Catalyzing the Future: Pt Single Atoms in COFs for Efficient Hydrogen Evolution
Key Ideas
- PtSA@S-TFPT catalyst shows high efficiency and stability in photocatalytic hydrogen evolution.
- Incorporation of low-valence Pt single atoms into sulfur-containing COFs enhances catalytic performance.
- Methanol reduction method facilitates Pt valence state modification without particle aggregation.
- Density functional theory calculations support Pt single atoms' role in reducing hydrogen desorption barrier.
Hydrogen emerges as a sustainable energy source with photocatalytic water splitting as a cost-effective method. Single-atom catalysts (SACs) present a promising approach for efficient hydrogen evolution, but challenges like stability persist. Covalent organic frameworks (COFs) offer a solution by hosting low-valence SACs, enhancing catalytic activity. The study introduces PtSA@S-TFPT catalyst for photocatalytic HER, demonstrating high efficiency and stability. Utilizing methanol, low-valence Pt single atoms are integrated into sulfur-rich COFs, improving catalytic performance without particle aggregation. The synergy between Pt single atoms and COFs enhances hydrogen evolution rate and stability. The research provides insights into the synthetic pathway and characterization techniques, showcasing the potential of COFs for sustainable energy applications.