dc.contributor.authorXi, Lifei
dc.contributor.authorChiam, Sing Yang
dc.contributor.authorMak, Wai Fatt
dc.contributor.authorTran, Phong D.
dc.contributor.authorBarber, James
dc.contributor.authorLoo, Say Chye Joachim
dc.contributor.authorWong, Lydia Helena
dc.identifier.citationXi, L., Chiam, S. Y., Mak, W. F., Tran, P. D., Barber, J., & Loo, S. C. J., et al. (2013). A novel strategy for surface treatment on hematite photoanode for efficient water oxidation. Chemical science, 4(1), 164-169.en_US
dc.description.abstractIn this paper, we report a novel strategy for surface treatment of hematite nanorods for efficient photo-driven water oxidation. This is the first report describing the growth of Sn treated hematite from α-FeOOH nanorod arrays in one step without substantially altering morphologies. With this treatment the photocurrent density increased from 1.24 for pristine hematite nanorods to 2.25 mA cm−2 at 1.23 V vs. RHE (i.e. 81% improvement). The increase in photocurrent density was also accompanied by improved incident-photon-to-current efficiencies and oxygen evolution. The photocurrent improvement is mainly attributed to a reduced electron–hole recombination at the hematite–electrolyte interface through the formation of FexSn1−xO4 layer at the hematite nanorod surface as shown by XPS, HRTEM, EDAX line scan analyses and PEC measurements.en_US
dc.relation.ispartofseriesChemical scienceen_US
dc.titleA novel strategy for surface treatment on hematite photoanode for efficient water oxidationen_US
dc.typeJournal Article
dc.contributor.researchEnergy Research Institute @NTUen_US
dc.contributor.researchResearch Techno Plazaen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US

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