Related Experiment Video
Updated: Oct 8, 2025

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
Published on: August 18, 2020
Plasmonic O2 dissociation and spillover expedite selective oxidation of primary C-H bonds
Hao Li1,2, Huan Shang3, Fuze Jiang1,2
1Institute of Environmental Engineering, ETH Zürich Zürich 8093 Switzerland jing.wang@ifu.baug.ethz.ch.
Abstract:
Manipulating O2 activation via nanosynthetic chemistry is critical in many oxidation reactions central to environmental remediation and chemical synthesis. Based on a carefully designed plasmonic Ru/TiO2- catalyst, we first report a room-temperature O2 dissociation and spillover mechanism that expedites the "dream reaction" of selective primary C-H bond activation. Under visible light, surface plasmons excited in the negatively charged Ru nanoparticles decay into hot electrons, triggering spontaneous O2 dissociation to reactive atomic ˙O. Acceptor-like oxygen vacancies confined at the Ru-TiO2 interface free Ru from oxygen-poisoning by kinetically boosting the spillover of ˙O from Ru to TiO2. Evidenced by an exclusive isotopic O-transfer from 18O2 to oxygenated products, ˙O displays a synergistic action with native ˙O2 - on TiO2 that oxidizes toluene and related alkyl aromatics to aromatic acids with extremely high selectivity. We believe the intelligent catalyst design for desirable O2 activation will contribute viable routes for synthesizing industrially important organic compounds.
More Related Videos
06:34Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides CHIPS
Published on: June 20, 2014
10:14Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
Published on: November 8, 2019
Related Concept Videos
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Radical Formation: Homolysis
Phase I Oxidative Reactions: Overview