One-pot synthesis of NiFe nanoarrays under an external magnetic field as an efficient oxygen evolution reaction catalyst.
Yujie MiaoQiuping HuangDan WenDongling XieBo HuangDunmin LinChenggang XuWen ZengFengyu XiePublished in: RSC advances (2023)
Designing and developing earth-abundant electrocatalysts for the oxygen evolution reaction (OER) in alkaline media is a critical element in the societal development of sustainable energy. MIL-53(Fe-Ni)/NF-2200Gs was synthesized under an external magnetic field. Such MIL-53(Fe-Ni)/NF-2200Gs show exceptionally high catalytic activity and require an overpotential of only 174 mV to drive a geometrical catalytic current density of 10 mA cm -2 in 1.0 M KOH, superior to RuO 2 and most Fe, Ni-based electrocatalysts. Our work emphasizes the optimization of catalytic activity originating from the improvement of the magnetic properties of the catalyst, which enhances the spin polarization and tailors the d-electron structure of cations, leading to outstanding OER activity. This work would open new opportunities to design and develop transition-metal-based nanometer arrays toward efficient and stable water oxidation in alkaline media for applications.
Keyphrases
- metal organic framework
- transition metal
- signaling pathway
- lps induced
- electron transfer
- pi k akt
- oxidative stress
- nuclear factor
- ionic liquid
- minimally invasive
- room temperature
- anaerobic digestion
- inflammatory response
- hydrogen peroxide
- gold nanoparticles
- density functional theory
- molecular dynamics
- cell proliferation
- high resolution
- toll like receptor
- reduced graphene oxide
- solar cells
- simultaneous determination