本研究将CeO_x引入催化剂载体中，在N₂气氛下高温焙烧制得CeO_x掺杂的氮化炭材料作为载体，通过浸渍还原法将活性组分Rh负载到CeO_x-C₃N₄载体上合成Rh/CeO_x-C₃N₄催化剂，并探究其对催化水合肼制氢的性能的影响。研究结果表明，Rh/CeO_x-C₃N₄催化剂中，活性组分Rh与CeO_x之间存在协同效应，其中，CeO_x的掺杂有效地分散和稳定金属活性组分，为催化反应提供更多的活性位点。因此，该催化剂对催化水合肼制氢具有良好的催化活性。所制备的Rh/CeO_x-C₃N₄催化剂催化水合肼展现出最好的催化活性，初始转化率TOF值高达1959.24 h⁻¹。循环五次后，催化活性依然保持良好，表明其拥有良好的稳定性。

In this paper, CeO_x was doped into the catalytic system and cerium-doped carbon nanomaterial was prepared by roasting at high temperature in N₂ atmosphere as the carrier. Rh/CeO_x-C₃N₄ catalyst was synthesized by loading the active component Rh onto CeO_x-C₃N₄ carrier through impregnation reduction method, and its influence on catalytic performance of hydrazine hydrate dehydrogenation was investigated. The results showed that there was a synergistic effect between the active component Rh and CeO_x in Rh/CeO_x-C₃N₄ catalyst, and the doping of CeO_x effectively dispersed and stabilized the metal active component, providing more active sites for catalytic reaction. Therefore, the catalyst has good catalytic activity for the dehydrogenation of hydrazine hydrate. The prepared Rh/CeO_x-C₃N₄ catalyst showed the best catalytic activity for hydrazine hydrate, and the initial conversion TOF was up to 1959.24 h⁻¹. After 5 cycles, the catalytic activity remained good, indicating good durability.