ZrAl materials with different compositions have been synthesized by the hydrothermal method and used as supports of Cu catalysts for hydrogen production from methanol steam reforming (MSR). The effect of the support composition, Zr/Al ratio, on the physicochemical and catalytic properties of CuZrAl catalysts was studied. The characterization results show that there is an optimal support composition (Zr/Al ratio of 0.4), allowing to achieve the highest methanol conversion due to enhanced dispersion and reducibility of copper. Zr-rich catalysts displayed low MSR activity, which is likely due to the segregation and crystallization of zirconia, resulting in the formation of large copper particles with lowered dispersion and reducibility. The catalyst with the optimal Zr/Al ratio shows the highest methanol conversion, enhanced selectivity and good long term stability, rendering this catalyst a promising material for the production of high purity H₂ from MSR.

通过水热法合成了具有不同组成的ZrAl材料，并将其用作从甲醇蒸汽重整（MSR）产生氢气的Cu催化剂的载体。研究了载体组成，Zr / Al比对CuZrAl催化剂的理化和催化性能的影响。表征结果表明，存在最佳的载体组成（Zr / Al之比为0.4），由于铜的分散性和还原性增强，因此可以实现最高的甲醇转化率。富含Zr的催化剂显示出较低的MSR活性，这很可能是由于氧化锆的偏析和结晶，导致形成了具有降低的分散性和还原性的大铜颗粒。Zr / Al比例最佳的催化剂显示出最高的甲醇转化率，₂来自MSR。