PdO/PdO2 functionalized ZnO : Pd films for lower operating temperature H2 gas sensing

Nanoscale
Oleg LupanRainer Adelung

Abstract

Noble metals and their oxide nano-clusters are considered to be the most promising candidates for fabricating advanced H2 gas sensors. Through this work, we propose a novel strategy to grow and modulate the density of PdO/PdO2 nanoparticles uniformly on nanostructured Pd-doped ZnO (ZnO : Pd) films by a one-step solution approach followed by thermal annealing at 650 °C, and thus to detect ppm-level H2 gas in a selective manner. The gas sensing properties of such hybridized materials showed that the PdO-functionalized ZnO samples offer significantly improved H2 gas sensing properties in an operating temperature range of 25-200 °C. The deposition of ZnO : Pd films via a simple synthesis from chemical solutions (SCS) approach with an aqueous bath (at relatively low temperatures, <95 °C) is reported. Furthermore, the functionalization of palladium oxide nanoclusters by a simple but highly effective approach on ZnO : Pd film surfaces was performed and is reported here for the first time. The morphological, structural, vibrational, optical, chemical, and electronic properties were studied in detail and the mixed phases of palladium oxide nanoclusters on the ZnO surface were found. Sensor studies of the ZnO : Pd samples (in the range o...Continue Reading

References

Sep 1, 1991·Physical Review. B, Condensed Matter·J R McBrideW H Weber
Nov 25, 2003·Nature Materials·Zhengrong R TianHuifang Xu
Sep 16, 2004·Angewandte Chemie·Nicola PinnaMarkus Niederberger
Nov 16, 2007·Nano Letters·Takeshi KawanoLiwei Lin
Feb 27, 2010·Angewandte Chemie·Vineet DuaSanjeev K Manohar
Mar 30, 2010·Nanotechnology·Young Tack LeeWooyoung Lee
Jun 30, 2011·Nanoscale Research Letters·Mohammad Hussein Naseef AssadiSean Li
Feb 23, 2012·Scientific Reports·Fazel YavariNikhil Koratkar
Dec 17, 2014·Physical Chemistry Chemical Physics : PCCP·Yu-Ju ChiangFu-Ming Pan
Jan 16, 2015·Journal of Hazardous Materials·Akash KatochSang Sub Kim
Dec 15, 2015·Advanced Materials·Jun ZhangNicola Pinna
Mar 24, 2016·ACS Applied Materials & Interfaces·Martin DrobekSang Sub Kim
Jan 24, 2017·ACS Applied Materials & Interfaces·O LupanR Adelung
Mar 16, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Grzegorz Greczynski, Lars Hultman

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Citations

May 9, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Jie WuXinlu Wang
Jan 25, 2020·Nanotechnology·Qi JinJin-Ming Wu
Mar 17, 2021·ACS Applied Materials & Interfaces·Hien Duy MaiKi-Joon Jeon
Oct 29, 2021·ACS Applied Materials & Interfaces·Shuang YangYu Fu
Oct 30, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Adriana M FontesMarcos Malta

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Methods Mentioned

BETA
X-ray
transmission electron microscopy
thermal treatment

Software Mentioned

CasaXPS
Labview

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