Synthesis of palladium nanoparticles using continuous flow microreactor

[Display omitted] •Continuous flow microreactor based synthesis of Pd nanoparticles.•At optimum reaction conditions 5nm Pd particles were obtained.•The electrochemical surface area (ECSA) of Pd nanoparticles was 2.6cm2/mg.•Pd nanoparticles size decreases with an increase in concentration of precurso...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2016-06, Vol.498, p.297-304
Main Authors: Sharada, S., Suryawanshi, Prashant L., Kumar P., Rajesh, Gumfekar, Sarang P., Narsaiah, T. Bala, Sonawane, Shirish H.
Format: Article
Language:English
Subjects:
Carbon
Continuous flow
Continuous flow microreactor
Cyclic voltammetry
Electrochemical active surface area
Electrodes
Linear sweep voltammetry
Microreactors
Nanoparticles
Palladium
Palladium nanoparticles
Particle size distribution
Synthesis
Voltammetry
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Summary:[Display omitted] •Continuous flow microreactor based synthesis of Pd nanoparticles.•At optimum reaction conditions 5nm Pd particles were obtained.•The electrochemical surface area (ECSA) of Pd nanoparticles was 2.6cm2/mg.•Pd nanoparticles size decreases with an increase in concentration of precursor and reducing agent.•The average size of Pd nanoparticles increases with increase in flow rate. This study reports on the use of a continuous flow microreactor for the synthesis of palladium (Pd) nanoparticles. The size of Pd nanoparticles could be controlled in the range 5–200nm by varying the flow rate of the solution containing the precursor and reducing agent. TEM analysis showed cubic morphology of the particles. The electrochemical activity and electro-reduction reaction on Pd/carbon electrode were monitored using cyclic voltammetry (CV) and linear sweep voltammetry (LSV), respectively. The surface area of Pd nanocatalyst was determined to be about 2.6cm2/mg using CV data. The open circuit potential (OCP) was found to be 0.77V using LSV measurement.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2016.03.068