Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/73954
Title: Impact of testing temperature on the structure and catalytic properties of au nanotubes composites
Authors: Mashentseva, A. A.
Zdorovets, M. V.
Borgekov, D. B.
Issue Date: 2018
Publisher: Bulletin of Chemical Reaction Engineering and Catalysis
Citation: Mashentseva A. A. Impact of testing temperature on the structure and catalytic properties of au nanotubes composites / A. A. Mashentseva, M. V. Zdorovets, D. B. Borgekov // Bulletin of Chemical Reaction Engineering & Catalysis. — 2018. — Vol. 13. — Iss. 3. — P. 405-411. — DOI: 10.9767/bcrec.13.3.2127.405-411.
Abstract: In the paper, the catalytic activity of composites based on gold nanotubes and ion track membranes was studied using bench reaction of the p-nitrophenol (4-NP) reduction in the temperature range of 25-40 °C. The efficiency of the prepared catalysts was estimated on the rate constant of the reaction and by conversion degree of 4-NP to p-aminophenol (4-AP). The comprehensive evaluation of the structure was performed by X-ray diffraction and scanning electron microscopy. A decreasing of the composites activity was observed when the reaction were carried out at the temperature over 35 °C, due to an increased average crystallite size from 7.31±1.07 to 10.35±3.7 nm (after 1st run). In temperature range of 25-35 °C the efficiency of the composite catalyst was unchanged in 3 runs and decreases by 24-32 % after the 5th run. At the high temperature of 40 °C after the 5th run the composite become completely catalytically inert. Copyright © 2018 BCREC Group. All rights reserved.
Keywords: CATALYSIS
COMPOSITE MEMBRANE
GOLD NANOTUBES
ION TRACK MEMBRANES
CATALYSIS
COMPOSITE MEMBRANES
CRYSTALLITE SIZE
EFFICIENCY
NANOTUBES
RATE CONSTANTS
SCANNING ELECTRON MICROSCOPY
YARN
CATALYTIC PROPERTIES
COMPOSITE CATALYSTS
COMPOSITES ACTIVITIES
COMPREHENSIVE EVALUATION
GOLD NANOTUBES
ION TRACK MEMBRANES
TEMPERATURE RANGE
TESTING TEMPERATURE
CATALYST ACTIVITY
URI: http://hdl.handle.net/10995/73954
Access: cc-by-sa
RSCI ID: 38638015
SCOPUS ID: 85056278125
WOS ID: 000450212100002
PURE ID: 8318709
ISSN: 1978-2993
DOI: 10.9767/bcrec.13.3.2127.405-411
metadata.dc.description.sponsorship: Ministry of Education and Science of the Republic of Kazakhstan: АP05130797
This work was supported by the Ministry of Education and Science of the Republic of Kazakhstan under project АP05130797.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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