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Published on: May 2, 2014
Stable Hematite Nanosheet Photoanodes for Enhanced Photoelectrochemical Water Splitting
Piangjai Peerakiatkhajohn1, Jung-Ho Yun1, Hongjun Chen1
1Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, QLD, 4072, Australia.
Abstract:
A vertically grown hematite nanosheet film modified with Ag nanoparticles (NPs) and Co-Pi cocatalyst exhibits a remarkably high photocurrent density of 4.68 mA cm(-2) at 1.23 V versus RHE. The Ag NPs leads to significantly improved light harvesting and better charge transfer, while the Co-Pi facilitates a highly stable oxygen evolution process. This photoelectrode design provides more efficient photoelectrochemical systems for solar-energy conversion.
