Effect of the Zeolitic Matrix on the Reduction Process of Cu{2+} Cations in Clinoptilolite, Mordenite and Erionite; Advanced Materials Research : Advanced materials, synthesis, development and application; Vol. 880 : Prospects of Fundamental Sciences Development (PFSD-2013)

ग्रंथसूची विवरण
Parent link:Advanced Materials Research : Advanced materials, synthesis, development and application: Scientific Journal
Vol. 880 : Prospects of Fundamental Sciences Development (PFSD-2013).— 2014.— [P. 48-52]
निगमित लेखक: Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра технологии органических веществ и полимерных материалов (ТОВПМ)
अन्य लेखक: Rodríguez-Iznaga I., Petranovskii V., Miguel Ángel Hernández Espinosa, Barraza F. C., Pestryakov A. N. Aleksey Nikolaevich
सारांश:Title screen
Three different zeolites (erionite, mordenite and natural clinoptilolite) were used to study influence of zeolite topology on the state of copper during ion-exchange and following reduction in hydrogen flow. This comparative study clearly demonstrates the influence of used zeolite matrices on the process of implantation of copper nanospecies. Starting from the ion-exchange, the alterations in the state of Cu{2+} ions start to be evident due to variations of the intensity of charge transfer band. Copper ions start to reduce at specific temperatures depending on the type of zeolite matrix. Copper plasma resonance band change its shape and position for different zeolites. In the case of Cu-CLI samples this band change both the shape and position for different temperature of reduction. These observations permit to suggest that the mechanism of copper ion reduction and agglomeration to form copper nanoparticles noticeably depend on the type of zeolite matrix. This mechanism is more complex for the Cu CLI than for the Cu-MOR and Cu-ERI systems. Copper nanoparticles formed at low temperatures in the case of Cu-CLI samples undergo changes while temperature of reduction grow.
Режим доступа: по договору с организацией-держателем ресурса
भाषा:अंग्रेज़ी
प्रकाशित: 2014
श्रृंखला:Diagnostics and Engineering of Novel Materials
विषय:
ऑनलाइन पहुंच:http://dx.doi.org/10.4028/www.scientific.net/AMR.880.48
स्वरूप: इलेक्ट्रोनिक पुस्तक अध्याय
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=640656

MARC

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330 |a Three different zeolites (erionite, mordenite and natural clinoptilolite) were used to study influence of zeolite topology on the state of copper during ion-exchange and following reduction in hydrogen flow. This comparative study clearly demonstrates the influence of used zeolite matrices on the process of implantation of copper nanospecies. Starting from the ion-exchange, the alterations in the state of Cu{2+} ions start to be evident due to variations of the intensity of charge transfer band. Copper ions start to reduce at specific temperatures depending on the type of zeolite matrix. Copper plasma resonance band change its shape and position for different zeolites. In the case of Cu-CLI samples this band change both the shape and position for different temperature of reduction. These observations permit to suggest that the mechanism of copper ion reduction and agglomeration to form copper nanoparticles noticeably depend on the type of zeolite matrix. This mechanism is more complex for the Cu CLI than for the Cu-MOR and Cu-ERI systems. Copper nanoparticles formed at low temperatures in the case of Cu-CLI samples undergo changes while temperature of reduction grow. 
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