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- W3154964314 abstract "In this work, the effect of Pd, Au and PdAu nanoparticles on sensor response of cobalt phthalocyanine films to hydrogen was studied. For this purpose, novel heterostructures based on cobalt phthalocyanine and PdAu nanoalloys were obtained by a combination of vacuum thermal evaporation and pulsed metalorganic chemical vapor deposition (MOCVD) and investigated as active layers for hydrogen detection. The structural features and phase composition of the prepared heterostructures were studied by the techniques of X-ray diffraction, transmission electron microscopy and electron diffraction. The concentration of metal nanoparticles in the samples was determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The chemiresistive sensor response of CoPc/M (M = Pd, Au, Pd 0.2 Au 0.8 and Pd 0.8 Au 0.2 ) to hydrogen (100–400 ppm, room temperature) was compared with that of bare CoPc films. It was shown that the sensor response of the investigated heterostructures to hydrogen (300 ppm) increased in the order CoPc (0.2%) < CoPc/Pd 0.2 Au 0.8 (1.9%) ~ CoPc/Au (2.2%) < CoPc/Pd (2.7%) < CoPc/Pd 0.8 Au 0.2 (5.6%). • Heterostructures based on cobalt phthalocyanine and PdAu nanoalloys were obtained. • Effect of dilution of Pd by Au using Pd-rich or Au-rich solid solutions was studied. • Effect of metal nanoparticles on sensor response to hydrogen was investigated." @default.
- W3154964314 created "2021-04-26" @default.
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- W3154964314 date "2021-05-01" @default.
- W3154964314 modified "2023-10-17" @default.
- W3154964314 title "Heterostructures based on Pd–Au nanoparticles and cobalt phthalocyanine for hydrogen chemiresistive sensors" @default.
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- W3154964314 doi "https://doi.org/10.1016/j.ijhydene.2021.03.082" @default.
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