REFERENCES
1. Yang, Y.; Li, P.; Zheng, X.; et al. Anion-exchange membrane water electrolyzers and fuel cells. Chem. Soc. Rev. 2022, 51, 9620-93.
2. Xu, H.; Yuan, J.; He, G.; Chen, H. Current and future trends for spinel-type electrocatalysts in electrocatalytic oxygen evolution reaction. Coord. Chem. Rev. 2023, 475, 214869.
3. Yue, K.; Lu, R.; Gao, M.; et al. Polyoxometalated metal-organic framework superstructure for stable water oxidation. Science 2025, 388, 430-6.
4. Liu, H.; Liu, X.; Sun, A.; et al. Enhancing oxygen evolution electrocatalysis in heazlewoodite: unveiling the critical role of entropy levels and surface reconstruction. Adv. Mater. 2025, 37, e2501186.
5. Lu, M.; Zheng, Y.; Hu, Y.; et al. Artificially steering electrocatalytic oxygen evolution reaction mechanism by regulating oxygen defect contents in perovskites. Sci. Adv. 2022, 8, eabq3563.
6. Li, P.; Mao, Y.; Shin, H.; et al. Tandem amine scrubbing and CO2 electrolysis via direct piperazine carbamate reduction. Nat. Energy. 2025, 10, 1262-73.
7. Sun, Y.; Sun, Z.; Zhang, W.; et al. Fabricating freestanding electrocatalyst with bismuth‐iron dual active sites for efficient ammonia synthesis in neutral media. EcoEnergy 2023, 1, 186-96.
8. Lu, Z.; Chen, G.; Siahrostami, S.; et al. High-efficiency oxygen reduction to hydrogen peroxide catalysed by oxidized carbon materials. Nat. Catal. 2018, 1, 156-62.
9. Luo, X.; Zhao, H.; Tan, X.; et al. Fe-S dually modulated adsorbate evolution and lattice oxygen compatible mechanism for water oxidation. Nat. Commun. 2024, 15, 8293.
10. Malinovic, M.; Paciok, P.; Koh, E. S.; et al. Size‐controlled synthesis of IrO2 nanoparticles at high temperatures for the oxygen evolution reaction. Adv. Energy. Mater. 2023, 13, 2301450.
11. Mei, Y.; Chen, J.; Wang, Q.; et al. MoZn-based high entropy alloy catalysts enabled dual activation and stabilization in alkaline oxygen evolution. Sci. Adv. 2024, 10, eadq6758.
12. Sun, W.; Wang, Y.; Liu, S.; Lei, F.; Xie, J.; Tang, B. High-entropy amorphous oxycyanide as an efficient pre-catalyst for the oxygen evolution reaction. Chem. Commun. 2022, 58, 11981-4.
13. Xia, W.; Ming, C.; Shuang, L.; et al. Sea urchin-like La-doped MnO2 for electrocatalytic oxidation degradation of sulfonamide in water. Energy. Mater. 2025, 5, 500150.
14. Zhang, G.; Pei, J.; Wang, Y.; et al. Selective activation of lattice oxygen site through coordination engineering to boost the activity and stability of oxygen evolution reaction. Angew. Chem. Int. Ed. 2024, 63, e202407509.
15. Zheng, W.; Liang, G.; Liu, Q.; et al. The promise of high-entropy materials for high-performance rechargeable Li-ion and Na-ion batteries. Joule 2023, 7, 2732-48.
16. Olowoyo, J. O.; Kriek, R. J. Recent progress on bimetallic-based spinels as electrocatalysts for the oxygen evolution reaction. Small 2022, 18, e2203125.
17. Liu, S.; Shi, Y.; Wang, D.; et al. Multiple synergies on cobalt-based spinel oxide nanowires for electrocatalytic oxygen evolution. J. Colloid. Interface. Sci. 2024, 655, 685-92.
18. Huang, Z. F.; Xi, S.; Song, J.; et al. Tuning of lattice oxygen reactivity and scaling relation to construct better oxygen evolution electrocatalyst. Nat. Commun. 2021, 12, 3992.
19. Chang, C. W.; Ting, Y. C.; Yen, F. Y.; Li, G. R.; Lin, K. H.; Lu, S. Y. High performance anion exchange membrane water electrolysis driven by atomic scale synergy of non-precious high entropy catalysts. Energy. Mater. 2025, 5, 500117.
20. Seenivasan, S.; Kim, M.; Han, J. W.; Kim, D. Minimal doping approach to activate lattice oxygen participation in K2WO4 electrocatalysts for oxygen evolution reaction. Appl. Catal. B. Environ. Energy. 2024, 358, 124423.
