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Issue 83, 2020
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Fabrication of wide-detection-range H2 sensors with controllable saturation behavior using Au@Pd nanoparticle arrays

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Abstract

Sensor saturation remains an obstacle to achieve reliable and quantitative detection of a specific gas at a high concentration. Herein, a new type of H2 sensor based on Au@Pd nanoparticle arrays (NAs) is demonstrated. While preserving a wide detection-range of 0.1–100% H2 concentrations, the Au@Pd NAs show a controllable saturation behavior depending on the Pd shell thickness. Mechanistically, this superior performance derives from the synergistic effect between the unique Au@Pd core–shell morphology and the rearrangement of Au@Pd nanoparticles during pre-conditioning. Our work represents a very promising strategy to design H2 sensors with enhanced performance at a high H2 concentration.

Graphical abstract: Fabrication of wide-detection-range H2 sensors with controllable saturation behavior using Au@Pd nanoparticle arrays

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Supplementary files

Article information


Submitted
14 Jul 2020
Accepted
09 Sep 2020
First published
09 Sep 2020

Chem. Commun., 2020,56, 12636-12639
Article type
Communication

Fabrication of wide-detection-range H2 sensors with controllable saturation behavior using Au@Pd nanoparticle arrays

H. Yang, S. Yang, Q. Li, X. Zhang, T. Wang, Z. Gao, L. Zhang, L. Guo and Y. Fu, Chem. Commun., 2020, 56, 12636
DOI: 10.1039/D0CC04834H

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