fig2
Figure 2. (A) Macroporous and microporous structure of gas-diffusion WO3 electrodes. (B) Membrane electrode assembly with an electrode area of 25 cm2, a stainless steel PEM-PEC cell with a 16 cm2 irradiation area, and the spectrum of a blue LED light source for the vapor-fed system (wavelength: 453 nm, irradiance: 7 mW cm-2, and temperature: 25 °C). Reproduced with permission from ref.[24], Copyright 2019, American Chemical Society.
