Contamination in Dielectric Barrier Discharge Plasmas by Electrode Erosion

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2024-11-23 DOI:10.1021/acsmaterialslett.4c0182810.1021/acsmaterialslett.4c01828

Robin De Meyer, Jo Verbeeck, Sara Bals* and Annemie Bogaerts*,

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Abstract

Dielectric barrier discharge plasmas find applications in various fields, including material synthesis and functionalization, plasma catalysis for gas conversion, pollution control, and biological sample treatment. While electrode erosion in these systems has been observed previously, its full implications have remained unclear. In this study, we analyze the effects of electrode erosion by examining alumina spheres exposed to the plasma using electron microscopy for detailed characterization. Our findings show that electrode erosion leads to the deposition of microscopic particles on the materials inside the plasma reactor. Whereas the operating parameters influence the properties of these particles, their formation and deposition is persistent. These electrode particles are an evident source of contamination and may lead to impurities in synthesized materials or altered plasma discharges after long-term operation. Our study highlights the importance of acknowledging the presence and potential impact of these particles for various DBD plasma applications and calls for greater awareness in the scientific community regarding this source of contamination that has been overlooked so far.

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.