Highly active conversion of CO₂ to CO on AuCuB materials

Abstract

Electrochemical CO2 reduction reaction is an attractive solution for converting CO2 into reusable chemicals. However, the low activity of the catalysts restricts its widespread conversion application. This study uses a...

Amorphous carbon coating enhances activity of high rate CO2electroreduction to CO

“…The addition of carriers commonly changes the electrochemical activity surface areas (ECSA) of catalysts, tuning the catalyst activity. To identify the effect of the carbon shell on the 27 Ag/MPL-3C, 28 sputtered Ag/PTFE, 5 Ag/PTFE, 29 Ag NP, 30 Ag NP, 31 Ag/C, 32 Ag powder, 33 Ag-NOLI, 34 AgSn, 14 AgNP/MWCNT, 35 Ag-alloyed Zn, 36 Au 25 /C, 37 AuCu, 38 AuCuB, 39 MWNT/PyPBI/Au, 40 h-NiNC, 41 SbCu, 42 ZnAg 43 ).…”

“…(f) Comparison of the Ag/C with other reported catalysts for CO 2 RR. (Ag DAT,27 Ag/MPL-3C,28 sputtered Ag/PTFE, 5 Ag/PTFE,29 Ag NP,30 Ag NP,31 Ag/C,32 Ag powder,33 Ag-NOLI,34 AgSn,14 AgNP/MWCNT,35 Ag-alloyed Zn,36 Au 25 /C,37 AuCu,38 AuCuB,39 MWNT/PyPBI/Au, 40 h-NiNC,41 SbCu, 42 ZnAg 43 ).…”

p–d Orbital hybrid Ni–Al NC catalyst withstanding potential variations in highly selective electro-reduction of CO2 to CO

“…23 Introducing p-block elements is an effective strategy to optimize the surface structure of catalysts, which can effectively withstand potential fluctuation in electrocatalytic CO 2 reduction to CO. 24,25 Dopants induce electronic modulation in active sites and exhibit a significantly low free energy of *COOH formation. 26 To date, metal catalysts modified via non-metallic heteroatom (e.g., N) doping have been able to withstand voltage fluctuations in the reduction of CO 2 to CO. 27 Unlike non-metallic heteroatoms, p-block metal atoms co-doped with transition metals can induce p-d orbital hybridization, resulting in intriguing properties for electrochemical reactions. For example, monodisperse Ga supported on Pt 3 Mn nanocrystals shows strong p-d orbital hybridization, showing excellent ethanol oxidation properties.…”