Electrometric monitoring of water adsorption by porous glass modified with copper(II) oxide |
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Authors: | V N Pak D V Formus A N Borisov |
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Institution: | 1.Herzen Russian State Pedagogical University,St. Petersburg,Russia |
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Abstract: | Modification of porous glass with copper(II) oxide with planar structure does not change the run of the water-adsorption isotherm, whereas in the case when nanoparticles are formed from the supported oxide, a cluster-type adsorption mechanism is operative when a relative pressure p/p 0 > 0.5 is reached. These specific features are reflected in the different dependences of the electrical resistance of the samples on humidity. It was shown that a porous glass with distributed copper(II)oxide planar layer can be used as a sensitive element of a resistive humidity sensor. |
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