Entangled iodine and hydrogen peroxide formation in ice
SCIE
SCOPUS
- Title
- Entangled iodine and hydrogen peroxide formation in ice
- Authors
- Baek, Yong Su; Kim, Kitae; Saiz-Lopez, Alfonso; Min, Dae Wi; Kim, Bomi; Choi, Wonyong; Choi, Cheol Ho
- Date Issued
- 2020-08
- Publisher
- ROYAL SOC CHEMISTRY
- Abstract
- Ice-core records show that anthropogenic pollution has increased the global atmospheric concentrations of hydrogen peroxide and iodine since the mid-20th century. Here, for the first time, we demonstrate a highly efficient mechanism that synergistically produces them in icy water conditions. This reaction is aided by a key intermediate IO2H, formed by an I(-)ion with a dissolved O(2)in acidic icy water, which produces both I as well as O2H radicals. I recombines with I(-)to produce I(2)(-)at a diffusion-limited rate, followed by formation of I(3)(-)through disproportionation, while O2H yields H(2)O(2)with I(-)and a proton dissolved in icy water.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/107855
- DOI
- 10.1039/d0cp02966a
- ISSN
- 1463-9076
- Article Type
- Article
- Citation
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS, vol. 22, no. 29, page. 16532 - 16535, 2020-08
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