A series of Ni/ZSM-5 catalysts are prepared by the methods of wet impregnation (IM), deposition-precipitation (DP), solid state ion exchange (SSIE), and modified solid state ion exchange (MSSIE), and used for catalytic decomposition of ammonia to CO_x-free hydrogen. Their physicochemical properties are characterized by XRD, N₂ sorption, TEM, NH₃-TPD, H₂-TPR, solid-state NMR, and XPS techniques. It is revealed that the preparation methods could obviously influence the Ni species and catalytic performance of Ni/ZSM-5 catalysts, and the catalyst prepared by MSSIE method exhibits the best catalytic activity due to the presence of strong metal-support interaction between highly dispersed Ni nanoparticles and ZSM-5 support. The stability testing results showed almost no activity loss over Ni/ZSM-5(MSSIE) catalyst at 650 °C for 60 h, indicating a very promising catalyst for ammonia decomposition.

通过湿法浸渍（IM），沉积-沉淀（DP），固态离子交换（SSIE）和改性固态离子交换（MSSIE）的方法制备了一系列Ni / ZSM-5催化剂，并将其用于催化氨分解为无CO _x的氢。它们的理化性质由XRD，N ₂吸附，TEM，NH ₃ -TPD，H ₂表征。-TPR，固态NMR和XPS技术。结果表明，制备方法对Ni / ZSM-5催化剂的Ni种类和催化性能有明显影响，而MSSIE法制备的催化剂由于高度分散的Ni之间存在强的金属-载体相互作用而表现出最佳的催化活性。纳米颗粒和ZSM-5载体。稳定性测试结果表明，Ni / ZSM-5（MSSIE）催化剂在650°C下持续60 h几乎没有活性损失，表明氨分解的催化剂非常有前景。