Electrochemical reduction of CO2 at metal-free N-functionalized graphene oxide electrodes

In our work, we systematically and carefully synthesized a series of metal-free electrocatalysts, i.e., pyridoxine functionalized graphene oxide (GO-VB6), which present high catalytic active for electroreduction of CO2 to ethanol. Besides, other four pyridine derivatives (4-hydroxypyridine, 4-aminopyridine, 8-hydroxyquionline, and 5-amino-1,10-phenanthroline) functionalized GO were also successfully synthesized and exhibit various catalytic abilities for CO2 reduction.228