What is it about?
Hydrogen as a clean energy carrier often contains trace amount of carbon monoxide. The latter is bad because it tends to poison catalysts in hydrogen utilization. How to selectively remove carbon monoxide in the presence of hydrogen has been an important challenge. We report a catalyst that is especially effective for this purpose. The catalyst features an active center with two metal atoms. The dual-atom design shows much better stability than its single-atom analogs.
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Why is it important?
The work sheds new light on the roles played by oxygen atoms in atomically dispersed catalysts for selective oxidation reactions. It will help future catalyst designs in meeting the needs for both activity and durability.
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This page is a summary of: Highly stable preferential carbon monoxide oxidation by dinuclear heterogeneous catalysts, Proceedings of the National Academy of Sciences, December 2022, Proceedings of the National Academy of Sciences,
DOI: 10.1073/pnas.2206850120.
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