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Phosphate Doping into Monoclinic BiVO 4 for Enhanced Photoelectrochemical Water Oxidation Activity
Author(s) -
Jo Won Jun,
Jang JiWook,
Kong Kijeong,
Kang Hyun Joon,
Kim Jae Young,
Jun Hwichan,
Parmar K. P. S.,
Lee Jae Sung
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201108276
Subject(s) - monoclinic crystal system , dielectric spectroscopy , doping , phosphate , photocatalysis , photocurrent , electrochemistry , visible spectrum , materials science , chemistry , chemical engineering , inorganic chemistry , optoelectronics , electrode , crystal structure , catalysis , crystallography , organic chemistry , engineering
A monoclinic BiVO 4 lattice was doped with phosphate to enhance photoelectrochemical and photocatalytic water oxidation activity under visible light by a factor of about 30 compared with pristine BiVO 4 . Electrochemical impedance spectroscopy measurements and density functional calculations revealed that much improved charge transfer characteristics of BiVO 4 are mainly responsible for the greatly enhanced photoelectrochemical activity.