Plasma assisted catalytic conversion of CO2 and H2O Over Ni/Al2O3 in a DBD Reactor

Xintong Ma, Sirui Li (Corresponding author), Maria Ronda-Lloret, Rohit Chaudhary, Liangliang Lin, Gerard van Rooij, Fausto Gallucci, Gadi Rothenberg, N. Raveendran Shiju, Volker Hessel

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We present an innovative approach for reacting carbon dioxide and water to give syngas by combining heterogeneous catalysis and non-thermal plasma techniques. This approach utilizes an abundant water and nickel catalyst, and mitigates the thermodynamic penalty by using a Dielectric Barrier Discharge (DBD) plasma reactor. Argon dilution was used in the experiment to reduce the exothermic recombination of hydrogen and oxygen, which is considered as the major hurdle for H2O conversion. As a result, the syngas ratio was dramatically improved from 0.07 to 0.86. In addition, the conversions of CO2 and H2O were improved by packing Ni/γ–Al2O3 catalysts into the DBD reactor. The yields of H2 and CO were up to 13.8% and 5.6% respectively. The conditions for plasma catalysis and the catalyst characterization are presented and discussed.

Original languageEnglish
Pages (from-to)109-124
Number of pages16
JournalPlasma Chemistry and Plasma Processing
Issue number1
Publication statusPublished - 15 Jan 2019


  • CO conversion
  • Non-thermal plasma
  • Syngas production


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