Ru-Catalyzed Reverse Water Gas Shift Reaction with Near-Unity Selectivity and Superior Stability
Source abstract
Abstract
Cascade catalysis of reverse water gas shift (RWGS) and well-established CO hydrogenation holds promise for the conversion of greenhouse gas CO2 and renewable H2 into liquid hydrocarbons and methanol under mild conditions. However, it remains a big challenge to develop low-temperature RWGS catalysts with high activity, selectivity, and stability. Here, we report the design of an efficient RWGS catalyst by encapsulating ruthenium clusters with the size of 1 nm inside hollow silica shells. The spatially confined structure prevents the sintering of Ru clusters while the permeable silica layer allows the diffusion of gaseous reactants and products. This catalyst with reduced particle sizes not only inherits the excellent activity of Ru in CO2 hydrogenation reactions but also exhibits nearly 100% CO selectivity and superior stability at 200–500 °C. The ability to selectively produce CO from CO2 at relatively low temperatures paves the way for the production of value-added fuels from CO2 and renewable H2.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalysts for Methane Reforming · Catalytic Processes in Materials Science · Carbon dioxide utilization in catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
Institute of Materials Chemistry, Technische Universität, Wien, Vienna 1060, Austria
Funding
State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Austrian Science Fund · Natural Science Foundation of Jiangsu Province · National Natural Science Foundation of China · TU DK CO2 Refinery · Collaborative Innovation Centre of Suzhou Nano Science & Technology · Suzhou Key Laboratory of Functional Nano & Soft Materials
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