Catalytic conversion of CO2 to value-added chemicals has been long regarded as a promising approach to alleviate the detrimental effects of global climate change caused by CO2 emissions. While catalytically activating CO2, one of the most stable carbon containing molecules, remains a challenge, it necessitates research for the development of desirable catalysts of high activity and selectivity for the reduction of CO2. We developed a carbon nanosphere (CNS) encapsulated iron catalyst that enabled the conversion of CO2 to light olefins. The synthesized catalysts were tested for CO2 hydrogenation through a flow bed reactor at different temperatures using on-line gas-chromatograph (GC) analysis to determine the catalyst performance. Catalyst testing results showed promising selectivity for CO2 conversion to light olefins. Pulse CO Chemisorption, Temperature-programmed reduction (TPR), X-ray diffraction (XRD) and Thermogravimetric Analysis (TGA) were carried out with an aim to establish relationships between activity and properties. This unique core-shell nanoreactor formed by encapsulating the active Fe species in CNS can provide an ideal and practical model system to explore the fundamentals of confined catalysis.

Carbon dioxide conversion to light olefins over a carbon nanosphere encapsulated iron catalyst

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.