Electrical and reaction performances of packed‐bed plasma reactors moderated with ferroelectric or dielectric materials,Plasma Processes and Polymers

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Electrical and reaction performances of packed‐bed plasma reactors moderated with ferroelectric or dielectric materials
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2020-11-12 , DOI: 10.1002/ppap.202000193
Ana Gómez‐Ramírez _{1,

2} , Rafael Álvarez _{1,

3} , Paula Navascués ₂ , Francisco J. García‐García _{2,

4} , Alberto Palmero ₂ , José Cotrino _{1,

2} , Agustín R. González‐Elipe ₂

Affiliation

The operational behavior of packed‐bed plasma reactors depends on the dimension, shape, and chemical properties of the pellets used as moderators, but little information exists about the influence of their specific dielectric properties. Herein, we comparatively study the electrical behavior of a packed‐bed reactor filled with pellets of either dielectric (Al₂O₃ and glass) or ferroelectric (BaTiO₃ and lead zirconate titanate) materials. We found that plasma current was higher for ferroelectrics and presented a nonlineal dependence on voltage. Moreover, for BaTiO₃, we found a drastic decrease at around its relatively low Curie temperature. Differences in electrical behavior have a direct effect on the reactor performance, as illustrated for the ammonia synthesis, demonstrating the importance of moderator material dielectric properties and their dependence on temperature.

中文翻译：

铁电或介电材料调节的填充床等离子体反应器的电和反应性能

填充床等离子体反应器的操作行为取决于用作缓和剂的颗粒的尺寸，形状和化学性质，但有关其特定介电性质的影响的信息很少。在这里，我们比较研究填充有电介质（Al ₂ O ₃ 和玻璃）或铁电（BaTiO ₃ 和锆钛酸铅）材料的颗粒的填充床反应器的电性能。我们发现，铁电体的等离子体电流更高，并且呈现出对电压的非线性依赖性。而且，对于BaTiO ₃，我们发现居里温度较低时，温度急剧下降。如氨合成所示，电性能的差异直接影响反应堆的性能，这证明了慢化剂材料介电性能及其对温度的依赖性非常重要。

更新日期：2020-11-12

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