Fig. 5: Exploration of the origin of the performance enhancement.
From: Selective electrosynthesis of 1,3-butadiene by tailoring the coverage of acetylene and water
In situ Raman spectra of the Cu-12SH-NAs (a) and Cu NAs (b) in a C2H2-saturated electrolyte (633 nm laser, from −0.3 V to −0.8 V versus RHE in 1 M KOH). In situ ATR−FTIR spectra over the Cu-12SH-NAs (c) and Cu NAs (d) when C2H2 was used as the feed gas (from −0.3 V to −0.8 V versus RHE in 1 M KOH). All “a.u.” represents arbitrary units. e Area ratios of absorbed C2H2 to H2O, C4H6 to C2H2, and C2H4 to C2H2. f Schematic illustration of the mechanism of enhanced C4H6 production over Cu-12SH-NAs. Green: Cu, red: C, blue: H, light orange: O. Visuals were produced with VESTA44 and blender. Source data are provided as a Source Data file.
