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Stable Hematite Nanosheet Photoanodes for Enhanced Photoelectrochemical Water Splitting
Author(s) -
Peerakiatkhajohn Piangjai,
Yun JungHo,
Chen Hongjun,
Lyu Miaoqiang,
Butburee Teera,
Wang Lianzhou
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601525
Subject(s) - nanosheet , photocurrent , materials science , hematite , water splitting , oxygen evolution , chemical engineering , nanoparticle , nanotechnology , optoelectronics , photocatalysis , electrode , electrochemistry , catalysis , metallurgy , biochemistry , chemistry , engineering
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.