Enhancing the Water Splitting Efficiency of Sn-Doped Hematite Nanoflakes by Flame Annealing

Wang L, Lee CY, Mazare AV, Lee K, Müller J, Spiecker E, Schmuki P (2014)


Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Publisher: Wiley-VCH Verlag

Book Volume: 20

Pages Range: 77-82

Journal Issue: 1

DOI: 10.1002/chem.201303427

Abstract

The effect of flame annealing on the water-splitting properties of Sn decorated hematite (-Fe2O3) nanoflakes has been investigated. It is shown that flame annealing can yield a considerable enhancement in the maximum photocurrent under AM 1.5 (100mWcm(-2)) conditions compared to classic furnace annealing treatments. Optimizing the annealing time (10s at 1000 degrees C) leads to a photocurrent of 1.1mAcm(-2) at 1.23V (vs. RHE) with a maximum value 1.6mAcm(-2) at 1.6V (vs. RHE) in 1M KOH. The improvement in photocurrent can be attributed to the fast direct heating that maintains the nanoscale morphology, leads to optimized Sn decoration, and minimizes detrimental substrate effects.

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APA:

Wang, L., Lee, C.-Y., Mazare, A.V., Lee, K., Müller, J., Spiecker, E., & Schmuki, P. (2014). Enhancing the Water Splitting Efficiency of Sn-Doped Hematite Nanoflakes by Flame Annealing. Chemistry - A European Journal, 20(1), 77-82. https://doi.org/10.1002/chem.201303427

MLA:

Wang, Lei, et al. "Enhancing the Water Splitting Efficiency of Sn-Doped Hematite Nanoflakes by Flame Annealing." Chemistry - A European Journal 20.1 (2014): 77-82.

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