%A Xing-jie LV,Hang CHEN,Ang-jian WU,Xiao-dong LI %T Direct nitrogen fixation by air oxidation catalyzed based on magnetic rotating sliding arc plasma %0 Journal Article %D 2022 %J Journal of ZheJiang University (Engineering Science) %R 10.3785/j.issn.1008-973X.2022.06.019 %P 1206-1211 %V 56 %N 6 %U {https://www.zjujournals.com/eng/CN/abstract/article_45012.shtml} %8 2022-06-05 %X

Three kinds of MoO3/Al2O3 catalysts with different mass fractions (5%, 7.5% and 10%) were prepared by impregnation method using activated alumina (γ-Al2O3) as the carrier, and they were used for the research of plasma-catalyzed air oxidation and nitrogen fixation. In order to investigate the structural differences of catalysts with different mass fractions, the physical properties of the catalysts were characterized by XRD, SEM, and TEM. It was found that the catalyst structure was stable and distributed uniformly, which was beneficial to the catalytic experiment. The prepared MoO3/Al2O3 catalyst was used to carry out a magnetically rotating gliding arc plasma-coupled catalytic air nitrogen fixation experiment, and experiment results showed that the catalyst had a promoting effect on nitrogen fixation. Under the optimal conditions, the output rate of ${{\text{NO}}_{{x}}}^{{-}}$ reached up to 1.17 mmol/min. Compared with the highest nitrogen fixation efficiency of 985 μmol/min in similar studies, it was slightly improved.