, we describe a facile procedure to prepare bimetallic Au@Pd core-shell nanoparticles in continuous flow starting from solutions of the metal precursors. Moreover, the relative ease of scalability of this technique makes the proposed methodology appealing not only for small-scale laboratory purposes, but also for the industrial-scale production of supported metal nanoparticles.
| Original language | English |
|---|---|
| Pages (from-to) | 8247-8259 |
| Number of pages | 13 |
| Journal | Nanoscale |
| Volume | 11 |
| Issue number | 17 |
| Early online date | 9 Apr 2019 |
| DOIs | |
| Publication status | Published - 7 May 2019 |
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Synthesis of highly uniform and composition-controlled gold-palladium supported nanoparticles in continuous flow. / Cattaneo, Stefano; Althahban, Sultan; Freakley, Simon J.; Sankar, Meenakshisundaram; Davies, Thomas; He, Qian; Dimitratos, Nikolaos; Kiely, Christopher J.; Hutchings, Graham J.
In: Nanoscale, Vol. 11, No. 17, 07.05.2019, p. 8247-8259.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis of highly uniform and composition-controlled gold-palladium supported nanoparticles in continuous flow
AU - Cattaneo, Stefano
AU - Althahban, Sultan
AU - Freakley, Simon J.
AU - Sankar, Meenakshisundaram
AU - Davies, Thomas
AU - He, Qian
AU - Dimitratos, Nikolaos
AU - Kiely, Christopher J.
AU - Hutchings, Graham J.
PY - 2019/5/7
Y1 - 2019/5/7
N2 - The synthesis of supported bimetallic nanoparticles with well-defined size and compositional parameters has long been a challenge. Although batch colloidal methods are commonly used to pre-form metal nanoparticles with the desired size-range in solution, inhomogeneous mixing of the reactant solutions often leads to variations in size, structure and composition from batch-to-batch and even particle-to-particle. Here we describe a millifluidic approach for the production of oxide supported monometallic Au and bimetallic AuPd nanoparticles in a continuous fashion. This optimised method enables the production of nanoparticles with smaller mean sizes, tighter particle size distributions and a more uniform particle-to-particle chemical composition as compared to the conventional batch procedure. In addition, we describe a facile procedure to prepare bimetallic Au@Pd core-shell nanoparticles in continuous flow starting from solutions of the metal precursors. Moreover, the relative ease of scalability of this technique makes the proposed methodology appealing not only for small-scale laboratory purposes, but also for the industrial-scale production of supported metal nanoparticles.
AB - The synthesis of supported bimetallic nanoparticles with well-defined size and compositional parameters has long been a challenge. Although batch colloidal methods are commonly used to pre-form metal nanoparticles with the desired size-range in solution, inhomogeneous mixing of the reactant solutions often leads to variations in size, structure and composition from batch-to-batch and even particle-to-particle. Here we describe a millifluidic approach for the production of oxide supported monometallic Au and bimetallic AuPd nanoparticles in a continuous fashion. This optimised method enables the production of nanoparticles with smaller mean sizes, tighter particle size distributions and a more uniform particle-to-particle chemical composition as compared to the conventional batch procedure. In addition, we describe a facile procedure to prepare bimetallic Au@Pd core-shell nanoparticles in continuous flow starting from solutions of the metal precursors. Moreover, the relative ease of scalability of this technique makes the proposed methodology appealing not only for small-scale laboratory purposes, but also for the industrial-scale production of supported metal nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=85064951241&partnerID=8YFLogxK
U2 - 10.1039/c8nr09917k
DO - 10.1039/c8nr09917k
M3 - Article
VL - 11
SP - 8247
EP - 8259
JO - Nanoscale
JF - Nanoscale
SN - 2040-3364
IS - 17
ER -