Inorganic Reaction Mechanisms in the Global Sulfur Cycle

PI: Trogler研究所：加州大学圣地亚哥分校无机、生物无机和有机金属化学项目资助加州大学圣地亚哥分校化学系William C. Trogler博士对二硫化碳和羰基硫的反应及其在大气硫循环中的行为进行研究。将研究分子氧的光诱导氧化，包括光化学在内的溶液水解反应以及气溶胶金属氧化物组分的催化氧化。羰基硫化物是炼油厂和合成气中的一种杂质，是一种管制排放产物，它作为催化剂毒物会引起技术问题。二硫化碳是生产人造丝和炭黑的一种神经毒性副产品。为了理解大气中的硫循环，这些大气气体的基本化学性质将得到更好的表征。此外，将审查它们在产生平流层硫酸盐气溶胶方面的作用，后者影响太阳反射率并与全球臭氧消耗有关。

ABSTRACT CHE-9319400 PI: Trogler Inst: U of Cal San Diego With this grant, the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research on reactions of carbon disulfide and carbonyl sulfide relevant to their behavior in the atmospheric sulfur cycle by Dr. William C. Trogler of the Chemistry Department, University of California at San Diego. Photoinduced oxidation with molecular oxygen, solution hydrolysis reactions including photochemistry, and catalytic oxidation by metal oxide components of aerosols will be investigated. Carbonyl sulfide, a regulated emission product, is an impurity in refinery and synthesis gas which can cause technical problems as a catalyst poison. Carbon disulfide is a neurotoxic byproduct of the production of rayon and carbon black. The fundamental chemistry of these atmospheric gases will be better characterized in order to understand the atmospheric sulfur cycle. In addition, their role in the production of stratospheric sulfate aerosols, which effect solar reflectivity and have been linked to global ozone depletion, will be examined.