二氧化碳氧化低碳烷烃脱氢制相应的低碳烯烃是多相催化领域一直渴望实现的过程，一方面低碳烯烃在化学工业中的重要地位决定了该反应的应用背景，另一方面，由于涉及到热力学稳定的CO2高效活化和烃类C-H键的定向转化而成为多相催化领域的挑战。本项目拟从有序介孔Fe复合氧化物催化新材料的创制为切入点，以二氧化碳氧化异丁烷脱氢为探针，利用介孔材料高比表面积、限域效应，达到FeOx活性中心高度分散和稳定，通过改变载体、引入碱性和过渡金属组元，调控表面酸碱性和FeOx的氧化还原能力；探索有序介孔Fe复合氧化物的制备科学与微观催化机制，建立构效关系，认知有序介孔Fe复合氧化物催化材料的表面多活性中心的构筑规律，以原位动态表征技术探究CO2作用的本质与异丁烷选择转化的反应路径，从而形成二氧化碳氧化异丁烷脱氢催化新体系，为开发具有广泛应用前景的低碳烃催化转化新材料提供理论指导和技术支撑。

The dehydrogenation of light hydrocarbon using carbon dioxide as an oxidant is a desire process in the field of heterogeneous catalysis. Not only light olefin are the fundamental materials of chemical industry, but also the challenge for CO2 utilization arises from its low reactivity and thermodynamics stability except for the selective conversion of C-H bond in hydrocarbon. In this proposal, we will construct a kind of novel catalytic materials of ordered mesoporous Fe composites oxides for the dehydrogenation of isobutane with CO2. Because of the high surface area and confinement effects of mesoporous materials, the FeOx sites will be highly dispersed and stable. The acidic and basic properties and redox performance will be regulated by introducing the basic components and transitional metals or using different carriers. The preparation science and micro-catlytic mechanism of ordered mesopopous ferric composites oxides will be explored, while the relationships between the structures and catalytic performaces will be estabilished. Moreover, we will find out the fabrication laws of many active sites on the surface of these ordered mesoporous ferric materials and investigate the active nature of CO2 as well as the pathway of isobutane conversion by serials of in-situ characterizations, in order to form the novel catalytic system for isobutane dehydrogenation with CO2 and finally provide the academic guidance and technical support for developing new catalytic materials with wide application in the field of the light olefin synthesis.