Active pore materials based on sludges of Cr-Ni alloy electrochemical machining

Physico-chemical and adsorption-structural properties of the Cr-Ni alloy product elec- trochemical machining (EM) subjected to thermo treatment within temperature interval 100-950o C are considered. Using X-rays diffraction and DTA data the original EM product was established to be amorphous nic...

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Autor principal: Zaporojcenco, Anastasia
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Publicado: D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2014
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spelling oai:doaj.org-article:56097833ec2049a6b3b3b22401be04682021-11-21T12:09:52ZActive pore materials based on sludges of Cr-Ni alloy electrochemical machining 2537-63651810-648Xhttps://doaj.org/article/56097833ec2049a6b3b3b22401be04682014-07-01T00:00:00Zhttps://mjps.nanotech.md/archive/2014/article/3493https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Physico-chemical and adsorption-structural properties of the Cr-Ni alloy product elec- trochemical machining (EM) subjected to thermo treatment within temperature interval 100-950o C are considered. Using X-rays diffraction and DTA data the original EM product was established to be amorphous nickel hydroxide with little amount of nickel and iron oxides. Thermo treatment of the products leads to the changes both in their chemical and phase composition and their adsorption-structural properties. The isotherms of methanol adsorption-desorption by the products treated under different conditions were constructed. The values of specific surface and adsorption pore volume of the samples were calculated from the isotherm data. On the base of Ni-Cr alloy EM sludge new various pore inorganic materials with different composition and crystal structure have been obtained, which can be used as adsorbents for removing of different toxic admixtures from water solutions and as catalysts in some chemical reactions at synthesis of some organic compounds. Zaporojcenco, AnastasiaD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 271, Iss 7/3, Pp 27-30 (2014)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
Electronics
TK7800-8360
spellingShingle Physics
QC1-999
Electronics
TK7800-8360
Zaporojcenco, Anastasia
Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
description Physico-chemical and adsorption-structural properties of the Cr-Ni alloy product elec- trochemical machining (EM) subjected to thermo treatment within temperature interval 100-950o C are considered. Using X-rays diffraction and DTA data the original EM product was established to be amorphous nickel hydroxide with little amount of nickel and iron oxides. Thermo treatment of the products leads to the changes both in their chemical and phase composition and their adsorption-structural properties. The isotherms of methanol adsorption-desorption by the products treated under different conditions were constructed. The values of specific surface and adsorption pore volume of the samples were calculated from the isotherm data. On the base of Ni-Cr alloy EM sludge new various pore inorganic materials with different composition and crystal structure have been obtained, which can be used as adsorbents for removing of different toxic admixtures from water solutions and as catalysts in some chemical reactions at synthesis of some organic compounds.
format article
author Zaporojcenco, Anastasia
author_facet Zaporojcenco, Anastasia
author_sort Zaporojcenco, Anastasia
title Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_short Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_full Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_fullStr Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_full_unstemmed Active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_sort active pore materials based on sludges of cr-ni alloy electrochemical machining
publisher D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate 2014
url https://doaj.org/article/56097833ec2049a6b3b3b22401be0468
work_keys_str_mv AT zaporojcencoanastasia activeporematerialsbasedonsludgesofcrnialloyelectrochemicalmachining
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