【摘要】 二甘醇是非常重要的石油化工中间体之一，具有独特的醚键和对称的端羟基结构，可通过氧化和胺化等反应转化为高附加值化学品。本文将系统论述二甘醇的合成及其催化转化为吗啉、对二氧环己酮和二甘醇酸等高附加值化学品方面的最新研究进展与关键挑战，重点剖析了二甘醇反应路径、反应机理和催化剂设计等关键科学问题。围绕二甘醇合成与转化过程中负载型Ni基、Cu基和Pt基等催化剂与助剂设计，探讨了表面催化反应机理、催化剂失活机理，以及催化剂活性位的结构与催化性能的构效关系。旨在为未来基于二甘醇的新产品开发过程提供催化剂设计的科学依据与技术参考。更多还原

【Abstract】 Diethylene glycol(DEG) is an important petrochemical intermediate characterized by its distinctive ether linkage and symmetrical terminal hydroxyl groups, which enable its transformation into high valueadded chemicals through oxidation, amination, and related reactions. This review systematically discussed recent advances and key challenges in the synthesis of DEG and its catalytic conversion to value-added products such as morpholine, p-dioxanone, and diglycolic acid, with particular emphasis on elucidating the reaction pathways, mechanistic features, and catalyst design principles associated with DEG transformation. Focusing on supported Ni-, Cu-, and Pt-based catalysts and promoter-modified systems applied in DEG synthesis and conversion, we examined surface catalytic reaction mechanisms, catalyst deactivation pathways, and the structure-activity relationships that link the structural characteristics of active sites to catalytic performance. The objective is to provide scientific insights and technical guidance for catalyst design and the development of novel DEG-derived products in future research.更多还原