Direct catalytic carbon dioxide (CO) hydrogenation into gasoline fuel (C hydrocarbons) not only reduces the emission of greenhouse gas CO, but also alleviates the consumption of fossil fuels. Herein, we design a tandem catalyst Fe-Co/HZSM-5 consisting of the Fe-Co bimetallic catalyst and -axis oriented HZSM-5 nanosheets for the direct and selective conversion of CO to gasoline fuel, and systematically investigate the effects brought by the control of catalyst parameters and the reaction conditions. The HZSM-5 nanosheets with short diffusion channels (-axis thickness of 30 nm) and appropriate acid property (concentration and strength) offer the maximum gasoline fuel selectivity, up to ∼62.7 % at 36.3 % CO conversion. The shortened micropore channels facilitate a better products diffusion, which can not only improve the liquid hydrocarbons yield, but also alleviate the catalyst deactivation caused by the coke deposition. The appropriate acid property is in favor of the conversion of olefins generated over Fe-Co catalyst. In summary, it is reasonable to believe that the Fe-Co/HZSM-5 catalyst is a promising candidate for further industrial applications in CO-to-gasoline fuel conversion.

中文翻译：

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将 HZSM-5 纳米片与 Fe-Co 双金属催化剂相结合，实现 CO2 到汽油燃料的高效转化

二氧化碳（CO）直接催化加氢制汽油燃料（C碳氢化合物）不仅减少了温室气体CO的排放，还减轻了化石燃料的消耗。在此，我们设计了一种由Fe-Co双金属催化剂和轴取向HZSM-5纳米片组成的串联催化剂Fe-Co/HZSM-5，用于直接选择性地将CO转化为汽油燃料，并系统地研究了其带来的影响。控制催化剂参数和反应条件。具有短扩散通道（轴厚度为 30 nm）和适当酸特性（浓度和强度）的 HZSM-5 纳米片可提供最大的汽油燃料选择性，在 36.3 % CO 转化率下高达 ∼62.7 %。缩短的微孔通道有利于产物更好的扩散，不仅可以提高液态烃收率，还可以缓解因积炭引起的催化剂失活。适当的酸性有利于Fe-Co催化剂上生成的烯烃的转化。总之，我们有理由相信 Fe-Co/HZSM-5 催化剂是 CO 转化为汽油燃料的进一步工业应用的有希望的候选者。