Oxide ion conductors are important materials with a range of technological applications and are currently used as electrolytes for solid oxide fuel cells and solid oxide electrolyzer cells. Here we report the crystal structure and electrical properties of the hexagonal perovskite derivative Ba3MoNbO8.5. Ba3MoNbO8.5 crystallizes in a hybrid of the 9R hexagonal perovskite and palmierite structure...

With the socio economic development, people have paid more and more attention to energy source problems, especially to clean and renewable energy such as hydrogen. It is appealing but still challenging to find or design an appropriate catalyst which is inexpensive and efficient for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in the same electrolyte. In this wo...

This paper proposes a novel configuration that combines wind turbines, an electrolyzer, and a gas turbine with the corresponding generator. A control strategy for this configuration is also proposed. The purpose of this configuration and its control strategy is to make the wind farm work like a conventional power plant from a grid’s point of view. The final proposed configuration works properly...

Active and highly stable oxide-supported IrNiO(x) core-shell catalysts for electrochemical water splitting are presented. IrNi(x)@IrO(x) nanoparticles supported on high-surface-area mesoporous antimony-doped tin oxide (IrNiO(x)/Meso-ATO) were synthesized from bimetallic IrNi(x) precursor alloys (PA-IrNi(x) /Meso-ATO) using electrochemical Ni leaching and concomitant Ir oxidation. Special emphas...

• Cell pressurization can increase ozone production in electrochemical cells. Higher electrolytes with perchlorates as compared sulfates. Acidic pHs improve of ozone, which also develops from oxygen. Low temperatures and accumulation ozone. This work focuses on the at acidic pHs, evaluating influence salts electrolyte, temperature pressure efficiency its production. Results demonstrate that ele...

Although high-temperature proton exchange membrane electrolyzer cells (HT-PEMECs) have been promising devices to store energy in recent years, the effect of certain parameters on their performance is still unclear. Therefore, a 2D multiphysics model adopted study related processes electrochemical reactions an HT-PEMEC. The validated by comparison with experimental data. Subsequently, effects ap...

We present a method that operates an electrolyzer to meet the demand of hydrogen refueling station in cost-effective manner by solving model-based optimal control problem. To formulate underlying problem, we first conduct experimental characterization Siemens SILYZER 100 polymer electrolyte membrane with \SI{100}{\kilo \watt} rated power. run experiments determine electrolyzer's conversion effi...