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Mechanisms of Formation of Atmospheric Nitrous Oxide

大气一氧化二氮的形成机制

基本信息

批准号：
9632311
负责人：
William Trogler
金额：
$ 40.5万
依托单位：
University of California-San Diego
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1996
资助国家：
美国
起止时间：
1996-08-15 至 1999-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9632311&HistoricalAwards=false
关键词：
Mechanisms Formation Atmospheric Nitrous Oxide

项目摘要

This award supports research by Dr. William C. Trogler and Dr. Mark H. Thiemens, both of the Chemistry Department, University of California, San Diego, for investigation of reactions leading to the production of nitrous oxide in the environment. The project is jointly funded by the Inorganic, Bioinorganic, and Organometallic Chemistry Program, Chemistry Division, and the Atmospheric Chemistry Program, Division of Atmospheric Sciences. The goal of the research is to help resolve the global nitrous oxide budget and the variation observed in nitrous oxide emissions and its isotopic composition. The role of atmospheric carbon aerosol surfaces as catalysts for nitrous oxide formation will be investigated, as will mechanistic and electrochemical studies of fundamental chemical reactions that form nitrous oxide. In all the experiments, nitrogen and oxygen heavy atom isotope effects will be determined as a possible indictor of reaction mechanism and for comparison to existing isotopic data for atmospheric nitrous oxide. Nitrous oxide is a source of stratospheric nitric oxide, an important sink for ozone, and it can also contribute to greenhouse warming because of its high warming potential. As a byproduct of industrial development with a long lifetime in the atmosphere, it is important to understand its sources but they are not completely known. In this research, some potential sources for nitrous oxide will be examined.

该奖项支持William C. Trogler和Mark H. 他们都是加州大学旧金山分校化学系的 Diego，用于研究导致产生环境中的一氧化二氮。该项目由联合资助，无机、生物无机和有机金属化学课程，化学大气化学计划，大气化学部以理工科为重这项研究的目标是帮助解决全球的氮一氧化二氮排放量的变化，同位素组成。大气碳气溶胶的作用将研究表面作为一氧化二氮形成的催化剂，基础化学的机械学和电化学研究形成一氧化二氮的反应。在所有实验中，氮和氧重原子同位素效应将被确定为可能的反应机制的指示剂，并与现有同位素进行比较大气中一氧化二氮的数据。一氧化二氮是平流层一氧化氮的来源，它也可能导致温室效应，因为它的高变暖潜力。作为工业发展的副产品由于在大气层中的寿命很长，因此了解其来源，但并不完全清楚。在这项研究中，一些将审查一氧化二氮的潜在来源。