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 NO_x 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, , ) 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 NO_x synthesized ranges from 1.3 × 10⁻⁴ to 3.4 × 10⁻³ mol/MJ.

中文翻译：

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常压N2 / O2丝状DBD等离子体在水上合成NOx：等离子体-液体相互作用的理化机理

在这项研究中，在大气压丝状介质阻挡放电等离子体产生在去离子（DI）水的表面，研究等离子体液体表面相互作用的物理化学机制NO _X的合成。气相等离子体诊断使用光发射光谱法，傅立叶变换红外光谱法并通过记录电压-电流曲线来进行，液相种类使用离子色谱法和紫外可见分光光度计进行分析。调查表明，对于活性氧和氮物种的反应途径（H ₂ ö ₂，，去离子水中的形成取决于不同的实验条件。可以看到，亚硝酸盐向硝酸盐的转化受活性氧的影响很大。所合成的全部NO _x的能量产率为1.3×10 ^-4至3.4×10 ^-3  mol / MJ。