Evidence of the Dominant Production Mechanism of Ammonia in a Hydrogen Plasma with Parts Per Million of Nitrogen - DatasetAbsolute ground state atomic hydrogen densities were measured, by utilisation of two-photon absorption laser induced fluorescence (TALIF), in a low pressure electron cyclotron resonance plasma as a function of nitrogen admixtures - 0 to 5000 ppm. At nitrogen admixtures of 1500 ppm and higher the spectral distribution of the fluorescence changes from a single Gaussian to a double Gaussian distribution; this is due to a separate, nascent, contribution arising from the photolysis of an ammonia molecule. At nitrogen admixtures of 5000 ppm the nascent contribution becomes the dominant contribution at all investigated pressures. Thermal loading experiments were conducted by heating the chamber walls to different temperatures; this showed a decrease in the nascent contributions with increasing temperature. This data set contains the data shown in the corresponding publication in Appl. Phys. Lett. (https://doi.org/10.1063/5.0072534).

]]>Ammonia production mechanismsTALIFMaterials / Surfaces, Plasma Chemical Processes45f74f4c-22b0-477b-842e-de30f2cbaa822021-12-07T00:25:44+01:002022-12-22T12:32:00+01:00enINPEvidence of the Dominant Production Mechanism of Ammonia (Fig. 2, 0 ppm N2)Gaussian spectral profile for the Hα fluorescence at 656 nm for a pressure of 5 Pa and an applied power of 150 W with 0 ppm nitrogen.

]]>2021-12-07T22:26:06+01:002021-12-20T20:23:57+01:00text/csvcsv531https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-0Evidence of the Dominant Production Mechanism of Ammonia (Fig. 2, 5000 ppm N2)Gaussian spectral profile for the Hα fluorescence at 656 nm for a pressure of 5 Pa and an applied power of 150 W with 5000 ppm nitrogen.

]]>2021-12-07T22:27:06+01:002021-12-20T20:23:57+01:00text/csvcsv683https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-1Evidence of the Dominant Production Mechanism of Ammonia (Fig. 3, 3 Pa)Plasma and nascent contributions to the atomic hydrogen density as a function of nitrogen admixture for a power of 100 W and for a pressure of 3 Pa.

]]>2021-12-07T22:29:44+01:002021-12-20T20:23:57+01:00text/csvcsv363https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-2Evidence of the Dominant Production Mechanism of Ammonia (Fig. 3, 5 Pa)Plasma and nascent contributions to the atomic hydrogen density as a function of nitrogen admixture for a power of 100 W and for a pressure of 5 Pa.

]]>2021-12-07T22:30:34+01:002021-12-20T20:23:57+01:00text/csvcsv364https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-3Evidence of the Dominant Production Mechanism of Ammonia (Fig. 3, 7 Pa)Plasma and nascent contributions to the atomic hydrogen density as a function of nitrogen admixture for a power of 100 W and for a pressure of 7 Pa.

]]>2021-12-07T22:33:52+01:002021-12-08T11:01:47+01:00text/csvcsv365https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-4Evidence of the Dominant Production Mechanism of Ammonia (Fig. 4, 3 Pa)Fractional contribution, defined as the fraction of the nascent contribution to the total signal as a function of nitrogen admixture for a pressure of 3 Pa.

]]>2021-12-07T22:47:18+01:002021-12-20T20:23:57+01:00text/csvcsv117https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-5Evidence of the Dominant Production Mechanism of Ammonia (Fig. 4, 5 Pa)Fractional contribution, defined as the fraction of the nascent contribution to the total signal as a function of nitrogen admixture for a pressure of 5 Pa.

]]>2021-12-07T22:48:14+01:002021-12-20T20:23:57+01:00text/csvcsv116https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-6Evidence of the Dominant Production Mechanism of Ammonia (Fig. 4, 7 Pa)Fractional contribution, defined as the fraction of the nascent contribution to the total signal as a function of nitrogen admixture for a pressure of 7 Pa.

]]>2021-12-07T22:49:18+01:002021-12-20T20:23:57+01:00text/csvcsv115https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-7Evidence of the Dominant Production Mechanism of Ammonia (Fig. 5, 20 °C)Plasma and nascent contributions as a function of nitrogen admixture for a wall temperature of 20 °C.

]]>2021-12-07T22:54:24+01:002021-12-20T20:23:57+01:00text/csvcsv363https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-8Evidence of the Dominant Production Mechanism of Ammonia (Fig. 5, 60 °C)Plasma and nascent contributions as a function of nitrogen admixture for a wall temperature of 60 °C.

]]>2021-12-07T22:55:13+01:002021-12-20T20:23:57+01:00text/csvcsv362https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-9Evidence of the Dominant Production Mechanism of Ammonia (Fig. 5, 100 °C)Plasma and nascent contributions as a function of nitrogen admixture for a wall temperature of 100 °C.

]]>2021-12-07T22:56:01+01:002021-12-20T20:23:57+01:00text/csvcsv363https://www.inptdat.de/dataset/evidence-dominant-production-mechanism-ammonia-hydrogen-plasma-parts-million-nitrogen-10DKANhttps://www.inptdat.de