Fig. 1: Structural properties and catalytic activities. | Nature Communications

Fig. 1: Structural properties and catalytic activities.

From: Synergistic ultraviolet and visible light photo-activation enables intensified low-temperature methanol synthesis over copper/zinc oxide/alumina

Fig. 1: Structural properties and catalytic activities.The alternative text for this image may have been generated using AI.

a, b HR-TEM images and c EDS map of reduced CZA catalyst, scale bar, 25 nm (a) and 5 nm (b, c); d MeOH selectivity/space time yield (STY) at 200–300 °C under dark and 350–800 nm light irradiation (red dotted box indicates the highest photo-enhancement at 225 °C). Error bars indicate the deviation among three independent experiments; e time-on-stream MeOH yield under different light irradiation conditions (350–800 nm, 200–500 nm, and 420–800 nm, which corresponds to the excitation of Cu, ZnO, and Cu + ZnO, respectively). Reaction conditions: CO2: H2 = 1: 3.2, GHSV = 8758 h−1, P = 21 bar, T = 225 °C, light intensity = 600 mW cm−2 for all spectral ranges.

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