On-chip electrocatalytic NO sensing using ruthenium oxide nanorods
RuOx electrodes made from ruthenium oxide nanorods outperform bare platinum for amperometric NO sensing, with a lower onset potential and higher current density. Validated for organ-on-chip use by detecting micromolar NO from live endothelial cell culture in real time.
Dynamic Interfacial Reaction Rates from Electrochemistry–Mass Spectrometry
A mathematical deconvolution framework for extracting quantitative, dynamic interfacial reaction rates from electrochemistry–mass spectrometry signals, validated on hydrogen and oxygen evolution in acidic electrolyte. Published in Analytical Chemistry by Krempl et al., 2021.
The Importance of Potential Control for Accurate Studies of Electrochemical CO Reduction
Copper nanoparticle CO reduction activity is underestimated by four orders of magnitude when catalysts are immersed without potential control. This study introduces an auxiliary cell for controlled-potential immersion, suppressing copper dissolution and revealing the true intrinsic CO reduction activity via electrochemistry–mass spectrometry.
Tracking oxygen atoms in electrochemical CO oxidation – Part I: Oxygen exchange via CO2 hydration
This is the same mismatched abstract as before — it’s the “Anodic molecular hydrogen formation on Ru and Cu” text again, not the CO oxidation oxygen tracking paper. Could you double-check and paste the correct abstract?
Tracking oxygen atoms in electrochemical CO oxidation – Part II: Lattice oxygen reactivity in oxides of Pt and Ir
Using chip-based EC-MS with O isotope-labeled Pt and Ir oxides, this study examines lattice oxygen reactivity in electrochemical CO oxidation and water oxidation — revealing how activated lattice oxygen drives Ir’s CO oxidation and confirming surface OH as Pt’s reactive species.
Resolving the nanoparticles’ structure-property relationships at the atomic level: a study of Pt-based electrocatalysts
Single-particle analysis uncovers the structure-property relationships behind Pt-based electrocatalyst degradation — resolving atomic-level structure, strain, and stability before and after electrochemical cycling.
Electrochemical Stability and Degradation Mechanisms of Commercial Carbon-Supported Gold Nanoparticles in Acidic Media
An accelerated stress test combined with ICP-MS and identical-location electron microscopy examines how commercial carbon-supported gold nanoparticles lose electrochemical surface area in acidic media — and how trace chloride dramatically speeds up their dissolution.
CO as a Probe Molecule to Study Surface Adsorbates during Electrochemical Oxidation of Propene
EC-MS and ATR-FTIR reveal at least two distinct classes of adsorbates formed during electrochemical oxidation of propene, identified via CO displacement, electrochemical stripping, and a redshift in the ν(C−O) IR mode.
Anodic molecular hydrogen formation on Ru and Cu electrodes
A new EC-MS study reveals anodic molecular hydrogen formation on Ru and Cu electrodes, linking H2 desorption to *OH adsorption and a high Volmer-step barrier.
Towards an atomistic understanding of electrocatalytic partial hydrocarbon oxidation propene on palladium
This study uses operando EC-MS combined with theoretical modeling to investigate propene electro-oxidation palladium electrodes, identifying key reaction intermediates and a coverage-dependent mechanism driving selectivity toward acrolein, acrylic acid, and a newly reported product, propylene glycol.