【摘要】 设计了基于简单的焙烧法"合成单位点钴基催化剂(Co-NG)实验",利用电化学工作站、红外光谱、透射电子显微镜、扫描透射电子显微镜以及球差电子显微镜等方法进行性能评价及表征,并研究了Co-NG催化剂在氧还原反应上的应用。结果表明,在氨气气氛下700℃焙烧后获得的钴高度分散在氮掺杂的石墨烯上,该材料在碱性锌-空气燃料电池的氧还原反应中性能最优。该实验提高了学生对碱性燃料电池的深度理解,又加强了学生在实验中的创新能力,进而提高了学生的科研能力。更多还原

【Abstract】 Based on the simple calcination method,the "Experiment on cobalt based catalyst(Co-NG)of synthesis unit point"is designed.The performance of the Co-NG catalyst is evaluated and characterized by means of the electrochemical workstation,infrared spectroscopy,transmission electron microscopy,scanning transmission electron microscopy and spherical aberration electron microscopy and the application of the Co-NG catalyst in oxygen reduction is studied.The results show that the cobalt obtained by calcination at 700 ℃in the ammonia atmosphere is highly dispersed on nitrogen-doped graphene,and the material has the best performance in the redox reaction of the alkaline zinc-air fuel cell.This experiment improves students’ deep understanding of the alkaline fuel cell,strengthens their innovative ability in experiment,and further improves their scientific research ability.更多还原