Platinum nanoclusters made by gas-diffusion electrocrystallization (GDEx) as electrocatalysts for methanol oxidation

Martinez-Mora, Omar; Leon-Fernandez, Luis F.; Velimirovic, Milica; Vanhaecke, Frank; Tirez, Kristof; Fransaer, Jan; Dominguez-Benetton, Xochitl

doi:10.1039/d3ma00209h

Cited by 3 publications

(2 citation statements)

References 48 publications

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“…The previously described GDEx electrochemical setup was employed to synthesize the Pt-Pd alloy NPs [ 8 , 9 , 10 ]. The setup consisted of an EC Micro Flow Cell (ElectroCell, Tarm, Denmark) with a three-compartment design.…”

Section: Methodsmentioning

confidence: 99%

“…Taking into account these points, we have employed Gas-Diffusion Electrocrystallization (GDEx), an electrochemical technique, to synthesize noble metal NCs. This process utilizes in situ electrochemical reduction reactions, yielding gases which further act as reducing agents for noble metal ions, leading to the formation of small metal nanoclusters (20–30 nm) composed of much smaller primary nanoparticles (2–5 nm) [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Exploring Pt-Pd Alloy Nanoparticle Cluster Formation through Conventional Sizing Techniques and Single-Particle Inductively Coupled Plasma—Sector Field Mass Spectrometry

Martinez-Mora,

Tirez,

Beutels

et al. 2023

Nanomaterials

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Accurate characterization of Pt-Pd alloy nanoparticle clusters (NCs) is crucial for understanding their synthesis using Gas-Diffusion Electrocrystallization (GDEx). In this study, we propose a comprehensive approach that integrates conventional sizing techniques—scanning electron microscopy (SEM) and dynamic light scattering (DLS)—with innovative single-particle inductively coupled plasma—sector field mass spectrometry (spICP-SFMS) to investigate Pt-Pd alloy NC formation. SEM and DLS provide insights into morphology and hydrodynamic sizes, while spICP-SFMS elucidates the particle size and distribution of Pt-Pd alloy NCs, offering rapid and orthogonal characterization. The spICP-SFMS approach presented enables detailed characterization of Pt-Pd alloy NCs, which was previously challenging due to the absence of multi-element capabilities in conventional spICP-MS systems. This innovative approach not only enhances our understanding of bimetallic nanoparticle synthesis, but also paves the way for tailoring these materials for specific applications, marking a significant advancement in the field of nanomaterial science.

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Section: Methodsmentioning

confidence: 99%