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This review summarizes the catalytic performance of various metal-based catalysts in the CO2-assisted oxidative dehydrogenation of light alkanes, with the goal of identifying catalyst systems that hold great potential for further development. Exploring the role of CO2 in alkane dehydrogenation aims to elucidate the mechanisms of CO2 activation and transformation. Analyzing the types of active sites, their chemical valence states, coordination environments, as well as the functional roles of additives and supports, the goal is to develop bifunctional or multifunctional composite catalysts of synergistically activating C=O and C-H bonds. The precise construction of multifunctional sites, in situ analysis of the kinetic behavior of active sites, and diversified development of catalytic systems will be crucial for achieving breakthroughs in CO2-assisted dehydrogenation of light alkanes with heterogeneous metal catalysts.
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Chinese Journal of Catalysis
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