Nitrogen Oxidation on A Plasma-Exposed Surface

IF 2.5 3区物理与天体物理 Q3 ENGINEERING, CHEMICAL

Plasma Chemistry and Plasma Processing Pub Date : 2025-07-28 DOI:10.1007/s11090-025-10584-x

Steijn Vervloedt, Achim von Keudell

引用次数: 0

Abstract

The elementary processes during the fixation of nitrogen by plasma catalysis are studied in a low-pressure plasma experiment with N\(_2\) and O\(_2\) as source gases. The formation of surface groups on an iron oxide foil is monitored with infrared reflection absorption spectroscopy. Surface nitrates (NO\(_3^-\)) are formed when the substrate is exposed to a 1:1 N\(_2\):O\(_2\) plasma, as well as N\(_2\)O(g), NO(g), NO\(_2\)(g), and O\(_3\)(g) in the gas phase. It is postulated that NO\(_{1,2}\)(g) species created by the plasma, adsorb at the surface and create these nitrates. This constitutes an intermediate step for nitrogen oxidation by plasma catalysis.

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等离子体暴露表面的氮氧化

在低压等离子体实验中，以N \(_2\)和O \(_2\)为源气体，研究了等离子体催化固定氮的基本过程。利用红外反射吸收光谱法对氧化铁箔表面基团的形成进行了监测。当衬底暴露于1:1 N \(_2\):O \(_2\)等离子体以及气相中N \(_2\) O(g)、NO(g)、NO \(_2\) (g)和O \(_3\) (g)时，表面硝酸盐（NO \(_3^-\)）形成。据推测，由等离子体产生的NO \(_{1,2}\) (g)物质在表面吸附并产生这些硝酸盐。这是等离子体催化氧化氮的中间步骤。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plasma Chemistry and Plasma Processing 工程技术-工程：化工

CiteScore

5.90

自引率

8.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Publishing original papers on fundamental and applied research in plasma chemistry and plasma processing, the scope of this journal includes processing plasmas ranging from non-thermal plasmas to thermal plasmas, and fundamental plasma studies as well as studies of specific plasma applications. Such applications include but are not limited to plasma catalysis, environmental processing including treatment of liquids and gases, biological applications of plasmas including plasma medicine and agriculture, surface modification and deposition, powder and nanostructure synthesis, energy applications including plasma combustion and reforming, resource recovery, coupling of plasmas and electrochemistry, and plasma etching. Studies of chemical kinetics in plasmas, and the interactions of plasmas with surfaces are also solicited. It is essential that submissions include substantial consideration of the role of the plasma, for example, the relevant plasma chemistry, plasma physics or plasma–surface interactions; manuscripts that consider solely the properties of materials or substances processed using a plasma are not within the journal’s scope.