Yue HU, Lin AN, Xin HAN, Chengyi HOU, Hongzhi WANG, Yaogang LI, Qinghong ZHANG. RhO2 Modified BiVO4 Thin Film Photoanodes: Preparation and Photoelectrocatalytic Water Splitting Performance [J]. Journal of Inorganic Materials, 2022, 37(8): 873
- Journal of Inorganic Materials
- Vol. 37, Issue 8, 873 (2022)
1. (a) XRD patterns and XPS spectra of (b) Bi4f, (c) V2p, (d) Rh3d of all BiVO4/RhO2 photoanodes
2. (a, b) Low-magnification and (c, d) high-magnification FESEM images of bare BiVO4 surface and BiVO4/0.1-RhO2 photoanodes, and (e) high-magnification SEM image with elemental mappings of the BiVO4/0.1-RhO2 photoanode
3. (a, c) TEM and (b, d) HRTEM images of (a, b) bare BiVO4 and (c, d) BiVO4/0.1-RhO2 photoanodes
4. (a) UV-Vis DRS spectra and (b) (αhν ) 2vs hν tauc plots of BiVO4/RhO2 photoanodes
5. (a) Liner sweep voltammetry curves and (b) photocurrent response plots of BiVO4/RhO2 photoanodes in 1.0 mol/L Na2SO3 (pH8.5) electrolyte
6. (a) Liner sweep voltammetry curves and (b) photocurrent response plots of all BiVO4/RhO2 photoanodes in 0.5 mol/L Na2SO4 (pH6.8) electrolyte
7. Nyquist plots of the BiVO4/RhO2 photoanodes
8. (a) Photocurrent stability of the BiVO4/0.1-RhO2 photoanode in 1.0 mol/L Na2SO3 (pH8.5) under visible-light illumination, and (b) XRD patterns of the BiVO4/0.1-RhO2 photoanodes before and after illumination, respectively
9. (a) Hydrogen and (b) oxygen evolution vs. reaction time per illuminated area for bare BiVO4 and BiVO4/RhO2 photoanodes under visible-light irradiation with the electrolyte of 1.0 mol/L Na2SO3 (pH8.5) as hole scavenger
10. Schematic diagram depicting PEC water splitting of the RhO2-modified BiVO4 photoanode under visible light irradiation
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