有色金属材料与工程2024，Vol.45Issue(6)：53-59,7.DOI:10.13258/j.cnki.nmme.20230420001
Co/N掺杂多孔碳球电催化合成H2O2
Co/N-doped porous carbon spheres for H2O2 electrosynthesis
摘要
Abstract
Taking porous carbon(PC)spheres prepared from glucose as the matrix,Co/N-doped porous carbon sphere catalyst(PC-CoN)was prepared by rotary evaporation pyrolysis method.Then,the PC-CoN rich in oxygen groups(PC-CoN-O)was prepared by further oxidation,and their oxygen reduction reaction(ORR)performances were explored.Structural characterization showed that PC-CoN-O present a high specific surface area(703.95 m2/g)and abundant pore size,which was conducive to improving the mass transfer efficiency.Further analysis showed that the catalyst owned rich oxygen groups with oxygen atom fraction as high as 23.88%and the formation of Co-N groups.The results showed that the synergistic effect of oxygen groups and Co-N was beneficial to the ORR reaction in the direction of two electrons(2e-)with the electron transfer number(n)of 2.52,and the limiting density of the ring current of 0.4 mA/cm2,and the selectivity of H2O2 up to 65.00%,respectively.关键词
多孔碳球/含氧基团/氧还原反应/H2O2Key words
porous carbon sphere/oxygen groups/oxidation reduction reaction/H2O2分类
化学工程引用本文复制引用
雷强,唐志红..Co/N掺杂多孔碳球电催化合成H2O2[J].有色金属材料与工程,2024,45(6):53-59,7.基金项目
上海市地方能力建设项目(20060502200) （20060502200）
