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- W4313537058 startingPage "106593" @default.
- W4313537058 abstract "Commercially viable generation of “green” hydrogen fuel by solar-driven water splitting requires the design of low-cost photoelectrodes and photo-devices with high photoelectrochemical performance. In this regard, conductive and easily fabricated 3D-oxide ceramics with nanosized grains and high porosity are promising as a substrate with a large surface area to host photocatalytic coatings. To test this approach, hematite photoelectrodes have been grown by metal-organic chemical vapor deposition onto free-standing SnO2-based ceramics. The photoanodes formed onto Sb2O5-SnO2, CuO-Sb2O5-SnO2, and on MoO3-Sb2O5-SnO2 substrates in aqueous 1 M NaOH under 1 sun irradiation exhibit photocurrent densities of 0.44 mA/cm2, 0.56 mA/cm2, and 0.39 mA/cm2 at 1.23 V vs. RHE, respectively. The porosity of ceramics results in the 3D growth of a thin hematite coating on ceramic grains in the substrate to a depth of ca. 3 μm. The obtained photoelectrodes are discussed based on the data of photoelectrochemical measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and Raman spectroscopy. Routes to improved performance are discussed." @default.
- W4313537058 created "2023-01-06" @default.
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- W4313537058 date "2023-01-01" @default.
- W4313537058 modified "2023-10-10" @default.
- W4313537058 title "Porous and conductive SnO2 ceramics as a promising nanostructured substrate to host photocatalytic hematite coatings: Towards low cost solar-driven water splitting" @default.
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- W4313537058 doi "https://doi.org/10.1016/j.catcom.2022.106593" @default.
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