Synthesis of Nitrogen Fluorides in Plasma Jet

Bronfin, B. R.; Hazlett, Robert N.

doi:10.1021/i160020a007

Cited by 15 publications

(10 citation statements)

References 6 publications

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“…As is also shown in Figure 1, the mean global tropospheric concentration of NF 3 has risen from a value of about 0.02 ppt at the beginning of our measured record in 1978. NF 3 is known to have been used as early as the 1960s in specialty applications such as as a rocket fuel oxidizer [ Bronfin and Hazlett , 1966], so we can say only that if there is a pre‐industrial natural background of NF 3 in the atmosphere it is less than 0.02 ppt. Plotted in Figure 1b is the annual global (and NH) flux of NF 3 into the atmosphere, showing a value that has risen from about 110 metric tons yr −1 in 1995 to about 620 metric tons yr −1 in 2008.…”

Section: Mean Measured Nf3 Concentrations In Clean Background Airamentioning

confidence: 99%

Nitrogen trifluoride in the global atmosphere

Weiss

Mühle

Salameh

et al. 2008

Geophysical Research Letters

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Background atmospheric abundances and trends of nitrogen trifluoride (NF3), a potent anthropogenic greenhouse gas, have been measured for the first time. The mean global tropospheric concentration of NF3 has risen quasi‐exponentially from about 0.02 ppt (parts‐per‐trillion, dry air mole fraction) at the beginning of our measured record in 1978, to a July 1, 2008 value of 0.454 ppt, with a rate of increase of 0.053 ppt yr−1, or about 11% per year, and an interhemispheric gradient that is consistent with these emissions occurring overwhelmingly in the Northern Hemisphere, as expected. This rise rate corresponds to about 620 metric tons of current NF3 emissions globally per year, or about 16% of the poorly‐constrained global NF3 production estimate of 4,000 metric tons yr−1. This is a significantly higher percentage than has been estimated by industry, and thus strengthens the case for inventorying NF3 production and for regulating its emissions.

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Section: Mean Measured Nf3 Concentrations In Clean Background Airamentioning

confidence: 99%

Nitrogen trifluoride in the global atmosphere

Weiss

Mühle

Salameh

et al. 2008

Geophysical Research Letters

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“…Use of NF 3 began in the 1960s in specialty applications, e.g. as a rocket fuel oxidiser and as a fluorine donor for chemical lasers (Bronfin and Hazlett, 1966). Beginning in the late 1990s, NF 3 has been used by the semiconductor industry, and in the production of photovoltaic cells and flat-panel displays.…”

Section: Introductionmentioning

confidence: 99%

“…Focussed mitigation efforts, based on these results, could have a significant impact on reducing GHG emissions from specific areas. The technology for abating emissions of these gases from such discrete sources exists and could be used (Chang and Chang, 2006;Purohit and Höglund-Isaksson, 2017;Illuzzi and Thewissen, 2010;Yang et al, 2009;Raoux, 2007;Wangxing et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Inverse modelling of CF4 and NF3 emissions in East Asia

et al. 2018

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Abstract. Decadal trends in the atmospheric abundances of carbon tetrafluoride (CF4) and nitrogen trifluoride (NF3) have been well characterised and have provided a time series of global total emissions. Information on locations of emissions contributing to the global total, however, is currently poor. We use a unique set of measurements between 2008 and 2015 from the Gosan station, Jeju Island, South Korea (part of the Advanced Global Atmospheric Gases Experiment network), together with an atmospheric transport model, to make spatially disaggregated emission estimates of these gases in East Asia. Due to the poor availability of good prior information for this study, our emission estimates are largely influenced by the atmospheric measurements. Notably, we are able to highlight emission hotspots of NF3 and CF4 in South Korea due to the measurement location. We calculate emissions of CF4 to be quite constant between the years 2008 and 2015 for both China and South Korea, with 2015 emissions calculated at 4.3±2.7 and 0.36±0.11 Gg yr−1, respectively. Emission estimates of NF3 from South Korea could be made with relatively small uncertainty at 0.6±0.07 Gg yr−1 in 2015, which equates to ∼1.6 % of the country's CO2 emissions. We also apply our method to calculate emissions of CHF3 (HFC-23) between 2008 and 2012, for which our results find good agreement with other studies and which helps support our choice in methodology for CF4 and NF3.

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“…Use of NF3 began in the 1960s in specialty applications, e.g., as a rocket fuel oxidizer and as a fluorine donor for chemical lasers (Bronfin and Hazlett, 1966). More recently, beginning in the late 1990s, NF3 has been used by the semiconductor industry, and in the production of photovoltaic cells and flat-panel displays.…”

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confidence: 99%

Inverse modelling of CF4 and NF3 emissions in East Asia

Arnold¹,

Manning²,

Kim³

et al. 2018

Preprint

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Synthesis of Nitrogen Fluorides in Plasma Jet

Cited by 15 publications

References 6 publications

Nitrogen trifluoride in the global atmosphere

Nitrogen trifluoride in the global atmosphere

Inverse modelling of CF<sub>4</sub> and NF<sub>3</sub> emissions in East Asia

Inverse modelling of CF<sub>4</sub> and NF<sub>3</sub> emissions in East Asia

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Synthesis of Nitrogen Fluorides in Plasma Jet

Cited by 15 publications

References 6 publications

Nitrogen trifluoride in the global atmosphere

Nitrogen trifluoride in the global atmosphere

Inverse modelling of CF&lt;sub&gt;4&lt;/sub&gt; and NF&lt;sub&gt;3&lt;/sub&gt; emissions in East Asia

Inverse modelling of CF&lt;sub&gt;4&lt;/sub&gt; and NF&lt;sub&gt;3&lt;/sub&gt; emissions in East Asia

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Inverse modelling of CF<sub>4</sub> and NF<sub>3</sub> emissions in East Asia

Inverse modelling of CF<sub>4</sub> and NF<sub>3</sub> emissions in East Asia