A series of CeO₂ with different morphologies (nanoparticles, nanorods and nanocubes) supported nickel catalysts were synthesized successfully using the hydrothermal route to investigate the morphology effects of CeO₂ on these Ni/CeO₂ catalysts for selective hydrogenation of cinnamaldehyde (CAL). Catalytic activities of three Ni/CeO₂ catalysts were ranked in the order of Ni/CeO₂-R > Ni/CeO₂-P > Ni/CeO₂-C, which was attributed to the the highest concentration of surface oxygen vacancies in Ni/CeO₂-R. These may lead more active surface oxygen and better redox properties on Ni/CeO₂-R catalyst. More importantly, Ni/CeO₂-R also showed excellent catalytic recycling stability, reflecting the morphological effect of nanocatalysis.

利用水热途径成功合成了一系列不同形态（纳米粒子，纳米棒和纳米立方体）的CeO ₂负载镍催化剂，研究了CeO ₂对这些Ni / CeO ₂催化剂的选择性催化肉桂醛加氢的形态学影响。三种Ni / CeO ₂催化剂的催化活性按Ni / CeO ₂ -R> Ni / CeO ₂ -P> Ni / CeO ₂ -C的顺序排列，这归因于Ni中表面氧空位的最高浓度/ CeO ₂ -R。这些可能导致更多的活性表面氧和更好的Ni / CeO ₂氧化还原特性-R催化剂。更重要的是，Ni / CeO ₂ -R还显示出优异的催化循环稳定性，反映出纳米催化的形态学效果。