Plasma-catalytic conversion of CO₂ and H₂O into energy gases at room temperature was studied in a dielectric barrier discharge reactor. CO, H₂, and traces of CH₄ were observed as the products in an argon atmosphere. Moreover, NiO with different morphologies was prepared and loaded on cordierite as catalysts. Compared with NiO-grain and NiO-sheet, NiO-sphere showed higher catalytic performance; the yields of H₂, CO, and CH₄ were 354.3, 21.0, and 0.061 μmol·h^–1·g_cat^–1, respectively. Characterization indicated that highly dispersed NiO nanoclusters, chemical adsorption of CO₂, and defect formation may be the factors that promoted the catalytic performance. Subsequently, a kinetic analysis was performed for further understanding the reaction process.

中文翻译：

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NiO /堇青石催化剂上CO ₂和H ₂ O的等离子体催化转化为H ₂，CO和痕量CH ₄

在电介质阻挡放电反应器中，研究了室温下将CO ₂和H ₂ O等离子催化转化为能量气体。在氩气气氛中观察到CO，H ₂和微量CH ₄作为产物。此外，制备了具有不同形态的NiO，并将其负载在堇青石上作为催化剂。与NiO-颗粒和NiO-片相比，NiO-球具有更高的催化性能。H ₂，CO和CH ₄的产率分别为354.3、21.0和0.061μmol·h ^–1 ·g _cat ^–1。表征表明高度分散的NiO纳米团簇，化学吸附CO ₂并且，缺陷形成可能是促进催化性能的因素。随后，进行动力学分析以进一步理解反应过程。