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. 2021 Jun 23;6(7):2539–2548. doi: 10.1021/acsenergylett.1c00618

Figure 4.

Figure 4

Schematic of the different applications in function of the current density and technology readiness level. The applications are, in order of increasing current density, photoelectrochemistry (PEC), flow batteries, bipolar membrane electrodialysis (BPMED, resource recovery), CO2 electrochemical reduction (CO2R), fuel cells (FC), and water electrolysis (HER).