Electrocatalytic CO2 reduction to C2+ products on Cu and CuxZny electrodes: Effects of chemical composition and surface morphology

Electrochemical CO2 reduction toward multicarbon alcohols - The microscopic world of catalysts & process conditions

“…Furthermore, it was shown, using Cu-Zn catalysts as an example, that the roughness factor of the surface directly influences the product distribution. Higher roughness correlated with higher FEs for C 2+ products ( da Silva et al., 2020 ). Figure 5 shows the influence of surface morphology on CO 2 RR in terms of C 2+ product distribution and the influence of Cu-Zn ratio on catalytic activity.…”

“… (D) Influence of the Cu:Zn ratio for cubic catalysts. Adapted from Journal of Electroanalytical Chemistry ( da Silva et al, 2020 ), applying terms of CC BY licens. …”

“… Adapted from Journal of Electroanalytical Chemistry ( da Silva et al, 2020 ), applying terms of CC BY licens. …”

Tracking heterogeneous structural motifs and the redox behaviour of copper–zinc nanocatalysts for the electrocatalytic CO2 reduction using operando time resolved spectroscopy and machine learning

“…9 A common route to further tune the product selectivity of Cu-based catalysts is the combination of copper with a secondary metal. Here, a popular option is to use a metal that can efficiently convert CO2 into CO (e.g., Ag, 10 Au 11,12 or Zn [13][14][15][16] ). Zn is of special interest for the development of practical bimetallic CO2RR catalysts, since it is abundant and inexpensive compared to Ag and Au.…”

“…The catalyst evolution, however, strongly depends on its composition, 19 particle size and shape. 14,20 The changes can be associated with morphological, structural and chemical transformations. Our incomplete understanding of these processes hinders the design of novel CO2RR catalysts.…”