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论文标题：Directly converting CO2 into a gasoline fuel 作者：Jian Wei, Qingjie Ge, Ruwei Yao, Zhiyong Wen, Chuanyan Fang, Lisheng Guo, Hengyong Xu & Jian Sun 数字识别码：10.1038/ncomms15174  《自然-通讯》发表了一篇题为“Directly converting CO2 into a gasoline fuel”的研究论文，在文章中，中国科学院大连化学物理研究所的Jian Sun和Qingjie Ge所带领的研究团队展示了一项最新的研究成果，即通过一种全新的Na-Fe3O4/HZSM-5多功能复合催化剂，首次实现了通过将CO2直接加氢制取高辛烷值汽油。 这种直接以CO2作为原料生产液态燃料的方法，引起了人们的极大关注，因为其不仅可缓解CO2排放，同时还可减轻对化石能源的依赖，可谓一举两得。研究者指出，通过一种高效稳定的Na-Fe3O4/HZSM-5多功能复合催化剂，可以直接将CO2转化为汽油范围（C5-C11）内的烃类化合物，其选择性高达所有烃类的78%，而在工业相关条件下，CO2转化率为22%时甲烷只占4%。该多功能催化剂包含三种协同催化的活性位点（Fe3O4、Fe5C2和酸性位点），可以共同催化一系列串联反应。此外，对三种活性位点的结构及其亲密性效应的调控是实现CO2加氢制备汽油的关键。同时该多功能催化剂具有良好的稳定性，可持续作用1000 h以上，未来有望将其作为工业催化剂，用于实现CO2加氢制取液态烃燃料。 摘要：The direct production of liquid fuels from CO2 hydrogenation has attracted enormous interest for its significant roles in mitigating CO2emissions and reducing dependence on petrochemicals. Here we report a highly efficient, stable and multifunctional Na–Fe3O4/HZSM-5 catalyst, which can directly convert CO2 to gasoline-range (C5–C11) hydrocarbons with selectivity up to 78% of all hydrocarbons while only 4% methane at a CO2 conversion of 22% under industrial relevant conditions. It is achieved by a multifunctional catalyst providing three types of active sites (Fe3O4, Fe5C2 and acid sites), which cooperatively catalyse a tandem reaction. More significantly, the appropriate proximity of three types of active sites plays a crucial role in the successive and synergetic catalytic conversion of CO2 to gasoline. The multifunctional catalyst, exhibiting a remarkable stability for 1,000 h on stream, definitely has the potential to be a promising industrial catalyst for CO2 utilization to liquid fuels. |
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