Single-Phase Pyrochlore Y2Ir2O7 Electrocatalyst on the Activity of Oxygen Evolution Reaction
Source abstract
Abstract
Single-phase pyrochlore-type Y2Ir2O7 electrocatalyst was made through the sol–gel synthesis. This catalyst has high activity and stability toward oxygen evolution reaction (OER) in acid. Chronopotentiometry analysis shows no major changes in overpotential for more than 24 h measurement at 10 mA/cm2geo. Transmission electron microscopy shows no formation of a new shell layer after the OER tests. X-ray absorption spectroscopy (XAS) was used to examine the single-electron filling in the e″ orbital of Ir 5d states, which could contribute to the improved OER activity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Advanced Memory and Neural Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
Funding
University of Illinois at Urbana-Champaign
References (31)
Show source-provided references
1. 10.1126/science.324_125710.1126/science.324_1257 ↗
2. 10.1039/c2ee22554a10.1039/c2ee22554a ↗
3. 10.1038/nchem.149910.1038/nchem.1499 ↗
4. 10.1021/jz400595z10.1021/jz400595z ↗
5. 10.1021/acssuschemeng.7b0281510.1021/acssuschemeng.7b02815 ↗
6. 10.1149/2.0471712jes10.1149/2.0471712jes ↗
7. 10.1021/j100238a04810.1021/j100238a048 ↗
8. 10.1021/ja211526y10.1021/ja211526y ↗
9. 10.1002/anie.20161180410.1002/anie.201611804 ↗
10. 10.1021/jacs.7b0680810.1021/jacs.7b06808 ↗
11. 10.1021/ja506254g10.1021/ja506254g ↗
12. 10.1038/ncomms1105310.1038/ncomms11053 ↗
13. 10.1126/science.aad499810.1126/science.aad4998 ↗
14. 10.1126/science.121285810.1126/science.1212858 ↗
15. 10.1039/C6CS00343E10.1039/C6CS00343E ↗
16. 10.1126/science.aaf152510.1126/science.aaf1525 ↗
17. 10.1021/ja510442p10.1021/ja510442p ↗
18. 10.1002/aenm.20150099110.1002/aenm.201500991 ↗
19. 10.1021/jz201650710.1021/jz2016507 ↗
20. 10.1126/science.aaf505010.1126/science.aaf5050 ↗
21. 10.1021/acs.chemmater.7b0076610.1021/acs.chemmater.7b00766 ↗
22. 10.1126/science.aam709210.1126/science.aam7092 ↗
23. 10.1039/C5MH00260E10.1039/C5MH00260E ↗
24. 10.1038/srep3842910.1038/srep38429 ↗
25. 10.1002/ange.20140231110.1002/ange.201402311 ↗
26. 10.1103/PhysRevLett.112.11760110.1103/PhysRevLett.112.117601 ↗
27. 10.1088/0022-3719/16/32/01410.1088/0022-3719/16/32/014 ↗
28. 10.1103/PhysRevB.86.19513110.1103/PhysRevB.86.195131 ↗
29. 10.1021/jacs.6b0719910.1021/jacs.6b07199 ↗
30. 10.1103/PhysRevLett.105.21640710.1103/PhysRevLett.105.216407 ↗
31. 10.1021/ja00138a01010.1021/ja00138a010 ↗