Abstract:
Layered double hydroxides (LDH) have significant attention in recent times due to their unique characteristic properties, including layered structure, variable compositions, tunable acidity and basicity, memory effect, and their ability to transform into various kinds of catalysts, which make them desirable for various types of catalytic applications, such as electrocatalysis, photocatalysis, and thermocatalysis. In addition, the upcycling of lignocellulose biomass and its derived compounds has emerged as a promising strategy for the synthesis of valuable products and fine chemicals. The current review focuses on recent advancements in LDH-based catalysts for biomass conversion reactions. Specifically, this review highlights the structural features and advantages of LDH and LDH-derived catalysts for biomass conversion reactions, followed by a detailed summary of the different synthesis methods and different strategies used to tailor their properties. Subsequently, LDH-based catalysts for hydrogenation, oxidation, coupling, and isomerization reactions of biomass-derived molecules are critically summarized in a very detailed manner. The review concludes with a discussion on future research directions in this field which anticipates that further exploration of LDH-based catalysts and integration of cutting-edge technologies into biomass conversion reactions hold promise for addressing future energy challenges, potentially leading to a carbon-neutral or carbon-positive future.
摘要:
层状双氢氧化物(LDH)由于其独特的特性而在最近受到广泛关注,包括分层结构,可变成分,酸度和碱度可调,记忆效应,以及它们转化为各种催化剂的能力,这使得它们适用于各种类型的催化应用,如电催化,光催化,和热催化。此外,木质纤维素生物质及其衍生化合物的再循环已成为合成有价值产品和精细化学品的有希望的策略。当前的综述集中在用于生物质转化反应的基于LDH的催化剂的最新进展。具体来说,这篇综述强调了LDH和LDH衍生的生物质转化反应催化剂的结构特征和优势,其次是不同的合成方法和不同的策略,用于定制其性能的详细总结。随后,基于LDH的加氢催化剂,氧化,耦合器,以非常详细的方式严格地总结了生物质衍生分子的异构化反应。该综述最后讨论了该领域未来的研究方向,预计进一步探索基于LDH的催化剂和将尖端技术集成到生物质转化反应中,有望解决未来的能源挑战。可能导致碳中和或碳正的未来。