How to connect oxygen-deficient solar power generation

Can photoelectrochemical water splitting cells convert solar energy to hydrogen?

The conventional electrolyser architecture, where hydrogen and oxygen are co-produced in the same cell, gives rise to critical challenges in photoelectrochemical water splitting cells that directly convert solar energy and water to hydrogen. Here we overcome these challenges by separating the hydrogen and oxygen cells.

How does oxygen-deficient black zirconia (ZrO 2x) affect solar light absorption?

In conclusions, oxygen-deficient black zirconia (ZrO 2−x) was prepared via the magnesiothermic reduction in H 2 /Ar atmosphere, which resulted in a drastic increment in solar light absorption and band gap decrement (to 1.52 from 5.09 eV for white ZrO 2 ).

Is solar water splitting a viable solution for hydrogen production and storage?

Solar water splitting is promising for hydrogen production and solar energy storage, but for large-scale utilization cost must be reduced. A membrane-free approach in separate oxygen and hydrogen cells brings water splitting closer to applications.

Why are surface oxygen vacancies introduced?

Furthermore, surface oxygen vacancies are introduced to extend the photo-absorption of the synthesized materials and also to promote the adsorption and activation of CO 2 molecules on the catalysts’ surface.

How efficient is a solar energy system?

Study parameter: solar radiation. The suggested system has 53.6 % electric and 41 % fuel cell efficiency. Daily H 2 output was 0.45 kg/h. Electrolyzers remove pollutants from textile wastewater to create H 2. Electrolyzer input voltage (1.20–12.3 V) and electrode materials (Platinum, Steel, Carbon) were studied. The system is eco-friendly.

What is oxygen vacancy (V O) in photocatalysis?

Learn more. Oxygen vacancy (V O) is one of the most common defects in metal oxides (MOs), which endow the MOs with many unique physiochemical properties. Even though V O engineering has been applied in photo (electro)catalysis, there are still significant challenges in the understanding of the formation, structure, and property of V O.