AI Article Synopsis
- A study explores the early evolution of molecules in the universe, focusing on the abundant simple molecule, CH (carbon hyride).
- It was found that high-energy γ-ray photons can drive the conversion of aqueous-phase CH into various products, especially glycine when ammonia is added, even at room temperature.
- The presence of solid granules modifies the conversion process, with the addition of SiO leading to a high selectivity for CHCOOH (82%), suggesting a possible pathway for creating complex organic compounds in space and improving carbon usage for valuable products.
Article Abstract
Fundamental understanding of initial evolutions of molecules in the universe is of great interest and importance. CH is one of the abundant simple molecules in the universe. Herein we report γ-ray, high-energy photons commonly existing in cosmic rays and unstable isotope decay, as an external energy to efficiently drives aqueous-phase CH conversions to various products with the presence of oxygen at room temperature. Glycine also forms with an additional introduction of ammonia. Both CH conversions and product distributions are modified by solid granules, and a CHCOOH selectivity as high as 82 % is obtained when SiO is added. Our results point to γ-ray driven aqueous-phase CH conversions as a likely formation network of initial complex organic compounds in the universe and offer an alternative strategy for efficiently utilizing CH as the carbon source to produce value-added products at mild conditions, a long-standing challenging task in heterogeneous catalysis.
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| http://dx.doi.org/10.1002/anie.202413296 | DOI Listing |
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