Stable Hematite Nanosheet Photoanodes for Enhanced Photoelectrochemical Water Splitting

Piangjai Peerakiatkhajohn; Jung-Ho Yun; Hongjun Chen; Miaoqiang Lyu; Teera Butburee; Lianzhou Wang

doi:10.1002/adma.201601525

Stable Hematite Nanosheet Photoanodes for Enhanced Photoelectrochemical Water Splitting

Adv Mater. 2016 Aug;28(30):6405-10. doi: 10.1002/adma.201601525. Epub 2016 May 11.

Authors

Piangjai Peerakiatkhajohn¹, Jung-Ho Yun¹, Hongjun Chen¹, Miaoqiang Lyu¹, Teera Butburee¹, Lianzhou Wang¹

Affiliation

¹ Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, QLD, 4072, Australia.

PMID: 27167876
DOI: 10.1002/adma.201601525

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.

Keywords: hematites; nanosheets; photoelectrochemical water splitting.