Abiotic molecular oxygen production—Ionic pathway from sulfur dioxide

  title={Abiotic molecular oxygen production—Ionic pathway from sulfur dioxide},
  author={M{\aa}ns Wallner and Mahmoud Jarraya and Emelie Olsson and Veronica Ideb{\"o}hn and Richard James Squibb and Saida Ben Yaghlane and Gunnar Nyman and John H. D. Eland and Raimund Feifel and Majdi Hochlaf},
  journal={Science Advances},
Molecular oxygen, O2, is vital to life on Earth and possibly also on exoplanets. Although the biogenic processes leading to its accumulation in Earth’s atmosphere are well understood, its abiotic origin is still not fully established. Here, we report combined experimental and theoretical evidence for electronic state–selective production of O2 from SO2, a chemical constituent of many planetary atmospheres and one that played an important part on Earth in the Great Oxidation Event. The O2… 
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