Summary of covalently immobilized heterogeneous molecular electrocatalysts for electrocatalytic CO₂ reduction.

Catalyst	V vs. RHE	j (mA cm−2)	FE% (CO)	TOF (s−1)	Ref.
CoTAP	−0.9	4	100	6	104
CATCO2H	−0.8	0.6	86	0.05	130
CoPPCl	−0.8	25	98	1.9	131
Co-TPP	−0.8	1.5	67	8.3	105
COF-366-Co–CNT	−0.68	6.8	92	1.2	132
MWCNT-Por-COF-Co	−1.0	18.7	99.3	70.6	129