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Surface Modification of α-Fe2O3 Nanorod Array Photoanodes for Improved Light-Induced Water Splitting

Published online by Cambridge University Press:  07 July 2011

Shaohua Shen,
Coleman X. Kronawitter,
Jiangang Jiang,
Liejin Guo and
Samuel S. Mao
Shaohua Shen
Affiliation:
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Coleman X. Kronawitter
Affiliation:
Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA94720, USA
Jiangang Jiang
Affiliation:
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Liejin Guo
Affiliation:
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
Samuel S. Mao
Affiliation:
Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA94720, USA
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Abstract

α-Fe2O3 nanorod arrays were fabricated by a low-temperature aqueous chemical growth (ACG) technique and followed by an annealing process. For the surface doping of α-Fe2O3 nanorods, β-FeOOH nanorods obtained via ACG were coated with a thin layer of Cr3+ precursor solution by spin coating, and then underwent the annealing treatment in air. Conducting polymer polypyrrole (PPy) decorated α-Fe2O3 nanorods were prepared by electrodeposition method using malic acid contained pyrrole aqueous solution. Primary results showed that the photocurrents of α-Fe2O3 nanorod array photoanodes were greatly enhanced by surface doping of Cr3+, as well as PPy decoration. This might be due to the retarded charge recombination and promoted surface reaction rate of photogenerated holes with water. Further investigation on surface modification of α-Fe2O3 nanorod array photoanodes is currently conducted in our group.

Keywords

dopantenergy generationnanostructure

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1326: Symposium F – Renewable Fuels and Nanotechnology , 2011, mrss11-1326-f08-06
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

[1] Fujishima, A. and Honda, K., Nature 238, 37 (1972).10.1038/238037a0Google Scholar
[2] Alexander, B. D., Kulesza, P. J., Rutkowska, I., Solarska, R. and Augustynski, J., J. Mater. Chem. 18, 2298 (2008).10.1039/b718644dGoogle Scholar
[3] Chen, X., Shen, S., Guo, L. and Mao, S. S., Chem. Rev. 110, 6503 (2010).10.1021/cr1001645Google Scholar
[4] Ohmori, T., Takahashi, H., Mametsuka, H. and Suzuki, E., Phys. Chem. Chem. Phys. 2, 3519 (2000).10.1039/b003977mGoogle Scholar
[5] Cherepy, N. J., Liston, D. B., Lovejoy, J. A., Deng, H. and Zhang, J. Z., J. Phys. Chem. B 102, 770 (1998).10.1021/jp973149eGoogle Scholar
[6] Ingler, J. W. B., Baltrus, J. P. and Khan, S. U. M., J. Am. Chem. Soc. 126, 10238 (2004).10.1021/ja048461yGoogle Scholar
[7] Ingler, J. W. B. and Khan, S. U. M., Int. J. Hydrogen Energy 30, 821 (2005).10.1016/j.ijhydene.2004.06.014Google Scholar
[8] Ingler, J. W. B. and Khan, S. U. M., Thin Solid Films 461, 301 (2004).10.1016/j.tsf.2004.01.094Google Scholar
[9] Glasscock, J. A., Barnes, P. R. F., Plumb, I. C. and Savvides, N., J. Phys. Chem. C 111, 16477 (2007).10.1021/jp074556lGoogle Scholar
[10] Kumari, S., Singh, A. P., Deva, Sonal D., Shrivastav, R., Dass, S. and Satsangi, V. R., Int. J. Hydrogen Energy 35, 3985 (2010).10.1016/j.ijhydene.2010.01.101Google Scholar
[11] Hu, Y. S., Kleiman-Shwarsctein, A., Forman, A. J., Hazen, D., Park, J. N. and McFarland, E. W., Chem. Mater. 20, 3803 (2008).10.1021/cm800144qGoogle Scholar
[12] Kleiman-Shwarsctein, A., Hu, Y. S., Forman, A. J., Stucky, G. D. and McFarland, E. W., J. Phys. Chem. C 112, 15900 (2008).10.1021/jp803775jGoogle Scholar
[13] Sartoretti, C. J., Alexander, B. D., Solarska, R., Rutkowska, I. A. and Augustynski, J., J. Phys. Chem. B 109, 13685 (2005).10.1021/jp051546gGoogle Scholar
[14] Jang, J. S., Lee, J., Ye, H., Fan, F. R. F. and Bard, A. J., J. Phys. Chem. C 113, 6719 (2009).10.1021/jp8109429Google Scholar
[15] Cesar, I., Kay, A., Martinez, J. A. G. and Grätzel, M., J. Am. Chem. Soc. 128, 4582 (2006).10.1021/ja060292pGoogle Scholar
[16] Kay, A., Cesar, I. and Grätzel, M., J. Am. Chem. Soc. 128, 15714 (2006).10.1021/ja064380lGoogle Scholar
[17] Tilley, S. D., Cornuz, M., Sivula, K. and Grätzel, M., Angew. Chem. Int. Ed. 49, 6405 (2010).10.1002/anie.201003110Google Scholar
[18] Kleiman-Shwarsctein, A., Hu, Y. S., Stucky, G. D. and McFarland, E. W., Electrochem. Commun. 11, 1150 (2009).10.1016/j.elecom.2009.03.034Google Scholar
[19] Zhong, D. K., Sun, J., Inumaru, H. and Gamelin, D. R., J. Am. Chem. Soc. 131, 6086 (2009).10.1021/ja9016478Google Scholar
[20] Kay, A., Cesar, I. and Grätzel, M., J. Am. Chem. Soc. 128, 15714 (2006).10.1021/ja064380lGoogle Scholar
[21] Sivula, K., Zboril, R., Formal, F. L., Robert, R., Weidenkaff, A., Tucek, J., Frydrych, J. and Grätzel, M., J. Am. Chem. Soc. 132, 7436 (2010).10.1021/ja101564fGoogle Scholar
[22] Duret, A. and Grätzel, M., J. Phys. Chem. B 109, 17184 (2005).10.1021/jp044127cGoogle Scholar
[23] Vayssieres, L., Beermann, N., Lindquist, S. E. and Hagfeldt, A., Chem. Mater. 13, 233 (2001).10.1021/cm001202xGoogle Scholar
[24] Beermann, N., Vayssieres, L., Lindquist, S. E. and Hagfeldt, A., J. Electrochem. Soc. 147, 2456 (2000).10.1149/1.1393553Google Scholar
[25] Mao, A., Han, G. Y. and Park, J. H.. J. Mater. Chem. 20, 2247 (2010).10.1039/b921965jGoogle Scholar
[26] Zhang, Z., Hossain, M. F. and Takahashi, T., Appl. Catal. B: Environ. 95, 423 (2010).10.1016/j.apcatb.2010.01.022Google Scholar