Polyhedral Au-PdCore-Shell Nanocrystals as Highly Spectrally Responsive and Reusable Hydrogen Sensors in Aqueous Solution

被引：77
作者：
Chiu, Chun-Ya [1 ]
Huang, Michael H. [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 48期
关键词：
core-shell nanocrystals; gold; hydrogen sensing; palladium; surface plasmon resonance; SYSTEMATIC SHAPE EVOLUTION; SURFACE-PLASMON RESONANCE; OCTAHEDRAL STRUCTURES; GOLD NANOCRYSTALS; PD NANOPARTICLES; PALLADIUM; SENSITIVITY; FABRICATION; NANOCUBES; NANOWIRE;
D O I：
10.1002/anie.201306363
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Absorption signals absorption: The surface plasmon resonance absorption band of tetrahexahedral, octahedral, and cubic Au-Pd core-shell nanocrystals with gold nanocrystal cores was strongly red shifted upon hydrogen absorption into the Pd shell. This reversible spectral shift makes the nanocrystals promising recyclable hydrogen-gas sensors. Hydrogen absorption could even be detected visually with smaller core-shell octahedra (see picture). Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：12709 / 12713
页数：5
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