DataVXACS Applied Energy MaterialsPaper
journal article·2021-04-26

Efficient Oxygen Evolution Electrocatalysis on CaFe2O4 and Its Reaction Mechanism

Yuuki Sugawara, Keigo Kamata, Atsushi Ishikawa, Yoshitaka Tateyama, Takeo Yamaguchi

ACS Applied Energy Materials· Volume 4· Issue 4
Publisher page
Source abstract

Abstract

Electrochemical water splitting demands highly active, easily produced, and cost-effective electrocatalysts for the oxygen evolution reaction (OER). Herein, we present an iron (Fe)/calcium (Ca)-based bimetallic oxide, CaFe2O4, which exhibits outstanding OER activity in alkaline media. The OER specific activity of CaFe2O4 is superior to those of previously reported Fe-based bimetallic oxides composed of alkaline-earth or rare-earth metals. Remarkably, it even surpasses that of the benchmark IrO2. Furthermore, the OER performance of CaFe2O4 is stable during repeated potential cycles without any significant current loss. Density functional theory calculations imply that the outstanding OER activity of CaFe2O4 is facilitated by an unconventional mechanism via direct formation of O–O bonds between two oxygen intermediates, which are adsorbed on a multi-iron site on the catalyst surface.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Electrochemical Analysis and Applications

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

Affiliations

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-17, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan

Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan

Precursory Research for Embryonic Science and Technology (PRESTO), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan

Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan

Funding

New Energy and Industrial Technology Development Organization · Ministry of Education, Culture, Sports, Science and Technology · Precursory Research for Embryonic Science and Technology

References (56)

Show source-provided references
1. 10.1002/anie.20100125910.1002/anie.201001259 ↗
2. 10.1021/cr100232610.1021/cr1002326 ↗
3. 10.1016/j.pecs.2009.11.00210.1016/j.pecs.2009.11.002 ↗
4. 10.1149/1.185698810.1149/1.1856988 ↗
5. 10.1021/jz201650710.1021/jz2016507 ↗
6. 10.1021/acsaem.9b0199610.1021/acsaem.9b01996 ↗
7. 10.1021/ja502379c10.1021/ja502379c ↗
8. 10.1039/C5EE02450A10.1039/C5EE02450A ↗
9. 10.1021/acsenergylett.6b0021910.1021/acsenergylett.6b00219 ↗
10. 10.1021/acsenergylett.7b0020610.1021/acsenergylett.7b00206 ↗
11. 10.1021/acsenergylett.8b0088810.1021/acsenergylett.8b00888 ↗
12. 10.1021/acscatal.9b0544510.1021/acscatal.9b05445 ↗
13. 10.1039/c2ra20839c10.1039/c2ra20839c ↗
14. 10.1016/0013-4686(84)85004-510.1016/0013-4686(84)85004-5 ↗
15. 10.1021/acs.chemrev.7b0005110.1021/acs.chemrev.7b00051 ↗
16. 10.1002/smll.20160379310.1002/smll.201603793 ↗
17. 10.1039/C4NR07243J10.1039/C4NR07243J ↗
18. 10.1021/acs.jpcc.8b0928710.1021/acs.jpcc.8b09287 ↗
19. 10.1021/acsomega.7b0014610.1021/acsomega.7b00146 ↗
20. 10.1021/acsami.8b0534310.1021/acsami.8b05343 ↗
21. 10.1039/C8CC02185F10.1039/C8CC02185F ↗
22. 10.1021/acsaem.8b0152510.1021/acsaem.8b01525 ↗
23. 10.1021/ja308723w10.1021/ja308723w ↗
24. 10.1021/acscatal.8b0144710.1021/acscatal.8b01447 ↗
25. 10.1038/nnano.2012.7210.1038/nnano.2012.72 ↗
26. 10.1149/2.036405jes10.1149/2.036405jes ↗
27. 10.1103/PhysRevB.59.175810.1103/PhysRevB.59.1758 ↗
28. 10.1103/PhysRevB.57.150510.1103/PhysRevB.57.1505 ↗
29. 10.1039/C5CP06292F10.1039/C5CP06292F ↗
30. 10.1021/acs.jpcc.8b0139710.1021/acs.jpcc.8b01397 ↗
31. 10.1038/s41467-019-10838-110.1038/s41467-019-10838-1 ↗
32. 10.1002/adfm.20190178310.1002/adfm.201901783 ↗
33. 10.1103/PhysRevLett.77.386510.1103/PhysRevLett.77.3865 ↗
34. 10.1103/PhysRevB.47.55810.1103/PhysRevB.47.558 ↗
35. 10.1103/PhysRevB.49.1425110.1103/PhysRevB.49.14251 ↗
36. 10.1103/PhysRevB.54.1116910.1103/PhysRevB.54.11169 ↗
37. 10.1016/0927-0256(96)00008-010.1016/0927-0256(96)00008-0 ↗
38. 10.1002/cctc.20100039710.1002/cctc.201000397 ↗
39. 10.1016/j.chemphys.2005.05.03810.1016/j.chemphys.2005.05.038 ↗
40. 10.1016/j.jelechem.2006.11.00810.1016/j.jelechem.2006.11.008 ↗
41. 10.1021/acs.jpcc.7b1074810.1021/acs.jpcc.7b10748 ↗
42. 10.1021/acsenergylett.9b0068610.1021/acsenergylett.9b00686 ↗
43. 10.1021/acscatal.6b0247910.1021/acscatal.6b02479 ↗
44. 10.1039/C7EE03457A10.1039/C7EE03457A ↗
45. 10.1021/acsaem.9b0196510.1021/acsaem.9b01965 ↗
46. 10.1021/acs.chemmater.5b0445710.1021/acs.chemmater.5b04457 ↗
47. 10.1021/acs.chemmater.8b0132110.1021/acs.chemmater.8b01321 ↗
48. 10.1039/D0SE01295E10.1039/D0SE01295E ↗
49. 10.1149/2.0301908jes10.1149/2.0301908jes ↗
50. 10.1039/C8NR03840F10.1039/C8NR03840F ↗
51. 10.1021/ja204046410.1021/ja2040464 ↗
52. 10.1039/c3ee41194j10.1039/c3ee41194j ↗
53. 10.1021/jp408585z10.1021/jp408585z ↗
54. 10.1021/acs.jpcc.9b0775110.1021/acs.jpcc.9b07751 ↗
55. 10.1021/acsomega.0c0425410.1021/acsomega.0c04254 ↗
56. 10.1038/ncomms924910.1038/ncomms9249 ↗