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:用不同的载体 ( Mg O、α- Al2 O3、γ- Al2 O3和 Mg Al2 O4 )制备了 4种镍基催化剂并对它们进行了氨分解活性评价。采用 TPR技术研究了这些催化剂的还原行为及载体表面和 Ni O组分的相互作用 ,并用 XRD对催化剂的固相结构进行了表征。
: Four nickel-based catalysts were prepared with different supports (MgO, α-Al 2 O 3, γ-Al 2 O 3 and Mg Al 2 O 4) and evaluated for their ammonia decomposition activity. The reduction behavior of these catalysts and the interaction between Ni O and support surface were investigated by TPR. The solid phase structure of the catalysts was characterized by XRD.