Abstract
AbstractElectroreduction of CO2to HCOO−can be considered as the most economically valuable process. Herein, we developed lysine‐functionalized SnO2nanoparticles (SnO2‐lys) as an efficient catalyst for the electroreduction of CO2into HCOO−. During CO2electroreduction, SnO2‐lys achieved a Faradaic efficiency for HCOO−of higher than 80% over a wide range of applied potentials from −0.5 V to −2.3 V versus reversible hydrogen electrode (vs. RHE). Notably, the partial current density for HCOO−reached as high as −351.9 mA cm−2at −2.3 Vvs. RHE. On account of kinetic analysis and mechanistic study, lysine‐functionalized SnO2facilitated faradaic process and accelerated reaction kinetics via enhancing the CO2activation, thus promoting the catalytic performance of the electroreduction of CO2into HCOO−.
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