采用水热法制备GRQD-NiCo₂O₄复合物,利用XRD、SEM及TEM分析其微结构,并探讨其作为DMFC阳极催化剂使用时的电化学性能。微结构分析表明所得GRQD-NiCo₂O₄复合物皆为具NiCo₂O₄单一相的尖晶石结构,且GRQD质量浓度高于0.25 g/mL后表面形貌将转变GRQD与NiCo₂O₄相互结合的状态。电化学分析表明添加GRQD可有效增强NiCo₂O₄的导电性并提升其电化学稳定性,其中GRQD质量浓度为0.25 g/mL时所得样品经500次循环测试后电流密度约为77.5 A/g,与循环5次后相比其电流密度剩余量最大（约为69.7%）,该样品作为DMFC阳极催化剂使用时性价比最佳。

：GRQD-NiCo₂O₄ complexes were prepared by hydrothermal method,the microstructure was analyzed by XRD,SEM and TEM,and the electro-catalytic activity as DMFC anode catalysts was discussed.The microstructure analysis showed that the GRQD-NiCo₂O₄ complexes were spinel-type structure with NiCo₂O₄ single phase,and when the concentration of GRQD was higher than 0.25 g/mL,the surface morphology would change the state that GRQD and NiCo₂O₄ combined with each other.Electrochemical analysis showed that adding GRQD could effectively enhance the conductivity and electrochemical stability of NiCo₂O₄.When the concentration of GRQD was 0.25 g/mL,the current density of the sample obtained after 500 cycles was about 77.5 A/g,and the remaining current density was the largest（about 69.7%） compared with that after 5 cycles.The sample had the best cost performance as DMFC anode catalyst.