NOx synthesis by atmospheric-pressure N2/O2 filamentary DBD plasma over water: Physicochemical mechanisms of plasma-liquid interactions

被引：37

作者：

Roy, Nepal C. ^{[1
]}

Pattyn, Cedric ^{[1
]}

Remy, Antoine ^{[1
]}

Maira, Nicolas ^{[1
]}

Reniers, Francois ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Chem Surfaces Interfaces & Nanomat ChemSIN, B-1050 Brussels, Belgium

来源：

PLASMA PROCESSES AND POLYMERS | 2021年 / 18卷 / 03期

关键词：

collision processes; filamentary dielectric barrier discharge; nitrogen fixation; NOx synthesis; plasma diagnostics; plasma– liquid interactions; NONEQUILIBRIUM PLASMA; NITROGEN-FIXATION; BARRIER DISCHARGE; AIR; ARGON; GENERATION;

D O I：

10.1002/ppap.202000087

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, an atmospheric-pressure filamentary dielectric barrier discharge plasma is produced over a deionized (DI) water surface to study the physicochemical mechanisms of plasma-liquid surface interactions for NOx synthesis. The gas-phase plasma diagnostics are performed using optical emission spectroscopy, Fourier-transform infrared spectroscopy, and by recording voltage-current curves, and liquid-phase species are analyzed using ion chromatography and UV-visible spectrophotometer. The investigations indicate that the reaction pathways for reactive oxygen and nitrogen species (H2O2, NO 2 -, N O 3 -) formation in DI water depend on different experimental conditions. It is observed that the conversion of nitrites into nitrates is significantly influenced by reactive oxygen species. The energy yield for the total amount of NOx synthesized ranges from 1.3 x 10(-4) to 3.4 x 10(-3) mol/MJ.

引用

页数：15

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