Alumina materials, as one of the cornerstones of the modern chemical industry, possess physical and chemical properties that include excellent mechanical strength and structure stability, which also make them highly suitable as catalyst supports. Alumina-supported Pd-based catalysts with the advantages of exceptional catalytic performance, flexible regulated surface metal/acid sites, and good regeneration ability have been widely used in many traditional chemical industry fields and have also shown great application prospects in emerging fields. This review aims to provide an overview of the recent advances in alumina and its supported Pd-based catalysts. Specifically, the synthesis strategies, morphology transformation mechanisms, and structural properties of alumina with various morphologies are comprehensively summarized and discussed in-depth. Then, the preparation approaches of Pd/Al₂O₃ catalysts (impregnation, precipitation, and other emerging methods), as well as the metal–support interactions (MSIs), are revisited. Moreover, Some promising applications have been chosen as representative reactions in fine chemicals, environmental purification, and sustainable development fields to highlight the universal functionality of the alumina-supported Pd-based catalysts. The role of the Pd species, alumina support, promoters, and metal–support interactions in the enhancement of catalytic performance are also discussed. Finally, some challenges and upcoming opportunities in the academic and industrial application of the alumina and its supported Pd-based are presented and put forward.

中文翻译：

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形貌控制氧化铝及其负载钯催化剂的合成与应用进展

氧化铝材料作为现代化学工业的基石之一，具有优异的机械强度和结构稳定性等物理和化学性能，这也使其非常适合作为催化剂载体。氧化铝负载的钯基催化剂具有优异的催化性能、灵活调节的表面金属/酸位点以及良好的再生能力等优点，已广泛应用于许多传统化工领域，并且在新兴领域也显示出巨大的应用前景。本综述旨在概述氧化铝及其负载型钯基催化剂的最新进展。具体来说，对各种形貌氧化铝的合成策略、形貌转变机制和结构性质进行了全面的总结和深入的讨论。然后，重新审视了 Pd/Al ₂ O ₃催化剂的制备方法（浸渍、沉淀和其他新兴方法）以及金属-载体相互作用（MSI）。此外，一些有前景的应用被选为精细化工、环境净化和可持续发展领域的代表性反应，以突出氧化铝负载的钯基催化剂的通用功能。还讨论了 Pd 物质、氧化铝载体、促进剂和金属-载体相互作用在增强催化性能中的作用。最后，提出并提出了氧化铝及其负载钯基在学术和工业应用中的一些挑战和即将到来的机遇。