Research Update: Strategies for efficient photoelectrochemical water splitting using metal oxide photoanodes
Author(s) -
Seungho Cho,
JiWook Jang,
KunHong Lee,
Jae Sung Lee
Publication year - 2014
Publication title -
apl materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.571
H-Index - 60
ISSN - 2166-532X
DOI - 10.1063/1.4861798
Subject(s) - materials science , water splitting , dopant , oxide , nanotechnology , fabrication , metal , photoelectrochemical cell , catalysis , semiconductor , energy transformation , quantum dot , chemical engineering , doping , optoelectronics , photocatalysis , chemistry , metallurgy , electrode , medicine , alternative medicine , physics , pathology , electrolyte , engineering , thermodynamics , biochemistry
Photoelectrochemical (PEC) water splitting to hydrogen is an attractive method for capturing and storing the solar energy in the form of chemical energy. Metal oxides are promising photoanode materials due to their low-cost synthetic routes and higher stability than other semiconductors. In this paper, we provide an overview of recent efforts to improve PEC efficiencies via applying a variety of fabrication strategies to metal oxide photoanodes including (i) size and morphology-control, (ii) metal oxide heterostructuring, (iii) dopant incorporation, (iv) attachments of quantum dots as sensitizer, (v) attachments of plasmonic metal nanoparticles, and (vi) co-catalyst coupling. Each strategy highlights the underlying principles and mechanisms for the performance enhancements.open2
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