CO_(2)加氢制备高级醇研究进展

Research Progress on Hydrogenation of Carbon Dioxide to Higher Alcohols

二氧化碳(CO_(2))排放量持续增加导致的全球气候变化问题已经成为人们关注的焦点,随着对可再生氢能源研究的深入,CO_(2)加氢转化为高附加值化学品成为了缓解这类环境问题的有效途径之一。在诸多 CO_(2)加氢产物中,由于高级醇(CO_(2)H)可以广泛用作燃料添加剂、反应溶剂、增塑剂和多种精细化学品的基础原料,CO_(2)加氢合成 CO_(2)H 吸引了研究者的大量关注。然而,CO_(2)的高效活化与涉及 C—C 键生成的 CO_(2)转化反应的选择性控制一直是催化领域的巨大挑战。因此,开发具有高活性、高选择性催化剂仍然是 CO_(2)加氢制 CO_(2)H 过程开发的关键。本综述介绍了近年来 CO_(2)直接加氢制高级醇的研究进展,包括具有潜在应用前景的催化剂的反应性能及其可能的反应路径,讨论了不同催化剂的反应机理和构效关系,有望为相关研究工作提供新的思路。

The issue of global climate change caused by the continuous increase in carbon dioxide (CO_(2)) emissions has become the focus of attention. With the deepening of research on renewable hydrogen energy,CO_(2) hydrogenation into high value-added chemicals has become one of the effective ways to alleviate such environmental problems. Among many CO_(2) hydrogenation products, because higher alcohols (CO_(2)H) can be widely used as fuel additives, reaction solvents, plasticizers and basic raw materials for a variety of fine chemicals, CO_(2) hydrogenation to synthesize CO_(2)H has attracted a lot of attention. However, the efficient activation of CO_(2) and the selective control of the CO_(2) conversion reaction involving the formation of C—C bonds have always been a huge challenge in the field of catalysis. Therefore, the development of a catalyst with high activity and high selectivity is still the key to the development of the process of CO_(2) hydrogenation to CO_(2)H. This review introduces the recent research progress of CO_(2) hydrogenation to make higher alcohol directly, including the potential application prospect of catalyst performance and its possible reaction paths. The reaction mechanism and structure-activity relationship of various catalysts are discussed,which is expected to be providing a new method for related research work.