Nitrogen-doped carbon material (NCM) supported ZnO catalysts were prepared by wet impregnation method, following a high-temperature thermal treatment process. The resultant ZnO/NCM catalysts calcined at different temperatures were characterized by X-ray diffraction (XRD), Raman spectroscopy, N₂ adsorption–desorption, elemental analysis, X-ray photoelectron spectroscopy (XPS) to investigate their physicochemical properties and the interaction between ZnO and NCM support. Their catalytic properties were studied by liquid phase transesterification of dimethyl carbonate (DMC) with diethyl carbonate (DEC). Of these the catalyst calcined at 800 °C, named ZnO/NCM-800 exhibits the highest catalytic activity, as well as excellent stability and recyclability for the synthesis of ethyl methyl carbonate (EMC). The NCM support possesses abundant mesopores, rich surface oxygen-containing and nitrogen-containing functional groups, which are beneficial to build relatively strong interaction between ZnO nanoparticles and the NCM support, resulting in the generation of a highly active and stable acidic-basic bifunctional catalyst for the transesterification of DMC with DEC.

在高温热处理工艺之后，通过湿法浸渍法制备了掺氮碳材料（NCM）负载的ZnO催化剂。通过X射线衍射（XRD），拉曼光谱，N ₂表征了在不同温度下煅烧的ZnO / NCM催化剂。吸附-解吸，元素分析，X射线光电子能谱（XPS）来研究其理化性质以及ZnO和NCM载体之间的相互作用。通过碳酸二甲酯（DMC）与碳酸二乙酯（DEC）的液相酯交换反应研究了它们的催化性能。在这些催化剂中，名为ZnO / NCM-800的催化剂在800°C下煅烧，具有最高的催化活性，并且在合成碳酸乙基甲基酯（EMC）方面具有出色的稳定性和可回收性。NCM载体具有丰富的中孔，丰富的表面含氧和含氮官能团，有利于在ZnO纳米颗粒与NCM载体之间建立相对较强的相互作用，