Catalytic Oxidation of Hydrocarbons

The catalytic oxidation of hydrocarbons constitutes a pivotal process in environmental remediation and chemical manufacturing. At its core, this approach utilises solid catalysts to promote the reaction between hydrocarbon molecules and molecular oxygen, transforming pollutants or feedstocks into benign or valuable oxidised species under controlled conditions. Key applications include the abatement of volatile organic compounds from industrial emissions and the synthesis of partial-oxidation products such as aldehydes and acids for the chemical industry. Central to these processes is the design of catalysts with high activity, selectivity and stability, often achieved through nanostructuring of metals such as platinum, palladium or gold on oxide supports that supply activated oxygen species. Advances in characterisation methods, including operando spectroscopy, have revealed dynamic changes in catalyst surface composition and oxidation states under reaction conditions. Recent research has focused on maximising oxygen mobility through defect engineering in metal oxides, modulating metal–support interactions to lower activation barriers and enhancing catalyst longevity under thermal and hydrothermal ageing. These developments underscore both the global significance of hydrocarbon oxidation in mitigating air pollution and its role in sustainable chemical transformations.

Research from Nature Portfolio

Recent studies have demonstrated a new strategy for total oxidation of short-chain hydrocarbons by employing platinum-nickel-cobalt alloy nanoparticles with surface oxygenation. Time-resolved operando measurements reveal that a dynamic oxygenated shell forms on the nanoparticle surface, oscillating between ordered and disordered lattice states during reaction. This dynamic modulation of lattice parameters lowers the onset temperature for complete hydrocarbon oxidation by approximately 100 °C. Moreover, the self-supported multicomponent structure shows remarkable thermal stability under prolonged hydrothermal ageing at high temperatures, representing a paradigm shift in catalyst design by integrating active oxygen reservoirs directly into the nanoparticle architecture.

Catalytic Oxidation of Hydrocarbons publication trend

The graph below shows the total number of articles in catalytic oxidation of hydrocarbons across all publications each year (not limited to Nature Index journals).

Technical terms

Turnover frequency (TOF): Rate at which reactant molecules are converted per active site per unit time.

Metal–support interaction: Electronic and structural interplay between metal catalysts and their supporting oxide, influencing activity and stability.

Oxygen vacancy: Missing oxygen atom in a metal oxide lattice that enhances oxygen mobility and catalytic reactivity.

Operando spectroscopy: Real-time spectroscopic analysis of catalysts under actual reaction conditions to monitor structural and chemical changes.

References

1. Surface oxygenation of multicomponent nanoparticles toward active and stable oxidation catalysts. Nature Communications (2020).
2. Preformed Pt Nanoparticles Supported on Nanoshaped CeO2 for Total Propane Oxidation. ACS Applied Nano Materials (2023).
3. Catalytic Oxidation of Propane and Carbon Monoxide by Pd Nanoparticles on Mn/TiO2 Catalysts. Catalysis Letters (2023).