Rapid conversion of carbon dioxide into titanium carbide by atmospheric microwave plasma

Kittikhun Khotmungkhun, Peeratchai Kleebbua, Arkorn Chotiyasilp, Tanant Waritanant, Thassanant Atithep, Jedsada Junpha, Kittitat Subannajui

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The accelerating climate warming requires fast methods to reduce atmospheric carbon dioxide levels. Here, we converted carbon dioxide into titanium carbide using four magnetrons which were sequentially operated to emit microwave on titanium swarf. Carbon dioxide molecules dissociated in the plasma to react with ionized titanium atoms to form a stable titanium carbide product, using a microwave frequency is 2.3 gigahertz and 800 watts electrical power for each magnetron. Results show a reduction of carbon dioxide concentration from 2000 to 385 ppm within 30 s. Titanium carbide could be further functionalized as a three-dimensional printed gas sensor.

Original languageEnglish
Pages (from-to)2177-2182
Number of pages6
JournalEnvironmental Chemistry Letters
Volume22
Issue number5
DOIs
Publication statusPublished - Oct 2024
Externally publishedYes

Keywords

  • Arc plasma
  • Fastest carbon capture
  • Plasma carburizing
  • Plasma reaction
  • Titanium carbide
  • Titanium retrieval

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