Influence of sputtering parameters on electrochemical CO2 reduction in sputtered Au electrode

A review of catalysts for the electroreduction of carbon dioxide to produce low-carbon fuels

“…A sputtering deposition technique was used to prepare a Au electrode for CO 2 reduction. 285 The results indicated that Ar pressure had an effect on the Au surface's geometrical structure and surface area, resulting in different CO 2 reduction potentials in both KCl and KHCO 3 solutions. A porous Au film electrode (a 200-260 nm Au film deposited on a porous hydrophilic polymer membrane) was also prepared by vapor deposition for the electrochemical reduction of CO 2 to CO in 99.99% KHCO 3 aqueous solution.…”

Insights into an autonomously formed oxygen-evacuated Cu2O electrode for the selective production of C2H4 from CO2

“…3 For instance, formate (HCOO À ) is primarily formed on electrocatalysts such as Sn, Pb, and Hg, which exhibit negligible carbon monoxide (CO) adsorption. [6][7][8] The Au and Ag electrodes mainly convert CO 2 to CO. [9][10][11][12] Cu is analogous to the metals with weak CO adsorption, but it is considered to be a unique catalyst for the production of monovalent and divalent hydrocarbons. [9][10][11][12] Based on the above observations in previous studies, CO adsorption is undoubtedly an important step, since CO molecules are considered as key intermediates during CO 2 electroreduction.…”

“…[6][7][8] The Au and Ag electrodes mainly convert CO 2 to CO. [9][10][11][12] Cu is analogous to the metals with weak CO adsorption, but it is considered to be a unique catalyst for the production of monovalent and divalent hydrocarbons. [9][10][11][12] Based on the above observations in previous studies, CO adsorption is undoubtedly an important step, since CO molecules are considered as key intermediates during CO 2 electroreduction. 11 Among these metals, great effort has been recently focused on Cu electrodes because of its unique electrocatalytic behaviour in enabling adsorbed CO to further react with more reduced organic molecules, such as methane (CH 4 ), ethylene (C 2 H 4 ), methanol (CH 3 OH), and ethanol (C 2 H 5 OH).…”

Electrode Build‐Up of Reducible Metal Composites toward Achievable Electrochemical Conversion of Carbon Dioxide

“…Depending on their primary reaction products, the transition metals are classified into three groups as follows: 1) sp metals (e.g., Hg, In, Sn, and Pb) selectively produce formate (HCOO − ); 2) d metals (e.g., Ag, and Au) mainly convert CO 2 into CO; and 3) as an unique case, Cu in d metals could further electrochemically convert CO into hydrocarbons or oxygenates, such as CH 4 , C 2 H 4 and C 2 H 5 OH …”