Surface modification of α-Fe 2O 3 nanorod array photoanodes for improved light-induced water splitting

Shaohua Shen; Coleman X. Kronawitter; Jiangang Jiang; Liejin Guo; Samuel S. Mao

doi:10.1557/opl.2011.1045

Surface modification of α-Fe ₂O ₃ nanorod array photoanodes for improved light-induced water splitting

Shaohua Shen
, Coleman X. Kronawitter
, Jiangang Jiang
, Liejin Guo
, Samuel S. Mao

School of Energy and Power Engineering

LBL
Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

α-Fe ₂O ₃ 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-Fe ₂O ₃ nanorods, β-FeOOH nanorods obtained via ACG were coated with a thin layer of Cr ³⁺ precursor solution by spin coating, and then underwent the annealing treatment in air. Conducting polymer polypyrrole (PPy) decorated α-Fe ₂O ₃ nanorods were prepared by electrodeposition method using malic acid contained pyrrole aqueous solution. Primary results showed that the photocurrents of α-Fe ₂O ₃ nanorod array photoanodes were greatly enhanced by surface doping of Cr ³⁺, 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-Fe ₂O ₃ nanorod array photoanodes is currently conducted in our group.

Original language	English
Title of host publication	Renewable Fuels and Nanotechnology
Pages	80-85
Number of pages	6
DOIs	https://doi.org/10.1557/opl.2011.1045
State	Published - 2011
Event	2011 MRS Spring Meeting - San Francisco, CA, United States Duration: 25 Apr 2011 → 29 Apr 2011

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1326
ISSN (Print)	0272-9172

Conference

Conference	2011 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	25/04/11 → 29/04/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Access to Document

10.1557/opl.2011.1045

Cite this

@inproceedings{6572d91af2cc44e8937f7e0dd74c1646,

title = "Surface modification of α-Fe 2O 3 nanorod array photoanodes for improved light-induced water splitting",

abstract = "α-Fe 2O 3 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-Fe 2O 3 nanorods, β-FeOOH nanorods obtained via ACG were coated with a thin layer of Cr 3+ precursor solution by spin coating, and then underwent the annealing treatment in air. Conducting polymer polypyrrole (PPy) decorated α-Fe 2O 3 nanorods were prepared by electrodeposition method using malic acid contained pyrrole aqueous solution. Primary results showed that the photocurrents of α-Fe 2O 3 nanorod array photoanodes were greatly enhanced by surface doping of Cr 3+, 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-Fe 2O 3 nanorod array photoanodes is currently conducted in our group.",

author = "Shaohua Shen and Kronawitter, \{Coleman X.\} and Jiangang Jiang and Liejin Guo and Mao, \{Samuel S.\}",

year = "2011",

doi = "10.1557/opl.2011.1045",

language = "英语",

isbn = "9781618395238",

series = "Materials Research Society Symposium Proceedings",

pages = "80--85",

booktitle = "Renewable Fuels and Nanotechnology",

note = "2011 MRS Spring Meeting ; Conference date: 25-04-2011 Through 29-04-2011",

}

Shen, S, Kronawitter, CX, Jiang, J, Guo, L & Mao, SS 2011, Surface modification of α-Fe ₂O ₃ nanorod array photoanodes for improved light-induced water splitting. in Renewable Fuels and Nanotechnology. Materials Research Society Symposium Proceedings, vol. 1326, pp. 80-85, 2011 MRS Spring Meeting, San Francisco, CA, United States, 25/04/11. https://doi.org/10.1557/opl.2011.1045

Surface modification of α-Fe ₂O ₃ nanorod array photoanodes for improved light-induced water splitting. / Shen, Shaohua; Kronawitter, Coleman X.; Jiang, Jiangang et al.
Renewable Fuels and Nanotechnology. 2011. p. 80-85 (Materials Research Society Symposium Proceedings; Vol. 1326).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Surface modification of α-Fe 2O 3 nanorod array photoanodes for improved light-induced water splitting

AU - Shen, Shaohua

AU - Kronawitter, Coleman X.

AU - Jiang, Jiangang

AU - Guo, Liejin

AU - Mao, Samuel S.

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N2 - α-Fe 2O 3 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-Fe 2O 3 nanorods, β-FeOOH nanorods obtained via ACG were coated with a thin layer of Cr 3+ precursor solution by spin coating, and then underwent the annealing treatment in air. Conducting polymer polypyrrole (PPy) decorated α-Fe 2O 3 nanorods were prepared by electrodeposition method using malic acid contained pyrrole aqueous solution. Primary results showed that the photocurrents of α-Fe 2O 3 nanorod array photoanodes were greatly enhanced by surface doping of Cr 3+, 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-Fe 2O 3 nanorod array photoanodes is currently conducted in our group.

AB - α-Fe 2O 3 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-Fe 2O 3 nanorods, β-FeOOH nanorods obtained via ACG were coated with a thin layer of Cr 3+ precursor solution by spin coating, and then underwent the annealing treatment in air. Conducting polymer polypyrrole (PPy) decorated α-Fe 2O 3 nanorods were prepared by electrodeposition method using malic acid contained pyrrole aqueous solution. Primary results showed that the photocurrents of α-Fe 2O 3 nanorod array photoanodes were greatly enhanced by surface doping of Cr 3+, 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-Fe 2O 3 nanorod array photoanodes is currently conducted in our group.

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