Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Formation of admixed phase during microwave assisted Cu ion exchange in mordenite. / Bogdanov, Dmitrii S.; Novikov, Roman G.; Pestsov, Oleg S.; Baranov, Denis A.; Shelyapina, Marina G.; Tsyganenko, Alexey A.; Kasatkin, Igor A.; Kalganov, Vladimir D.; Silyukov, Oleg I.; Petranovskii, Vitalii.
в: Materials Chemistry and Physics, Том 261, 124235, 01.03.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Formation of admixed phase during microwave assisted Cu ion exchange in mordenite
AU - Bogdanov, Dmitrii S.
AU - Novikov, Roman G.
AU - Pestsov, Oleg S.
AU - Baranov, Denis A.
AU - Shelyapina, Marina G.
AU - Tsyganenko, Alexey A.
AU - Kasatkin, Igor A.
AU - Kalganov, Vladimir D.
AU - Silyukov, Oleg I.
AU - Petranovskii, Vitalii
N1 - Funding Information: The studies were carried out at the Research Park of Saint Petersburg State University: Centre for X-ray Diffraction Studies, Centre of Thermal Analysis and Calorimetry, Interdisciplinary Resource Centre for Nanotechnology, Centre for Diagnostics of Functional Materials for Medicine, Pharmacology and Nanoelectronics. This work was supported by RFBR and CITMA according to the research project No. 18-53-34004 . Publisher Copyright: © 2021 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/3/1
Y1 - 2021/3/1
N2 - Emerging technologies aimed to tune properties of microporous materials, including zeolitic catalysts, involve microwave processing that accelerates chemical reactions and often increases efficiency of target materials. Here we report on the results of our comprehensive study of copper-exchanged mordenites obtained from sodium mordenite with Si/Al = 6.5 and CuSO4 solution using both conventional and microwave assisted ion-exchange procedures. The current study confirms that microwave irradiation not only enhance the ion exchange but also is accompanied by a chemical reaction resulting in formation of an antlerite admixed phase, which explains the over-exchange of copper ions. Fourier transform infrared studies evidence epitaxial growth of antlerite on the surface of mordenite particles. Annealing at 450 °C leads to the transformation of antlerite into mesoporous CuO. Altogether it suggests that the resulting composite material obtained by the microwave assisted ion-exchange procedure can be considered as a promising catalyst with several different types of active sites.
AB - Emerging technologies aimed to tune properties of microporous materials, including zeolitic catalysts, involve microwave processing that accelerates chemical reactions and often increases efficiency of target materials. Here we report on the results of our comprehensive study of copper-exchanged mordenites obtained from sodium mordenite with Si/Al = 6.5 and CuSO4 solution using both conventional and microwave assisted ion-exchange procedures. The current study confirms that microwave irradiation not only enhance the ion exchange but also is accompanied by a chemical reaction resulting in formation of an antlerite admixed phase, which explains the over-exchange of copper ions. Fourier transform infrared studies evidence epitaxial growth of antlerite on the surface of mordenite particles. Annealing at 450 °C leads to the transformation of antlerite into mesoporous CuO. Altogether it suggests that the resulting composite material obtained by the microwave assisted ion-exchange procedure can be considered as a promising catalyst with several different types of active sites.
KW - медь-обменные мордениты
KW - микроволновой ионообмен
KW - мезопористый CuO
KW - Copper-exchange mordenite
KW - FTIR
KW - Mesoporous CuO
KW - Microwave treatment
KW - XRD
UR - http://www.scopus.com/inward/record.url?scp=85099257753&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/eaaa2076-784e-3a36-a88f-2350a43689c9/
U2 - 10.1016/j.matchemphys.2021.124235
DO - 10.1016/j.matchemphys.2021.124235
M3 - Article
AN - SCOPUS:85099257753
VL - 261
JO - Materials Chemistry and Physics
JF - Materials Chemistry and Physics
SN - 0254-0584
M1 - 124235
ER -
ID: 72689262