3 Ni-N-C catalysts
Currently, according to the diversity of nickel species, the reported
Ni-N-C electrode materials for ECR can be divided into three types of Ni
nanoparticles (Ni
NPs), Ni single atom (Ni SA), as
well the co-existence of NPs and SA. The performance of some typical
catalysts is listed in Table 1 .
Table 1. Summary of representative Ni-N-C electrocatalysts
toward CO2 reduction.