Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"nitrate radical"”.
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Nitrate Radical-Mediated Oxidative Cleavage of Olefins Using TiO2 Photocatalysis
… an advanced approach based on photogenerated nitrate radical for the oxidative cleavage of olefins as a sustainable and scalable alternative to traditional methods. Using limonene as the model substrate, the study provides a green pathway for carbon-carbon double bond cleavage, addressing the …
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Ultrahigh Vacuum Studies of the Reaction Kinetics and Mechanisms of Nitrate Radical with Model Organic Surfaces
… of heterogeneous reactions between gas-phase nitrate radicals, a key nighttime atmospheric oxidant, and organic particles will enable scientists to predict the fate and lifetime of the particles in the atmosphere. In an effort to acquire knowledge of interfacial reactions of nitrate radical …
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Atmospheric chemistry and aerosol associated with the coastal urban environment
… rates occurred at night, likely associated with nitrate radical chemistry. Substantial differences in particle compositions and concentrations were observed on NPF and non-NPF days. PM1 mass concentrations were 7% to 76% lower on NPF days compared to non-NPF days across all sites. However, the …
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Elucidating the chemistry of particulate and chlorinated nitrates in the troposphere through method development, and chamber and field studies
… of nitrogen dioxide (NO2) and ozone, and large nitrate radical sinks, e.g., titration by monoterpenes. Concentrations of ClNO2 were enhanced in air masses with elevated NO2 concentrations that had resided over the ocean, demonstrating the potential of ClNO2 to affect radical budgets in remote …
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Hydrogen Abstraction by the Nighttime Atmospheric Detergent NO3·: Fundamental Principles
The nitrate radical (NO3·) was first identified as early as the 1881, but its role in atmospheric oxidation has only been identified within recent decades. Due to its high one-electron reduction potential and its reactivity toward a diverse set of substrates, it dominates nighttime atmospheric …
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Volatile organic compounds in the New England troposphere: Atmospheric chemistry and measurement techniques
… Island, Maine were used to investigate nighttime nitrate radical (NO3) chemistry and its significance for the nitrogen oxides (NOx = NO + NO2) budget in the Gulf of Maine region during the summer of 2004 International Consortium for Atmospheric Research on Transport and Transformation field …
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Computational Investigations at the Gas-Surface Interface: Organic Surface Oxidation and Hydrolysis of Chemical Warfare Agents and Simulants
… of ozone with C60-fullerene and the products of nitrate addition to a vinyl-terminated self-assembled monolayer. In the first system, we followed a reaction pathway beginning with primary ozonide formation through the formation of stable products. Theoretical vibrational spectra were used to …
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Secondary organic aerosol formation of relevance to the marine boundary layer
… to those when they are oxidized by ozone, by nitrate radical, and in photooxidation scenarios. For aerosol mass up to 30.0 mug m-3, their yields reach approximately 0.20, 0.20, and 0.30, respectively. The SOA yields for m-xylene and toluene are found to be in the range of 0.035 to 0.12 for …
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Study on impacts of aviation emissions and related dynamics and chemistry
… than aviation emissions. The role of peroxyacetylnitrate (PAN) and the quasi-horizontal transport in the UTLS is important for aviation impacts and ground-based HC effect on O3 in the UTLS. Despite its importance, the quasi-horizontal transport process in the UTLS, represented by global …