It has been found that such cells operate either in the photogalvanic mode (no H2evolved) or in the photoelectrolytic mode (H2evolved at the cathode by decomposition of water),depending on whether or not the electrolyte surrounding the cathode contains dissolved oxygen. In both cases,current ...
Herein we report a 3D heterostructure comprising a hierarchical macroporous carbon foam that incorporates mesoporous carbon nanotubes decorated with cobalt oxide nanoparticles as an unique and highly efficient electrode material for the oxygen evolution reaction (OER) in electrocatalytic water splitting. The...
1c, there are apparent ionic concentration gradients exist within the BPMs when the transmembrane voltages are high enough (0.8–1.0 V), and both H+ and OH– concentration gradients increase with the transmembrane voltage due to the accelerating of water dissociation. Notably, the OH– ...
Among methods of hydrogen production, water electrolysis is the most common way because the produced hydrogen has high purity. Therefore, the topics for enhancement of the water electrolysis efficiency have drawn much attention over the past few decades. Recent studies report the effect of magnetic ...
When the electrolysis leads to the formation of gaseous products (for example H2 and O2 during the electrolysis of water), the maximum current density is limited to a few hundreds of milliamps per square centimetre (mA cm− 2). This is because non-conducting gaseous films tend to form ...
- 《Lab on A Chip》 被引量: 67发表: 2006年 Electrical modulation of the solution pH near polyaniline and its composite electrodes The pH in the vicinity of a thin conducting polymer-coated electrode was electrochemically modulated without electrolysis of water. A pH modulator was cons... T ...
fabrication and design of water electrolyzers (stacks), DFT calculations.Personal Skills Strong motivat...
Specialty metals for water electrolysis Are iridium and platinum critical materials? Hydrogen will have a crucial role to play in transforming the energy market. The first element of the periodic table has great potential to decarbonize much of the steel, cement and chemical industries as well as...
To reach a current density of 100 mA/cm2, the cell with MoS2/NiFe LDH | MoNiFe coupled electrodes only required a voltage of 1.728 V, which was significantly lower than the reference cell with Pt/C | RuO2 coupled electrodes (1.755 V). Fig. 7: The overall water ...
The membrane electrode assembly (MEA) is promising for practical applications of the electrocatalytic CO2 reduction reaction (CO2RR) to multi-carbon (C2+) compounds. Water management is crucial in the MEA electrolyser without catholyte, but few studies h