Efficient Homolytic Cleavage of H 2 O 2 on Hydroxyl‐Enriched Spinel CuFe 2 O 4 with Dual Lewis Acid Sites
Guangzhou University · Nanchang Hangkong University
Abstract
Abstract Traditional H 2 O 2 cleavage mediated by macroscopic electron transfer (MET) not only has low utilization of H 2 O 2 , but also sacrifices the stability of catalysts. We present a non‐redox hydroxyl‐enriched spinel (CuFe 2 O 4 ) catalyst with dual Lewis acid sites to realize the homolytic cleavage of H 2 O 2 . The results of systematic experiments, in situ characterizations, and theoretical calculations confirm that tetrahedral Cu sites with optimal Lewis acidity and strong electron delocalization can synergistically elongate the O−O bonds (1.47 Å → 1.87 Å) in collaboration with adjacent bridging hydroxyl (another Lewis acid site). As a result, the free energy of H 2 O 2 homolytic cleavage is…
Citation impact
- FWCI
- 10.66
- Percentile
- 100%
- References
- 64
Authors
6Topics & keywords
- Homolysis
- Lewis acids and bases
- Catalysis
- Chemistry
- Bond cleavage
- Hydroxyl radical
- Cleavage (geology)
- Delocalized electron