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

被引：78

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

页码：12709 / 12713

页数：5

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