Influence of tetraethylammonium cation on electrochemical CO2 reduction over Cu, Ag, Ni, and Fe surfaces

In situ formed copper nanoparticles via strong electronic interaction with organic skeleton for pH-universal electrocatalytic CO2 reduction

“…As a less oxophilic catalyst, Ag binds CO 2 through its carbon atoms, which is beneficial to the CO pathway. 33 In contrast, we synthesized Ag NPs as a typical CO-producing catalyst and conducted acidic, alkaline, and neutral electrolysis under the same conditions as HPH–Cu (Fig. 5a and b).…”

Ultrathin, Cationic Covalent Organic Nanosheets for Enhanced CO2 Electroreduction to Methanol

“…Inspired by the beneficial role of cationic surfactants in enhancing CO 2 RR activity and suppressing HER activity; [ 33–37 ] here, we reported a positively charged ultrathin covalent organic nanosheet for electrocatalytic CO 2 ‐to‐methanol conversion. We first prepared imine‐bridged covalent organic nanosheets (imine‐CONs) from the polymerization of cobalt(II) 2,9,16,23‐tetra(amino)phthalocyanine (CoTAPc) and 2,5‐ditert‐butyl‐1,4‐benzoquinone (DTBBQ), followed by post‐synthetic modification of imine‐CONs with methyl iodide to yield quaternized iminium‐CONs.…”

Revealing the activity and selectivity of ppm level copper in gas diffusion electrodes towards CO and CO2 electroreduction

“…[5][6][7] The state-of-the-art electrocatalysts for CO 2 RR are metallic. [8][9][10][11] Ag, Au, and Zn mainly convert CO 2 to carbon monoxide (CO), [12][13][14][15] while Sn and Bi are selective to formate (HCOO -) via a two-electron reduction process in CO 2 RR. [16][17][18] Cu stands out as the only known metal catalyst capable of generating high-order products such as C 1 -C 2 hydrocarbons (e.g., CH 4 and C 2 H 4 ) and C 2+ oxygenates (e.g., CH 3 CH 2 OH, CH 3 COOH, and C 3 H 7 OH,) beyond the 2ereduction route.…”