Li₆ZnO₄ was synthesized, structural and microstructurally characterized and tested as possible carbon dioxide (CO₂) chemical captor. The structural analysis suggests that Li₆ZnO₄ may have high Li-ion diffusion, based on its crystal triangle gap area measurement, which is among the highest ones analyzed within this context. Thus, Li₆ZnO₄ was dynamic and isothermally tested under different CO₂ partial pressures (1.0 and 0.2) in the presence or absence of oxygen, through thermogravimetric techniques. Li₆ZnO₄ exhibited excellent CO₂ chemisorption efficiencies, even when the CO₂ partial pressure was as low as 0.2. Moreover, the kinetic analyzed was performed using the modified Jander-Zhang model, showing fast and efficient CO₂ carbonation, where the kinetics enhanced as a function of the CO₂ concentration, as it would be expected. The XRD analysis of the isothermal products allowed to determine the CO₂ chemisorption reaction path, where an intermediate Li₁₀Zn₄O₉ crystal phase was observed. Thus, a topochemical lithium release was assumed to explain the whole Li₆ZnO₄ carbonation process, supported by the crystal structure analysis. Additionally, a cyclic Li₆ZnO₄ carbonation-decarbonation test evidenced interesting efficiencies, of around 60.0% after 10 cycles.

合成了Li ₆ ZnO ₄，对其结构和微观结构进行了表征，并测试了其作为二氧化碳（CO ₂）化学捕获剂的能力。结构分析表明，基于其晶体三角形间隙面积测量，Li ₆ ZnO ₄可能具有较高的Li离子扩散，这是在此背景下分析得出的最高值。因此，通过热重技术，在存在或不存在氧气的情况下，在不同的CO ₂分压（1.0和0.2）下，对Li ₆ ZnO ₄进行了动态和等温测试。Li ₆ ZnO ₄表现出优异的CO ₂化学吸附效率，即使当CO ₂分压低至0.2时也是如此。此外，使用改进的Jander-Zhang模型进行动力学分析，显示出快速而有效的CO ₂碳酸化，正如预期的那样，动力学随CO ₂浓度的变化而增强。等温产物的XRD分析可以确定CO ₂化学吸附反应路径，其中观察到中间的Li ₁₀ Zn ₄ O ₉晶相。因此，假定释放了化学锂来解释整个Li ₆ ZnO ₄碳酸化过程，由晶体结构分析支持。另外，循环的Li ₆ ZnO ₄碳化-脱碳测试显示出令人感兴趣的效率，在10个循环后，效率约为60.0％。