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Goethite and Hematite Hybrid Nanosheet-Decorated YZnO NRs for Efficient Solar Water Splitting by Daniel Commandeur; Joshua McGuckin; Steven Firth; Rong Qian; Qiao Chen is a Materials Science article available to read on EtoBox.

What is Goethite and Hematite Hybrid Nanosheet-Decorated YZnO NRs for Efficient Solar Water Splitting about?

Hybrid metal-oxide nanostructures have drawn much attention recently because of their ability to overcome the disadvantages of each individual material to achieve highperformance solar water splitting. Using anodic electrochemical deposition, hybrid polycrystalline goethite (α-FeOOH) and hematite (α-Fe 2 O 3 ) nanosheets (GOE/HM NSs) were successfully synthesized on yttrium-doped ZnO nanorods (YZO NRs). The unique morphology, with GOE/HM NSs wrapped around the length of vertically aligned YZO NRs, is favorable for light harvesting, charge transfer, and charge transportation. The density and the effective surface area of NSs were optimized for achieving a fine balance between light absorption and charge transportation between the photoanode and the electrolyte. The samples showed much improved water splitting efficiency under both UV and visible-light excitation, which represents the synergistic effects of GEO/ HM NSs with YZO NRs. UV-vis absorption and incident photon-to-current conversion efficiency measurements demonstrated appropriate band alignment at interfaces, in addition to the reduced band gap energy. Electrochemical impedance spectroscopy measurements showed greatly reduc

Who reads Goethite and Hematite Hybrid Nanosheet-Decorated YZnO NRs for Efficient Solar Water Splitting?

Author

Daniel Commandeur; Joshua McGuckin; Steven Firth; Rong Qian; Qiao Chen

Publisher

American Chemical Society (ACS)

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)