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Application of Ceria in CO2 Conversion Catalysis

机译：CERIA在CO2转化催化中的应用

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摘要

The growing threat of global climate change has received increasing attention in recent years. The conversion of CO2 to fuels and chemicals is vital for reducing emissions of greenhouse gases and neutralizing the negative impacts of CO2 emissions on the environment. Various CO2 conversion routes have been proposed on the basis of heterogeneous catalysis. However, the development of a high-performance catalyst with satisfactory activity and selectivity remains challenging. In past decades, the role of ceria in activating CO2 under mild conditions has been widely demonstrated, which has inspired the design of novel heterogeneous catalysts and contributed to the extensive catalytic applications in CO2 conversion reactions. The applications of ceria have been studied in three groups of CO2 conversion reactions, including hydrogenation of CO2, activation of CO2 with alkanes, and nonreductive CO2 transformations. Investigations into these reactions show that CeO2 is a highly tunable material with great potential for CO2 catalysis due to its unique properties such as abundant oxygen vacancy and metal-support interaction. The catalytic performance of CeO2-based catalysts can be improved by various strategies including metal doping, forming mixed oxides or solid solution, as well as morphological control. Future works are proposed to address the challenges in current research and to further advance the CeO2-based catalysts in CO2 conversion reactions.
机译：近年来，全球气候变化的越来越大的威胁得到了越来越关注。二氧化碳转化为燃料和化学物质对减少温室气体排放并中和对环境的二氧化碳排放的负面影响至关重要。在异质催化的基础上提出了各种二氧化碳转换路线。然而，具有令人满意的活性和选择性的高性能催化剂的发展仍然具有挑战性。在过去几十年中，广泛证明了在温和条件下激活二氧化碳的激活二氧化碳的作用，这引发了新型异构催化剂的设计，并有助于CO 2转化反应中的广泛催化应用。已经在三组CO 2转化反应中研究了CERIA的应用，包括CO 2的氢化，用烷烃的激活和非重述CO 2转化。研究进入这些反应表明，CEO2是一种高度可调谐的材料，具有由于其独特的氧空位和金属支持相互作用等特殊性而具有巨大的CO2催化。 CeO 2的催化剂的催化性能可以通过包括金属掺杂的各种策略，形成混合氧化物或固溶体，以及形态对照。未来的作品将提出解决当前研究中的挑战，并进一步推进CO 2转化反应中的CEO2催化剂。

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