Fig. 1: Pulsed electrolysis on Ag electrode. | Nature Communications

Fig. 1: Pulsed electrolysis on Ag electrode.

From: Molecular level insights on the pulsed electrochemical CO2 reduction

Fig. 1: Pulsed electrolysis on Ag electrode.

a Schematic of Ag catalyzed CO2RR under either static or pulsed electrolysis at a given Ec of − 1.1 V vs. RHE but different Ea of − 0.2 or + 0.7 V vs. RHE. b CO2RR products distribution in H-type cell. The error bars represent six independent measurements. Real-time production of (c) H2, (d) CO, and (e) depletion of CO2 observed by DEMS during the three electrolysis methods within 0.1 M CO2-saturated CsHCO3 electrolyte, together with (f) histogram of electric charge normalized mass ion signals. g Simulated 1-D diffusion profiles for surface CO2 concentration and pH as a function of applied voltage and electrolysis duration. All potentials were referenced to the RHE scale. Typical solution resistance in 0.1 M CO2-saturated CsHCO3 is determined as 15 ± 2 Ω and 35 ± 2 Ω for H-type cell and for DEMS flow cell, respectively. The potentials applied were compensated at an 85% level. Source data for this figure are provided in the Source Data file.

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