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Honglei Zhang,Longzhu Li,Changhai Liu,Wenchang Wang,Penghua Liang,Naotoshi Mitsuzak,Zhidong Chen 대한금속·재료학회 2018 ELECTRONIC MATERIALS LETTERS Vol.14 No.3
This work provides a facile anodic electrodeposition method for synthesizing carbon coated α-Fe2O3 photoanode followedby annealing treatment with argon atmosphere. Compared with bare hematite photoanode, the carbon coated α-Fe2O3 photoanodesannealed at lower temperature (Fe2O3/C-L) and higher temperature (Fe2O3/C-H) have higher photocurrent densityas 0.3 and 0.5 mA cm−2 (at 1.23 V vs. RHE), respectively. The excellent PEC performance is attributed to the synergisticreaction of carbon and vacancy oxygen. The morphology and properties of the sample were characterized with scanningelectron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, UV–Vis spectra, X-raydiffractometry, X-ray photoelectron spectra, and photoelectrical measurements.