Fig. 1: Structural and chemical characterizations of Cu-SnO2 catalysts. | Nature Communications

Fig. 1: Structural and chemical characterizations of Cu-SnO2 catalysts.

From: Solar reduction of carbon dioxide on copper-tin electrocatalysts with energy conversion efficiency near 20%

Fig. 1: Structural and chemical characterizations of Cu-SnO2 catalysts.The alternative text for this image may have been generated using AI.

a A schematic route for the synthesis of CuO-SnO2 SER and CuO-SnO2 ALD catalysts. b XRD and (c) XPS of as-prepared CuO, CuO-SnO2 SER, CuO-SnO2 ALD and the ones after pre-reduction at −30 mA cm−2 for ~100 s. SEM images of as-prepared (d) CuO-SnO2 SER, (e) CuO-SnO2 ALD samples and pre-reduced (f) Cu-SnO2 SER, (g) Cu-SnO2 ALD catalysts. h Representative HRTEM images of pre-reduced Cu-SnO2 SER and lattice fringes corresponding to (i) Sn (200) and (j) Cu (111) on Cu-SnO2 SER catalyst. k Representative HRTEM images of pre-reduced Cu-SnO2 ALD and lattice fringes corresponding to (l) Cu2O (111) and (m) Cu (111) on Cu-SnO2 ALD catalyst. Scale bars: 200 nm for (d) to (g), 5 nm for (h) to (m). GDE, NWs and ALD denote gas diffusion electrode, nanowires and atomic layer deposition.

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