21. Wang, X.; Hu, J.; Lu, T.; et al. Importing atomic rare-earth sites to activate lattice oxygen of spinel oxides for electrocatalytic oxygen evolution. Angew. Chem. Int. Ed. 2025, 64, e202415306.
22. Hu, Z.; Wu, H.; Yong, X.; et al. Advances in dual-site mechanisms for designing high-performance oxygen evolution electrocatalysts. eScience 2025, 5, 100403.
23. Einert, M.; Sezen, H.; Wu, Q.; et al. NiFe2O4 spinel thin film electrocatalysts: ordered mesoporous networks for driving the oxygen evolution reaction. ACS. Appl. Nano. Mater. 2025, 8, 14218-29.
24. Feng, Z.; Wang, P.; Cheng, Y.; et al. Recent progress on NiFe2O4 spinels as electrocatalysts for the oxygen evolution reaction. J. Electroanal. Chem. 2023, 946, 117703.
25. Zhong, H.; Gao, G.; Wang, X.; et al. Ion irradiation inducing oxygen vacancy-rich NiO/NiFe2O4 heterostructure for enhanced electrocatalytic water splitting. Small 2021, 17, e2103501.
26. Tang, J.; Wang, X.; Wang, Y.; et al. Active non-bonding oxygen mediate lattice oxygen oxidation on NiFe2O4 achieving efficient and stable water oxidation. Chin. J. Catal. 2025, 72, 164-75.
27. Avcl, Ö. N.; Sementa, L.; Fortunelli, A. Mechanisms of the oxygen evolution reaction on NiFe2O4 and CoFe2O4 inverse-spinel oxides. ACS. Catal. 2022, 12, 9058-73.
28. Zhang, X.; Zhang, J.; Ma, Z.; et al. Ag engineered NiFe-LDH/NiFe2O4 Mott-Schottky heterojunction electrocatalyst for highly efficient oxygen evolution and urea oxidation reactions. J. Colloid. Interface. Sci. 2024, 665, 313-22.
29. Peng, K.; Bhuvanendran, N.; Zhang, W.; Pasupathi, S.; Su, H. Strong interfacial coupling activates lattice oxygen of heterogeneous cerium hydroxide/nickel ferrite catalyst for robust oxygen evolution reaction performance. Composites. Part. B. Eng. 2026, 309, 113080.
30. Li, X.; Wang, M.; Fu, J.; Lu, F.; Li, Z.; Wang, G. Sulfurized NiFe2O4 electrocatalyst with in situ formed Fe-NiOOH nanoparticles to realize industrial-level oxygen evolution. Small 2024, 20, e2310040.
31. Yao, L.; Wu, X.; Geng, Z.; et al. Oxygen evolution reaction of amorphous/crystalline composites of NiFe(OH)x/NiFe2O4. ACS. Nano. 2025, 19, 5851-9.
32. Li, Y.; Zhang, Z.; Li, C.; et al. Introducing phosphorus into spinel nickel ferrite to enhance lattice oxygen participation towards water oxidation electrocatalysis. Appl. Catal. B. Environ. Energy. 2024, 355, 124116.
33. Zhang, Z.; Li, Y.; Zhong, Y.; et al. sp2/sp3-hybridized nitrogen-mediated electrochemical CO2 capture and utilization. Sci. Adv. 2025, 11, eadw6592.
34. Tao, Y.; Jiang, W.; Wang, H.; et al. Tuning electronic structure of hedgehog-like nickel cobaltite via molybdenum-doping for enhanced electrocatalytic oxygen evolution catalysis. J. Colloid. Interface. Sci. 2024, 657, 921-30.
35. Yang, B.; Bai, Z. P.; Cui, R. D.; Zeng, X. F.; Wang, J. X. A facile Mo doping strategy for high‐entropy spinel oxide towards efficient oxygen evolution reaction. AIChE. J. 2025, 71, e70087.
36. Li, X.; Gou, J.; Bo, L.; et al. Quenching induced Cu and F co-doping multi-dimensional Co3O4 with modulated electronic structures and rich oxygen vacancy as excellent oxygen evolution reaction electrocatalyst. J. Colloid. Interface. Sci. 2025, 690, 137288.
37. Yue, Y.; Zhong, X.; Sun, M.; et al. Fluorine engineering induces phase transformation in NiCo2O4 for enhanced active motifs formation in oxygen evolution reaction. Adv. Mater. 2025, 37, e2418058.
