Kees Kolmeijer
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View article: The Potential-Dependent Structure of Pt<sub>3</sub>Ni Alloy Electrocatalysts and Its Effect on Electrocatalytic Activity
The Potential-Dependent Structure of Pt<sub>3</sub>Ni Alloy Electrocatalysts and Its Effect on Electrocatalytic Activity Open
The distribution of elements within alloy nanoparticles is a critical parameter for their electrocatalytic performance. Here, we use the case of a Pt3Ni alloy to show that this elemental distribution can dynamically respond to the applied …
View article: Operando methods for the elucidation of electrolyte effects in electrocatalysis
Operando methods for the elucidation of electrolyte effects in electrocatalysis Open
Catalysis and Surface Chemistry
View article: Scaled‐Up Graphene Growth Through Chemical Vapor Deposition Over Large‐Area Liquid Cu Catalysts
Scaled‐Up Graphene Growth Through Chemical Vapor Deposition Over Large‐Area Liquid Cu Catalysts Open
This study scales up the chemical vapor deposition (CVD) process for graphene growth using CH₄ and H₂ mixtures on large molten Cu substrates using a liquid metal catalyst (LMCat) reactor. In situ optical microscopy and ex situ Raman spectr…
View article: How Temperature Affects the Selectivity of the Electrochemical CO<sub>2</sub> Reduction on Copper
How Temperature Affects the Selectivity of the Electrochemical CO<sub>2</sub> Reduction on Copper Open
Copper is a unique catalyst for the electrochemical CO2 reduction reaction (CO2RR) as it can produce multi-carbon products, such as ethylene and propanol. As practical electrolyzers will likely operate at elevated temperatures, the effect …
View article: Stabilization effects in binary colloidal Cu and Ag nanoparticle electrodes under electrochemical CO<sub>2</sub> reduction conditions
Stabilization effects in binary colloidal Cu and Ag nanoparticle electrodes under electrochemical CO<sub>2</sub> reduction conditions Open
Colloidal Cu and Ag nanoparticles retain their shape during the CO2 reduction reaction (−0.8 V vs. RHE) due to immiscibility of the lattices and synergy at the nanoscale results in enhanced methane and C2 product formation.