Elaboration and characterization of nanoplate structured alpha-Fe2O3 films by Ag3PO4

Ke, Xuebin; Ren, Yajun; Wang, Hongyan; Wu, Quanping; Xue, Song; Zhang, Chuangli

Abstract

A new strategy for surface treatment of hematite nanoplates for efficient photoelectrochemical (PEC) performances is proposed. Silver orthophosphate (Ag₃PO₄) has been adopted to mediate the formation of α-Fe₂O₃ films. Phosphate ions in Ag₃PO₄ is found to cause a significant morphology change during annealing process, from β-FeOOH nanorod arrays to hematite nanoplates. Meanwhile, Ag ions is doped into α-Fe₂O₃ film. The obtained nanoplate structured Fe₂O₃ –Ag–P films demonstrate much higher photoelectrochemical performance as photoanodes than the bare Fe₂O₃ nanorod thin films. The effects of phosphate and silver ions on the morphology, surface characteristics and the PEC properties of the photoanodes are investigated.

Citation

Ke, X., Ren, Y., Wang, H., Wu, Q., Xue, S., & Zhang, C. (2016). Elaboration and characterization of nanoplate structured alpha-Fe2O3 films by Ag3PO4. Solar Energy, 135, 274-283. https://doi.org/10.1016/j.solener.2016.06.007

• Journal Article Type: Article
• Acceptance Date: Jun 2, 2016
• Online Publication Date: Jun 13, 2016
• Publication Date: Oct 1, 2016
• Deposit Date: Feb 13, 2017
• Publicly Available Date: Nov 23, 2017
• Journal: Solar energy
• Print ISSN: 0038-092X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 135
• Pages: 274-283
• DOI: https://doi.org/10.1016/j.solener.2016.06.007
• Keywords: Renewable Energy, Sustainability and the Environment; General Materials Science
• Public URL: https://hull-repository.worktribe.com/output/448064
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0038092X16301864
• Additional Information: Authors' accepted manuscript of article published in: Solar energy, 2016, v.135.
• Contract Date: Nov 23, 2017