Author:
Kumar Manoj,Francisco Joseph S.
Abstract
Elemental sulfur aerosols are ubiquitous in the atmospheres of Venus, ancient Earth, and Mars. There is now an evolving body of evidence suggesting that these aerosols have also played a role in the evolution of early life on Earth. However, the exact details of their formation mechanism remain an open question. The present theoretical calculations suggest a chemical mechanism that takes advantage of the interaction between sulfur oxides, SOn(n= 1, 2, 3) and hydrogen sulfide (nH2S), resulting in the efficient formation of a Sn+1particle. Interestingly, the SOn+ nH2S → Sn+1+ nH2O reactions occur via low-energy pathways under water or sulfuric acid catalysis. Once the Sn+1particles are formed, they may further nucleate to form larger polysulfur aerosols, thus providing a chemical framework for understanding the formation mechanism of S0aerosols in different environments.
Publisher
Proceedings of the National Academy of Sciences
Cited by
31 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