Catalytic ammonia (NH₃) decomposition has been identified as a COx-free, sustainable hydrogen production method for fuel cell applications. In this study, the performance of plasma–catalyst-based NH₃ decomposition over ruthenium (Ru/Al₂O₃) and soda glass (SiO₂) catalytic materials at atmospheric pressure and ambient temperature was investigated. NH₃ decomposition reactions were conducted in a dielectric barrier discharge plasma plate-type reactor. NH₃ was fed into the plate catalytic microreactor at flow rates of 0.1–1 L/min and plasma voltages of 12–18 kV. Compared to plasma NH₃ decomposition without a catalyst, plasma–catalyst-based NH₃ decomposition showed a significant enhancement of the hydrogen production rate and energy efficiency. Furthermore, the hydrogen concentration results obtained over the Ru/Al₂O₃ catalyst were higher than those over the SiO₂ catalyst because Ru/Al₂O₃ possesses good electronic properties and exhibits high sensitivity to NH₃ decomposition. In addition, the resulting plasma heat enhanced the activation of the catalytic material, subsequently leading to an increase in the hydrogen production rate from NH₃. The maximum conversion rates were 85.65% and 84.39% for Ru/Al₂O₃ and SiO₂, respectively. Moreover, the energy efficiency of NH₃ decomposition over the Ru-based catalyst material was higher than that over the SiO₂ material. The presence of the catalyst active sites and plasma enhanced the mean electron energy, which could enhance the dissociation of NH₃. It can be concluded that the SiO₂ material can be utilised as a catalyst and that its combination with plasma accelerates the decomposition process of NH₃ and incurs a lower cost compared to Ru materials.

催化氨 (NH ₃ ) 分解已被确定为一种用于燃料电池应用的无 COx、可持续的制氢方法。在这项研究中，研究了基于等离子体催化剂的 NH ₃在大气压和环境温度下对钌 (Ru/Al ₂ O ₃ ) 和钠玻璃 (SiO ₂ ) 催化材料的分解性能。NH ₃分解反应在介质阻挡放电等离子体板式反应器中进行。NH ₃以0.1-1 L/min 的流速和12-18 kV 的等离子体电压被送入板式催化微反应器。与血浆 NH ₃相比在没有催化剂的情况下分解，基于等离子体催化剂的 NH ₃分解显示出氢气产率和能源效率的显着提高。此外，在Ru/Al ₂ O ₃催化剂上获得的氢浓度结果高于在SiO ₂催化剂上获得的结果，因为Ru/Al ₂ O ₃具有良好的电子特性并且对NH ₃分解表现出高敏感性。此外，产生的等离子体热增强了催化材料的活化，随后导致NH _{3 的}产氢速率增加。Ru/Al 的最大转化率为 85.65% 和 84.39%_{分别为 2} O ₃和 SiO ₂。此外，Ru基催化剂材料上NH ₃分解的能量效率高于SiO ₂材料上的能量效率。催化剂活性位点和等离子体的存在增强了平均电子能量，这可以增强NH ₃的解离。可以得出结论，SiO ₂材料可以用作催化剂，并且它与等离子体的结合加速了NH ₃的分解过程并且与Ru材料相比成本更低。