To discuss the potential role of iridium (Ir) nanoparticles loaded under atmospheric and high pressures, we prepared a series of catalysts with the same active phase but different contents of 10wt%, 20wt%, and 30wt% on gamma-alumina for decomposition of hydrazine. Under atmospheric pressure, the performance of the catalyst was better when 30wt% of the Ir nanoparticles was used with chelating agent that had greater selectivity of approximately 27%. The increase in the reaction rate from 175 to 220 h⁻¹ at higher Ir loading (30wt%) was due to a good dispersion of high-number active phases rather than an agglomeration surface. As a satisfactory result of this investigation at high pressure, Ir catalysts with different weight percentages showed the same stability against crushing and activity with a characteristic velocity of approximately 1300 m/s.

为了讨论在大气压和高压下负载的铱（Ir）纳米颗粒的潜在作用，我们制备了一系列具有相同活性相但在γ-氧化铝上的含量分别为10wt％，20wt％和30wt％的催化剂，用于分解肼。在大气压下，当30wt％的Ir纳米粒子与螯合剂一起使用时，催化剂的性能更好，螯合剂的选择性更高，约为27％。反应速率从175增加到220 h ^-1较高的Ir负载量（30wt％）是由于大量活性相的良好分散而不是团聚表面引起的。作为在高压下进行的这项研究的令人满意的结果，具有不同重量百分比的Ir催化剂在约1300 m / s的特征速度下显示出相同的抗粉碎稳定性和活性。