Experimental study on hydrogen bubble growth and detachment on surface-modified electrodes

Bubble growth on arrays of micro-electrodes

Gas bubbles evolving on electrodes during water-electrolysis are blocking active reaction area, thus hindering mass transfer and raising Ohmic resistance. Unlike earlier models that prescribe a uniform current density on the wetted part of the electrode, we resolve the primary electric field, which allows the current d...

In Situ Measurements of Interfacial Electric Fields at Graphene-Modified Electrode Surfaces During High Current Density Operation

Understanding electric fields at electrode/electrolyte interfaces strongly influences electrocatalytic processes, yet their characterization at high current densities is often hindered by gas evolution that interferes with physical and electromagnetic probes. Herein, a custom electrochemical flow cell is presented th...

Gas Diffusion Layer with Multiscale Roughness Structure for Enhanced Durability of Gas Diffusion Electrode

Electrochemically Formed Submicrometer Liquid Metal Alloy Wires: A Route toward High-Surface-Area Electrochemical Electrodes

Electrochemical control of interfacial tension enables the extrusion of gallium-based liquid metals into high-surface-area nonspherical geometries relevant to electrocatalysis and hydrogen production. Here, liquid metal wires with diameters down to ∼500 nm are produced using quartz nanopipettes under moderate anodic...

Effect of Surface Modification of Cu Electrodes by Ag Nanoparticle Spray Coating on the Products and Electrolytic Potential of Electrochemical CO2 Reduction

Electrochemical CO2 reduction reaction (eCO2RR) is a promising technology for carbon utilization, yet achieving high product selectivity and long-term stability remains a critical challenge. In this study, we investigated the performance and surface stability of Cu electrodes modified with Ag nanoparticles using a spra...

The effects of electrode particle morphology on electrochemical-mechanical performance for lithium-ion battery

To improve the performance of lithium-ion batteries, electrode particles have been designed in various morphologies, with the cylindrical structure being one of the more common electrode particle shapes. However, compared to conventional spherical particles, the advantages of cylindrical particles have not been fully u...