(Bi)carbonate Precipitation and Gas Diffusion Electrode Stability Coexist during Pulsed Electrochemical CO₂ Reduction

Francesco Bernasconi; Marta Mirolo; Nukorn Plainpan; Qing Wang; Peng Zeng; Jakub Drnec; Alessandro Senocrate; Corsin Battaglia

doi:10.1021/acsenergylett.4c03042

journal article·2025-02-14Open access

(Bi)carbonate Precipitation and Gas Diffusion Electrode Stability Coexist during Pulsed Electrochemical CO₂ Reduction

Francesco Bernasconi, Marta Mirolo, Nukorn Plainpan, Qing Wang, Peng Zeng, Jakub Drnec, Alessandro Senocrate, Corsin Battaglia

ACS Energy Letters· Volume 10· Issue 2

Publisher page

Source abstract

Abstract

Pulsed electrolysis is an effective strategy to stabilize the high selectivity of Cu gas diffusion electrodes toward C ≥2 products, the decrease of which over time under continuous operation is often ascribed to (bi)carbonate precipitation. Here, we demonstrate via operando wide-angle X-ray scattering that (bi)carbonate crystals precipitate even during pulsed electrolysis but without causing losses in C ≥2 product selectivity.

Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Molten salt chemistry and electrochemical processes · Electrochemical Analysis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Empa

Swiss Federal Laboratories for Materials Science and Technology

Department of Materials

ETH Zürich

Experimental Division

European Synchrotron Radiation Facility

The Scientific Center for Optical and Electron Microscopy (ScopeM)

Department of Information Technology and Electrical Engineering

Funding

NCCR Catalysis · Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung · Board of the Swiss Federal Institutes of Technology

References (15)

Show source-provided references

1. 10.1098/rsta.2008.014310.1098/rsta.2008.0143 ↗

2. 10.1149/1.208651510.1149/1.2086515 ↗

3. 10.1002/cssc.20190254710.1002/cssc.201902547 ↗

4. 10.1021/acsenergylett.0c0218410.1021/acsenergylett.0c02184 ↗

5. 10.1126/science.aay421710.1126/science.aay4217 ↗

6. 10.1039/D3EY00140G10.1039/D3EY00140G ↗

7. 10.1021/jacs.1c0344310.1021/jacs.1c03443 ↗

8. 10.1038/s41929-022-00760-z10.1038/s41929-022-00760-z ↗

9. 10.1021/acsenergylett.0c0240110.1021/acsenergylett.0c02401 ↗

10. 10.1021/jacs.2c0408110.1021/jacs.2c04081 ↗

11. 10.1016/j.joule.2021.05.01410.1016/j.joule.2021.05.014 ↗

12. 10.1149/1.222111310.1149/1.2221113 ↗

13. 10.1021/acsaem.2c0130810.1021/acsaem.2c01308 ↗

14. 10.1002/anie.20240692410.1002/anie.202406924 ↗

15. 10.1021/acscatal.4c0188410.1021/acscatal.4c01884 ↗