kaz29Вестник Казахстанско-Британского технического университетаHerald of the Kazakh-British Technical University1998-66882959-8109Казахстанско-Британский Технический Университет10.55452/1998-6688-2026-23-1-358-366kaz29-2530Research ArticleФИЗИЧЕСКИЕ НАУКИPHYSICAL SCIENCESИССЛЕДОВАНИЕ RF-DBD РАЗРЯДА В СМЕСИ AR/CH4 В ПРИСУТСТВИИ НИКЕЛЕВОЙ ПЕНЫ ПРИ НИЗКОМ ДАВЛЕНИИSTUDY OF RF-DBD DISCHARGE IN AR/CH4 MIXTURE IN THE PRESENCE OF NICKEL FOAM AT LOW PRESSUREhttps://orcid.org/0000-0002-5932-4144ЕлубаевД. Е.YelubayevD. Ye.

докторант

г. Алматы

PhD student

Almaty

yelubayev.dias@gmail.comhttps://orcid.org/0009-0008-2286-1406ОңайбергеновЖ. Е.OngaibergenovZ. Е.

студент бакалавриата

г. Алматы

Undergraduate student

Almaty

onajbergenovz@gmail.comhttps://orcid.org/0000-0001-6768-0918УтегеновА. У.UtegenovA. U.

PhD, ассистент-профессор

г. Алматы

PhD, Assistant Professor

Almaty

almasbek@physics.kzPanBinPanBin

PhD, профессор

г. Пекин

PhD, Professor

Beijing

b.pan@ecu.edu.auhttps://orcid.org/0000-0001-5089-360XЖумадиловР. Е.ZhumadilovR. Ye.

PhD

г. Алматы

PhD

Almaty

rakimzhan@gmail.comИнститут прикладных наук и информационных технологий; Казахский национальный университет им. аль-ФарабиКазахстанInstitute of Applied Sciences and Information Technologies; Al-Farabi Kazakh National UniversityKazakhstanКазахский национальный университет им. аль-ФарабиКазахстанAl-Farabi Kazakh National UniversityKazakhstanКитайский университет нефти и газаКитайChina University of PetroleumChina202629032026231358366Copyright © Елубаев Д.Е., Оңайбергенов Ж.Е., Утегенов А.У., Pan B., Жумадилов Р.Е., 20262026Елубаев Д.Е., Оңайбергенов Ж.Е., Утегенов А.У., Pan B., Жумадилов Р.Е.Yelubayev D.Y., Ongaibergenov Z.Е., Utegenov A.U., Pan B., Zhumadilov R.Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.kbtu.edu.kz/jour/article/view/2530

В данной работе исследовано влияние никелевой пенки на структуру и свойства RF-DBD разряда в смеси аргон-метан при низком давлении 0.5 Торр. Были проведены эксперименты при варьировании подводимой мощности, потока газа и расстояния между катализатором и радиочастотным (РЧ) электродом. Показано, что увеличение мощности плазмы и изменение потока газа метана при присутствии катализатора приводит к заметному укорочению длины свечения плазмы в кварцевой трубке. Было установлено, что увеличение расстояния между катализатором и РЧ-электродом снижает возможность поддержания плазмы в области после катализатора. По итогу анализа оптических эмиссионных спектров выявлено снижение интенсивности углеродосодержащих радикалов, атомарного и молекулярного водорода после катализатора, что свидетельствует о его активном участии в плазменно-каталитических процессах. Рамановский анализ подтвердил образование отложений аморфного углерода на поверхности никелевой пенки. Установлено, что никелевая пена не только модифицирует структуру RF-DBD разряда, но и существенно влияет на распределение активных частиц в плазме, изменяя условия протекания плазменно-каталитических реакций. Полученные результаты позволяют глубже понять механизмы взаимодействия низкотемпературной плазмы с пористым металлическим катализатором и могут быть использованы при разработке эффективных плазменно-каталитических систем конверсии углеводородных газов.

This paper investigates the effect of nickel foam on the structure and properties of Radio-Frequency Dielectric Barrier Discharge (RF-DBD) in an Ar/CH4 mixture at a low pressure of 0.5 Torr. Experiments were conducted by varying the supplied power, gas flow, and distance between the catalyst and the RF electrode. It has been shown that an increase in plasma power and a change in CH4 gas flow in the presence of a catalyst leads to a noticeable shortening of the plasma glow length in a quartz tube. It was found that increasing the distance between the catalyst and the RF electrode reduces the ability to maintain plasma in the region downstream of the catalyst. The analysis of optical emission spectra revealed a decrease in the intensity of carbon-containing radicals, atomic and molecular hydrogen after the catalyst, which indicates its active participation in plasma-catalytic processes. Raman analysis confirmed the formation of amorphous carbon deposits on the nickel foam surface. It has been established that nickel foam not only modifies the structure of the RF-DBD discharge, but also significantly affects the distribution of active particles in the plasma, changing the conditions for plasma-catalytic reactions. The results obtained provide a deeper understanding of the mechanisms of interaction between low-temperature plasma and porous metal catalysts and can be used in the development of effective plasma-catalytic systems for the conversion of hydrocarbon gases.

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The authors declare that there are no conflicts of interest present.