Photocatalytic Free Radical-Controlled Synthesis of High-Performance Single-Atom Catalysts

In this study, we present a straightforward approach for preparing SACs utilizing a photocatalytic radical control strategy. Notably, we demonstrate for the first time that radicals generated during the photochemical process effectively hinder the aggregation of individual atoms. By leveraging the cooperative anchoring of nitrogen atoms and crystal lattice oxygen on the support, we successfully stabilize the single atom. Our Pd1/TiO2 catalysts exhibit remarkable catalytic activity and stability in the Suzuki-Miyaura cross-coupling reaction, which was 43 times higher than Pd/C. Furthermore, we successfully depose Pd atoms onto various substrates, including TiO2, CeO2, and WO3. The photocatalytic radical control strategy can be extended to other single-atom catalysts, such as Ir, Pt, Rh, and Ru, underscoring its broad applicability.PMID:37735738 | DOI:10.1002/anie.202312734

Source: Angewandte Chemie - September 22, 2023 Category: Chemistry Authors: Xiang Chen Shuhui Guan Jianjiang Zhou Hengjun Shang Jingyuan Zhang Fujian Lv Han Yu Hexing Li Zhenfeng Bian Source Type: research