Fig. 2: Positive effect of reaction temperature on reaction rate and quantum efficiency in POCM. | Nature Communications

Fig. 2: Positive effect of reaction temperature on reaction rate and quantum efficiency in POCM.

From: Integrating photochemical and photothermal effects for selective oxidative coupling of methane into C2+ hydrocarbons with multiple active sites

Fig. 2: Positive effect of reaction temperature on reaction rate and quantum efficiency in POCM.

a, b Photocatalytic activity of Au/1%CeO2/ZnO (a) and Au/ZnO (b) at various temperatures and under 360 nm light irradiation with an intensity of 20 mW cm−2. c Catalytic activity of Au/1%CeO2/ZnO and Au/ZnO at various temperatures without light irradiation. d C2H6 production rate of Au/1%CeO2/ZnO at various temperatures and under 360 nm light irradiation with various intensity. e AQE for C2H6 production over Au/1%CeO2/ZnO and Au/ZnO at various temperatures. f Dependence of AQE for C2H6 production over Au/1%CeO2/ZnO on the incident light wavelength at 200 °C, together with the diffuse reflectance spectrum of Au/1%CeO2/ZnO for comparison. Reaction conditions: 197 mL min−1 of CH4 and 3 mL min−1 of air, 10 mg catalyst, a flow reactor that can provide external heating and allow illumination. Error bars represent standard deviations obtained from three independent measurements.

Back to article page