Photoreduction of nitrogen trifluoride with controlled release of radicals

Liu, Xingang; Zhang, Jiahui; Zhang, Renxi; Hou, Huiqi; Chen, Shanping; Zhang, Yi

doi:10.1002/jctb.4136

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…Key to realizing this goal is generating versatile sets of diverse biocatalysts capable of constructing building blocks, assembling them into core scaffolds, and further diversifying those scaffolds. While tremendous progress has been made using both in vivo and purified in vitro systems, knowledge gaps still exist in how individual biosynthetic enzymes function and how multiple enzymes can be assembled to create novel pathways [76,77] . In addition, the number of putative biosynthetic gene clusters greatly outnumbers those that have been characterized.…”

Section: Discussionmentioning

confidence: 99%

Cell‐Free Exploration of the Natural Product Chemical Space

et al. 2020

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Natural products and secondary metabolites comprise an indispensable resource from living organisms that have transformed areas of medicine, agriculture, and biotechnology. Recent advances in high-throughput DNA sequencing and computational analysis suggest that the vast majority of natural products remain undiscovered. To accelerate the natural product discovery pipeline, cell-free metabolic engineering approaches used to develop robust catalytic networks are being repurposed to access new chemical scaffolds, and new enzymes capable of performing diverse chemistries. Such enzymes could serve as flexible biocatalytic tools to further expand the unique chemical space of natural products and secondary metabolites, and provide a more sustainable route to manufacture these molecules. Herein, we highlight select examples of natural product biosynthesis using cell-free systems and propose how cell-free technologies could facilitate our ability to access and modify these structures to transform synthetic and chemical biology.

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Section: Discussionmentioning

confidence: 99%

Cell‐Free Exploration of the Natural Product Chemical Space

et al. 2020

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“…In the cases of NF 3 , CHF 3 , C 2 F 6 , and C 3 F 8 , DRE was higher in the WF type than in the etch type. The N-F bond energy of NF 3 is 278 kJ/mol, so it does not require very high temperatures for decomposition [38]. WF prevented the recombination of each gas by causing a reaction as shown in Equations ( 62)-( 70) and was subsequently converted to HF.…”

Section: Rate Of By-product Gas Generationmentioning

confidence: 99%

A Study on Greenhouse Gas (PFCs) Reduction in Plasma Scrubbers to Realize Carbon Neutrality of Semiconductors and Displays

Lee,

Hwang,

et al. 2023

Atmosphere

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Perfluorinated compounds (PFCs) are used for manufacturing purposes in the semiconductor and display industries, resulting in an increased need for emission reduction due to the significant global warming potential of the associated greenhouse gases. The decomposition characteristics of etch-type and water film (WF)-type plasma-wet scrubbers were investigated. The PFCs used in the study were CF4, SF6, NF3, CHF3, C2F6, C3F8, and C4F8, and the destruction removal efficiency (DRE) and by-product gas generation rate were confirmed based on the changes in the parameters (total flow rate and power) of the plasma-wet scrubber. When the total flow rate reached 100 L/min and the measured maximum power (11 kW), the reduction efficiency of CF4 in the etch type was 95.60% and the DRE of other PFCs was 99.99%. Moreover, for the WF type, the DRE of CF4 was 90.06%, that of SF6 was 96.44%, and that of other PFCs was 99.99%. When the total flow rate reached 300 L/min and 11 kW, the DRE of SF6 in the etch type was 99%, and the DRE of NF3, CHF3, C2F6, C3F8, and C4F8 was 95.57%, 87.06%, 70.74%, 81.45%, and 95.59%, respectively. In addition, in the WF type, the DRE of SF6 was 94.39%, and the DRE of NF3, CHF3, C2F6, C3F8, and C4F8 was 99.80%, 95.34%, 85.38%, 88.49%, and 98.22%, respectively. The decomposition efficiency was high for the etch type for gases with small flow rates or no by-product gas generation. The by-product gas generation rate was significantly lower for the WF type.

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“…Further study on discharging with air in different humidity was also investigated in this work. Hydroxyl free radical and H• generated from H 2 O could react with intermediates, such as SF 5 and SF 4 (generated from SF 6 decomposition), which could further accelerate the decomposition of SF 6 [13] . Some related experiments were conducted and the results indicated that when the additive air was humidified, D(SF 6 ) increased by 23% at least.…”

Section: Relative Humiditymentioning

confidence: 99%

Decomposition of Potent Greenhouse Gases SF₆, CF₄and SF₅CF₃by Dielectric Barrier Discharge

Zhang

Wang

Cao

et al. 2016

Plasma Sci. Technol.

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For their distinguished global warming potential (GWP100) and long atmosphere lifespan, CF4, SF6 and SF5CF3 were significant in the field of greenhouse gas research. The details of discharging character and the optimal parameter were discussed by using a Dielectric Barrier Discharge (DBD) reactor to decompose these potent greenhouse gases in this work. The results showed that SF6 could be decomposed by 92% under the conditions of 5 min resident time and 3000 V applied voltage with the partial pressure of 2.0 kPa, 28.2 kPa, and 1.8 kPa for SF6, air and water vapor, respectively. 0.4 kPa CF4 could be decomposed by 98.2% for 4 min resident time with 30 kPa Ar added. The decomposition of SF5CF3 was much more effective than that of SF6 and CF4 and moreover, 1.3 kPa SF5CF3, discharged with 30 kPa O2, Ar and air, could not be detected when the resident time was 80 s, 40 s, and 120 s, respectively. All the results indicated that DBD was a feasible technique for the abatement of potent greenhouse gases.

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Photoreduction of nitrogen trifluoride with controlled release of radicals

Cited by 6 publications

References 32 publications

Cell‐Free Exploration of the Natural Product Chemical Space

Cell‐Free Exploration of the Natural Product Chemical Space

A Study on Greenhouse Gas (PFCs) Reduction in Plasma Scrubbers to Realize Carbon Neutrality of Semiconductors and Displays

Decomposition of Potent Greenhouse Gases SF₆, CF₄and SF₅CF₃by Dielectric Barrier Discharge

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Photoreduction of nitrogen trifluoride with controlled release of radicals

Cited by 6 publications

References 32 publications

Cell‐Free Exploration of the Natural Product Chemical Space

Cell‐Free Exploration of the Natural Product Chemical Space

A Study on Greenhouse Gas (PFCs) Reduction in Plasma Scrubbers to Realize Carbon Neutrality of Semiconductors and Displays

Decomposition of Potent Greenhouse Gases SF6, CF4and SF5CF3by Dielectric Barrier Discharge

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Decomposition of Potent Greenhouse Gases SF₆, CF₄and SF₅CF₃by Dielectric Barrier Discharge