Fig. 3: Effect of the catalyst morphology on the reconstruction behaviour.
From: Hybrid oxide coatings generate stable Cu catalysts for CO2 electroreduction
a,b, Representative BF-TEM image of Cu@AlOxn=8 (a) and Cu/AlOx (b) before (left) and after 1 h CO2RR at −1.1 V versus RHE (right), respectively. Scale bars, 100 nm. c, Ratio FE(CH4)/FE(C2H4) as function of the catalyst morphology and c-ALD cycles. d, FT-IR spectra of Cu@AlOxn=x for n = 2, 8, 17 and 30 and Cu/AlOx, with ν(OH, free) at 3,360, 3,316 and 3,192 cm−1 and δ(H2O) Lewis at 1,630 cm−1 highlighted in grey. The peaks in the 1,550–1,450 cm−1 region correspond to OLAC added during the shell growth.
