Dry reforming of methane (DRM) over Ni/γ‐MgO catalysts in a coaxial dielectric barrier discharge (DBD) reactor was investigated and compared with DRM without catalysts. Firstly, the catalysts Ni/MgO, Ni/5%CeO₂/MgO, and Ni/7%CeO₂/MgO were prepared, their characteristics were specified by X‐ray diffraction, and then, they were partially packed into the DBD reactor. Various parameters such as the discharge power, flow rate, and CH₄/CO₂ molar ratio were explored. The presence of catalysts in the plasma reactor increased the yield and selectivity of H₂ and CO. Furthermore, the effect of a reduced catalyst (Ni/7%CeO₂/MgO reduced in argon‐hydrogen plasma) was evaluated, showing that CH₄ can be converted with activated catalyst without extra power. Activated Ni/7%CeO₂/MgO alone was able to convert CH₄ to over 99 % for 30 min after reduction.

中文翻译：

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同轴介质阻挡放电反应器中Ni /γ-MgO催化剂上甲烷的干重整

研究了同轴介电势垒放电（DBD）反应器中Ni / γ- MgO催化剂上甲烷（DRM）的干重整，并与无催化剂的DRM进行了比较。首先制备催化剂Ni / MgO，Ni / 5％CeO ₂ / MgO和Ni / 7％CeO ₂ / MgO，通过X射线衍射确定其特性，然后将其部分填充到DBD反应器中。探索了各种参数，例如放电功率，流速和CH ₄ / CO ₂摩尔比。等离子体反应器中催化剂的存在增加了H ₂和CO的收率和选择性。此外，催化剂还原的效果（Ni / 7％CeO ₂对在氩气-氢气等离子体中还原的/ MgO进行了评估，表明CH ₄可以用活化的催化剂转化而无需额外的功率。还原后，仅激活的Ni / 7％CeO ₂ / MgO就能在30分钟内将CH ₄转化为99％以上。