氨(NH3)是合成化肥、炸药和纤维织物等化工产品的基本原料，也是公认的氢能源载体。传统合成氨工艺中存在氮分子极难被活化和反应条件苛刻(450–600℃，150–300bar)等瓶颈，因而如何发展一种可在温和条件下合成氨的催化技术成为一个重要研究课题。本项目提出将结构化催化剂与非热等离子体结合，用于低温(<100℃)常压下催化合成氨，关键是研制适合于非热等离子体的泡沫陶瓷复合钛酸钡负载钌基结构化催化剂，重点研究钛酸钡涂层的厚度、钌活性位点的粒径和分散度等催化剂的微结构特性对合成氨性能的影响规律，揭示活性位点的调控机理、催化剂的微结构特性与性能之间的关系；探讨非热等离子体反应器的操作参数如输入电压和功率、反应物组成和流速等对催化性能的影响规律，揭示催化反应机理和反应动力学。本项目将为开发一项适用于非热等离子体催化合成氨的结构化催化剂提供共性的科学规律，具有重要的理论意义和潜在的工程应用价值。

Ammonia is not only considered a vital feedstock for manufacturing useful products such as fertilizer, plastics, explosives and synthetic fabrics, but also an important hydrogen carrier. The major challenges for industrial ammonia synthesis from N2 and H2 using the Haber-Bosch process include: (i) high temperatures (e.g., 450–600℃) are required to dissociate the highly stable N≡N bond, (ii) high pressures (e.g., 150–300bar) are also needed to shift the equilibrium in favour of the ammonia production. Therefore, to overcome such limitations, it is a key research subject to develop a highly efficient technology for catalytic ammonia synthesis under mild condition. The project aims to study the combination of non-thermal plasma (NTP) and structured catalyst for catalytic ammonia synthesis at low temperature (<100℃) and atmospheric pressure. Specifically, the proposed research will mainly focus on the development of structured Ru/BaTiO3 catalyst supported on ceramic foam, including several main aspects: (i) studying the effect of microstructure properties of developed catalyst (e.g., BaTiO3 coating thickness, nanoparticle size and dispersion of Ru active sites) on the catalytic performance of ammonia synthesis, revealing the regulatory mechanism of active sites and the relationship between microstructure properties and performance; (ii) testing the operation parameters of NTP reactor (e.g., input voltage and power, reactant composition and flow rate), revealing the catalytic reaction mechanism and reaction kinetic under NTP condition. The project will provide general scientific regularity to develop structured catalyst for NTP catalytic ammonia synthesis, showing important theoretical significance and potential engineering application value.