It is shown that with the same quantitative composition of the copper-ceria-zirconia catalyst, varying only the structural and dimensional characteristics of the yttrium stabilized zirconia (YSZr), it is possible to improve the activity and selectivity of the catalyst and expand the «temperature window» of its effective operation. It has been established that the low surface area of YSZr support, due to the high degree of agglomeration of its nanoparticles, contributes to the formation of a larger number of interaction zones of copper and cerium oxides that are active sites of the process of selective oxidation of CO in hydrogen (PROX – Preferential CO oxidation).

中文翻译：

---

钇稳定氧化锆作为铜-氧化铈体系的载体对其在 Prox 过程中的催化性能的影响

结果表明，在铜-氧化铈-氧化锆催化剂的定量组成相同的情况下，仅改变钇稳定氧化锆（YSZr）的结构和尺寸特征，可以提高催化剂的活性和选择性并扩大«其有效运行的温度窗口»。已经确定，YSZr 载体的低表面积，由于其纳米粒子的高度聚集，有助于形成大量铜和氧化铈的相互作用区，它们是选择性氧化过程的活性位点氢气中的 CO（PROX – 优先 CO 氧化）。