Titanium Doped Nanoporous Hematite Photoanode Modified with NiFeCoAlOOH Nanoparticles for Efficient Photoelectrochemical Water Splitting
Chinese Journal of Chemical Physics(2021)
摘要
Herein, we present the decoration of NiFeCoAlOOH nanoparticles onto titanium doped nanoporous hematite (Ti-PH) utilizing a simple electroless ligand-controlled oxidation method for photoelectrochemical water splitting. Owing to the improved oxygen evolution reaction kinetics and reduced charge transfer resistance, the resulting Ti-PH/NiFeCoAlOOH photoanode presents an excellent photocurrent density of 2.46 mA/cm at 1.23 V vs. RHE and good stability compared to Ti-PH or bare hematite. Furthermore, the onset potential of the photocurrent density is shifted cathodically by ∼60 mV with reference to the titanium doped nanoporous hematite. This work offers a promising method for designing high-performance, stable, and inexpensive catalysts for photoelectrochemical applications.
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关键词
Photoelectrochemical water splitting,Oxyhydroxide,Cocatalyst,Hematite Rn
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