Perovskite Oxide Nanosheets with Tunable Band‐Edge Potentials and High Photocatalytic Hydrogen‐Evolution Activity | Zendy

Maeda Kazuhiko | Zendy; Eguchi Miharu | Zendy; Oshima Takayoshi | Zendy

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Perovskite Oxide Nanosheets with Tunable Band‐Edge Potentials and High Photocatalytic Hydrogen‐Evolution Activity

Author(s) -

Maeda Kazuhiko,

Eguchi Miharu,

Oshima Takayoshi

Publication year - 2014

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.201408441

Subject(s) - nanosheet , photocatalysis , perovskite (structure) , materials science , oxide , band gap , methanol , quantum yield , yield (engineering) , irradiation , chemical engineering , enhanced data rates for gsm evolution , water splitting , hydrogen , nanotechnology , chemistry , catalysis , optoelectronics , optics , composite material , organic chemistry , metallurgy , physics , telecommunications , computer science , nuclear physics , engineering , fluorescence

Perovskite nanosheets of HCa 2− x Sr x Nb 3 O 10 and HCa 2 Nb 3− y Ta y O 10 with controlled band‐edge potentials were prepared. They worked as highly efficient heterogeneous photocatalysts for H 2 evolution from a water/methanol mixture under band‐gap irradiation. The activity was found to depend on the composition. The highest activity was obtained with HCa 2 Nb 2 TaO 10 nanosheets, recording an apparent quantum yield of approximately 80 % at 300 nm, which is the highest value for a nanosheet‐based photocatalyst reported to date.

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