Perovskite Oxide Materials for Solar Thermochemical Hydrogen Production from Water Splitting through Chemical Looping

Area of Science:

• Materials Science
• Chemical Engineering
• Renewable Energy

Background:

• Solar-driven thermochemical hydrogen (STCH) production is key for sustainable energy and synthetic fuel production.
• Perovskite and fluorite oxides are crucial active materials for STCH efficiency.
• Optimizing material properties is essential for efficient solar energy conversion to hydrogen.

Purpose of the Study:

• To comprehensively review perovskite oxide utilization in two-step STCH reactions.
• To identify key attributes for future research in STCH materials.
• To explore the role of machine learning (ML) and density functional theory (DFT) in STCH material discovery.

Main Methods:

• Review of experimental, computational, and thermodynamic/kinetic property studies.
• Assessment of perovskite oxides in two-step thermochemical cycles.
• Application of ML and DFT for predicting perovskite thermochemical properties.

Main Results:

• Perovskite oxides show significant potential for STCH applications.
• Integration of experimental, computational, and ML methods accelerates material screening.
• Identified essential material attributes for enhanced STCH efficiency.

Conclusions:

• ML and DFT can significantly expedite the optimization of perovskite oxides for STCH.
• Advancing STCH systems is crucial for a sustainable and carbon-neutral energy landscape.
• This review provides a roadmap for future STCH research and development.