p-Type PdO nanoparticles supported on n-type WO3 nanoneedles for hydrogen sensing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F16%3APU139906" target="_blank" >RIV/00216305:26220/16:PU139906 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.tsf.2016.08.053" target="_blank" >https://doi.org/10.1016/j.tsf.2016.08.053</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tsf.2016.08.053" target="_blank" >10.1016/j.tsf.2016.08.053</a>

Result language

angličtina

Original language name

p-Type PdO nanoparticles supported on n-type WO3 nanoneedles for hydrogen sensing

Original language description

We report the synthesis of palladium nanopartide (NP) decorated WO3 nanoneedles (NNs) employing a singlestep, aerosol assisted chemical vapor deposition approach. Two different Pd precursors were investigated in view of optimizing the morphology and the gas sensing performance of the resulting nanostructured films. In particular, palladium acetylacetonate was found to be more suitable than ammonium hexachloropalladate for obtaining n-type WO3 NNs uniformly decorated with well dispersed p-type PdO NPs. The active films could be directly deposited on the electrode area of microelectromechanical system-based resistive transducers. The morphology and chemical composition of the films was investigated by scanning electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy analysis. PdO-decorated WO3 NNs show a response toward hydrogen that is about 680 times higher than that of bare WO3 NNs. Finally, PdO-loaded sensors display extremely low-cross sensitivity to water vapor, which makes them remarkably immune to changes in the background humidity.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20506 - Coating and films

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Thin Solid Films

ISSN

0040-6090

e-ISSN

—

Volume of the periodical

618

Issue of the periodical within the volume

special issue

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

238-245

UT code for WoS article

000389164400003

EID of the result in the Scopus database

2-s2.0-84995783575