Abstract
AbstractCO oxidation is of importance both for inorganic and living systems. Transition and precious metals supported on various materials can oxidize CO to CO2. Among them, few systems, such as Au/TiO2, 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 CO2 by nitrate at −140 °C within an inorganic, nonmetallic zeolitic system. The transformation of NOx and CO species in zeolite as well as the origin of this unique activity is clarified using a joint spectroscopic and computational approach.
Publisher
Springer Science and Business Media LLC
Subject
General Physics and Astronomy,General Biochemistry, Genetics and Molecular Biology,General Chemistry
Reference42 articles.
1. Haruta, M., Yamada, N., Kobayashi, T. & Iijima, S. Gold catalysts prepared by coprecipitation for low-temperature oxidation of hydrogen and of carbon monoxide. J. Catal. 115, 301–309 (1989).
2. “Exhaust Gas Made Safe” Popular Mechanics, September 1951, p. 134. https://books.google.com/books?id=49gDAAAAMBAJ&pg=PA134#v=onepage&q&f=false.
3. King, G. M. Nitrate-dependent anaerobic carbon monoxide oxidation by aerobic CO-oxidizing bacteria. FEMS Microbiol. Ecol. 56, 1–7 (2006).
4. Hardy, K. & King, G. M. Enrichment of high-affinity CO oxidizers in Maine forest soil. Appl. Environ. Microb. 67, 3671–3676 (2001).
5. King, G. M. Carbon monoxide as a metabolic energy source for extremely halophilic microbes: implications for microbial activity in Mars regolith. Proc. Natl. Acad. Sci. 112, 4465–4470 (2015).
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献