This work reports the successful and simplistic synthesis of highly uniform NiCo@SiO₂ yolk@shell catalysts, with their effectiveness towards CO₂ recycling investigated within the RWGS reaction. The engineered microstructure catalysts display high CO₂ conversion levels and a remarkable selectivity for CO as main reaction product across the whole examined temperatures. Interestingly, the selectivity is affected by Ni loading reflecting a close correlation catalytic performance/material structure-composition. Further to this behaviour, the designed nanoreactor exhibits considerable deactivation resistance and performance under reaction cycling conditions and appears to demonstrate the production of larger organic molecules after qualitative analysis of the product gas by mass spectrometry. These results demonstrate the effectiveness of the spatial confinement effect, imbued to the material from its advanced morphology, through its influence of deactivation resistance and control of reactive selectivity.

这项工作报告了高度均匀的 NiCo@SiO ₂ yolk@shell 催化剂的成功和简单合成，并在 RWGS 反应中研究了它们对 CO ₂回收的有效性。设计的微结构催化剂显示出高 CO ₂在整个检测温度下，CO 作为主要反应产物的转化率水平和显着的选择性。有趣的是，选择性受镍负载量的影响，反映了催化性能/材料结构组成的密切相关。除了这种行为之外，设计的纳米反应器在反应循环条件下表现出相当大的抗失活性和性能，并且在通过质谱法对产物气体进行定性分析后似乎证明了更大的有机分子的产生。这些结果证明了空间限制效应的有效性，通过其对失活阻力的影响和对反应选择性的控制，空间限制效应从其先进的形态渗透到材料中。