Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 753, Issue -, Pages 601-606Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.04.258
Keywords
Iron oxide; Electrochemical properties; Graphene oxide; Silver
Categories
Funding
- National Natural Science Foundation of China [21476262]
- Technology Project of Qingdao [14-2-4-108-jch]
- Fundamental Research Funds for the Central Universities [R1510059A]
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Solar-driven water splitting by photoelectrochemical method is a prospective approach for clean energy hydrogen production. Reduced graphene oxide (RGO) and Ag nanoparticles are deposited on alpha-Fe2O3 nanorod arrays by hydrothermal and photodeposition methods forming alpha-Fe2O3/RGO/Ag photoelectrode. An optimum photocurrent density is obtained at 0.72 mA/cm(2) with 0.23 V (1.23 V vs RHE), together with the maximum photoconversion efficiency of 0.15%, much higher than pure alpha-Fe2O3 of 0.07%. The enhanced photoelectrochemical properties could be resulted from its broadened light absorption, decreased electro-hole recombination rate and improved charge carriers transport. This work provides potential applications in fields of the photocatalyst and photo-water splitting. (C) 2018 Elsevier B.V. All rights reserved.
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