38. Cheng, J.; Zhang, Z.; Li, X.; et al. High-entropy spinel oxide nanoparticles with surface anionic Mo Species for seawater oxidation. ACS. Appl. Nano. Mater. 2025, 8, 14999-5007.
39. Ding, S.; Duan, J.; Chen, S. Recent advances of metal suboxide catalysts for carbon‐neutral energy applications. EcoEnergy 2024, 2, 45-82.
40. Hong, X.; Gao, Y.; Ji, M.; et al. Highly valent cobalt-manganese spinel nanowires induced by fluorine-doping for durable acid oxygen evolution reaction. J. Alloys. Compd. 2024, 1007, 176500.
41. Xiao, K.; Wang, Y.; Wu, P.; Hou, L.; Liu, Z. Q. Activating lattice oxygen in spinel ZnCo2O4 through filling oxygen vacancies with fluorine for electrocatalytic oxygen evolution. Angew. Chem. Int. Ed. 2023, 62, e202301408.
42. Ping, X.; Liu, Y.; Zheng, L.; et al. Locking the lattice oxygen in RuO2 to stabilize highly active Ru sites in acidic water oxidation. Nat. Commun. 2024, 15, 2501.
43. Li, Y.; Guo, H.; Zhao, J.; Zhang, Y.; Zhao, L.; Song, R. Te-doped NiFe2O4 stabilized by amorphous carbon layers derived from one-step topological transitions of NiFe LDHs with significantly enhanced oxygen evolution reaction. Chem. Eng. J. 2023, 464, 142604.
44. Xiang, W.; Hernandez, S.; Hosseini, P.; et al. Unveiling surface species formed on Ni-Fe spinel oxides during the oxygen evolution reaction at the atomic scale. Adv. Sci. 2025, 12, e2501967.
45. Li, Y.; Zhang, Z.; Li, C.; et al. Cation‐vacancy-induced reinforced electrochemical surface reconstruction on spinel nickel ferrite for boosting water oxidation. Adv. Funct. Mater. 2024, 35, 2417983.
46. He, Y.; Zhang, L.; Xiong, H.; Kang, X. Evolution of lattice defects in nickel ferrite spinel: Oxygen vacancy and cation substitution. J. Alloys. Compd. 2022, 917, 165494.
47. Zhang, H.; Zhao, Y.; Cheng, Z.; Jiang, J.; Fu, J.; Xu, Q. 2D NiFe2O4/Ni(OH)2 heterostructure-based self-supporting electrode with synergistic surface/interfacial engineering for efficient water electrooxidation. Small 2024, 20, e2405225.
48. Luong, T. N.; Doan, T. L. L.; Bacirhonde, P. M.; Park, C. H. A study on synthesis of an advanced electrocatalyst based on high-conductive carbon nanofibers shelled NiFe2O4 nanorods for oxygen evolution reaction. Int. J. Hydrogen. Energy. 2025, 99, 1108-18.
49. Triolo, C.; Moulaee, K.; Bellato, F.; et al. Interplay between alkaline water oxidation temperature, composition and performance of electrospun high-entropy non-equimolar (Cr,Mn,Fe,Co,Ni) oxide electrocatalysts. J. Power. Sources. 2025, 654, 237887.
50. Tan, J.; Ma, M.; Cheng, S.; et al. Isolated Mo-doped nickel-iron spinel catalyst with oxygen vacancy and high-density interfaces for oxygen evolution reaction. Int. J. Hydrogen. Energy. 2025, 137, 73-82.
51. Wu, W.; Liu, B.; Xu, X.; Jing, P.; Li, L.; Zhang, J. Synergistically regulating the electronic structure and stabilizing the lattice oxygen of spinel cobalt oxide by Mo and Pr dual doping to enhance acidic oxygen evolution performance. Inorg. Chem. 2025, 64, 12174-88.
52. Wang, Y.; Feng, H.; Chai, D. F.; et al. Rapid and in-depth reconstruction of fluorine-doped bimetallic oxide in electrocatalytic oxygen evolution processes. J. Colloid. Interface. Sci. 2025, 684, 84-94.
53. Zhao, H.; Zhu, L.; Yin, J.; et al. Stabilizing lattice oxygen through Mn doping in NiCo2O4-δ spinel electrocatalysts for efficient and durable acid oxygen evolution. Angew. Chem. Int. Ed. 2024, 63, e202402171.
54. Peng, Y.; Huang, C.; Huang, J.; et al. Filling octahedral interstices by building geometrical defects to construct active sites for boosting the oxygen evolution reaction on NiFe2O4. Adv. Funct. Mater. 2022, 32, 2201011.
