AI Article Synopsis
- CO oxidation is crucial for both inorganic systems and living organisms, with various metals acting as catalysts for the reaction.
- Some catalysts, like Au/TiO, can operate effectively at very low temperatures (-70 °C), while certain living organisms can oxidize CO with nitrate at ambient temperatures, playing a vital role in respiration.
- This study reveals that CO can also be oxidized to CO by nitrate at -140 °C in a nonmetallic zeolitic system, with insights gained through spectroscopic and computational methods.
Article Abstract
CO oxidation is of importance both for inorganic and living systems. Transition and precious metals supported on various materials can oxidize CO to CO. Among them, few systems, such as Au/TiO, can perform CO oxidation at temperatures as low as -70 °C. Living (an)aerobic organisms perform CO oxidation with nitrate using complex enzymes under ambient temperatures representing an essential pathway for life, which enables respiration in the absence of oxygen and leads to carbonate mineral formation. Herein, we report that CO can be oxidized to CO by nitrate at -140 °C within an inorganic, nonmetallic zeolitic system. The transformation of NO and CO species in zeolite as well as the origin of this unique activity is clarified using a joint spectroscopic and computational approach.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8519918 | PMC |
| http://dx.doi.org/10.1038/s41467-021-26157-3 | DOI Listing |
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