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|Title:||Surface treatment of hematite photoanodes with zinc acetate for water oxidation||Authors:||Xi, Lifei
Bassi, Prince Saurabh
Chiam, Sing Yang
Mak, Wai Fatt
Tran, Phong D.
Loo, Say Chye Joachim
Wong, Lydia Helena
|Keywords:||DRNTU::Engineering::Materials||Issue Date:||2012||Source:||Xi, L., Bassi, P. S., Chiam, S. Y., Mak, W. F., Tran, P. D., Barber, J., et al. (2012). Surface treatment of hematite photoanodes with zinc acetate for water oxidation. Nanoscale, 4(15), 4430-4433.||Series/Report no.:||Nanoscale||Abstract:||A simple and inexpensive method to form a hematite photoanode for efficient water oxidation is reported. A very thin ZnO overlayer was deposited on top of a thin film of hematite and found, compared with non-treated hematite, to increase the photocurrent and reduce the onset potential for generating oxygen from water. After 3 cycles of ZnAc treatment, the photocurrent increased more than 40% to 1.08 mA/cm-2 at 0.23 V vs Ag/AgCl and onset potential for water oxidation shifted by -170 mV. It is proposed the ZnO overlayer changes the flat band potential of hematite and reduces the surface defects.||URI:||https://hdl.handle.net/10356/94963
|DOI:||10.1039/C2NR30862B||Rights:||© 2012 Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Nanoscale, Royal Society of Chemistry . It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1039/C2NR30862B ]||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MSE Journal Articles|
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