Electrocatalytic CO₂ Reduction to Syngas and HCOOH by Homogeneous Fc‐NAP₂

Abstract

Catalytic CO 2 reduction is an emerging domain of sustainable energy. The behavior of polypyridyl ligand to reduce CO 2 into value-added products is quite rare. In this study, the Fc-NAP 2 (Fc-NAP 2 = 1,1-bis[1,8-naphthyrid-2-yl]ferrocene) has been employed for CO 2 reduction in CH 3 CN/H 2 O (90 : 10, v/v) under homogeneous electrochemical conditions at À 1.6 V vs. SCE. The Fc-NAP 2 efficiently produces CO/HCOOH/H 2 from CO 2 through proton coupled 2e À reduction at an overpotential of 735 mV vs. SCE, wherein the TOF and Faradaic efficiency of CO, H 2 , and HCOOH was found to be 8.5 h À 1 , 14 h À 1 , 4.61 h À 1 and 11.9 � 0.09 %, 19.4 � 0.08 %, 10.8 � 0.02 % respectively at À 1.6 V vs. SCE after 3 h of electrolysis.

Formate dehydrogenase activity by a Cu(ii)-based molecular catalyst and deciphering the mechanism using DFT studies

“…S8(A),† top). 44,45 Another quasi-reversible peak at −0.08 V vs. SCE ( E pa = −0.04 V and E pc = −0.12 V) was attributed to the Cu( i )/Cu(0) couple. 46 The ligand-centered reductions appeared in the cathodic direction.…”

Electrocatalytic hydrogen evolution by a dinuclear copper complex and mechanistic elucidation through DFT studies

“…8(B)). 31 The faradaic efficiency was calculated to be 93% for an applied potential of −1.9 V vs . SCE.…”

“…8(B)). 31 The faradaic efficiency was calculated to be 93% for an applied potential of −1.9 V vs. SCE. The detection and quantification of liberated H 2 gas were done through gas chromatography (Fig.…”