Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports
Само за регистроване кориснике
2017
Аутори
Bajuk-Bogdanović, DanicaPopa, Alexandru
Uskoković-Marković, Snežana
Holclajtner-Antunović, Ivanka
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Raman and FTIR spectroscopy are powerful techniques used to characterize or observe alterations in the structure or properties of Keggin type heteropoly acids, microporousimesoporous materials, as well as their composites. These methods were applied in this study for investigation of 12-tungstophosphoric acid (WPA) supported as active phase on zeolites (H-BEA and NaY-zeolite) and mesoporous molecular sieves (TiO2, MCM-41, SBA-15). It has been shown that important information on interaction of heteropoly acid and the support can be obtained by the applied vibrational spectroscopic methods. Obtained results show how interaction of WPA with different supports depends on the nature and properties of both, active phase and the support. In the case of microporous supports such as BEA or NaY zeolites, the basicity of the support, i.e., ratio of Si/Al, strongly determines interaction between WPA species and surface of the support. In the case of mesoporous silica supports, WPA is well disperse...d over the support without strong interaction. However, TiO2 causes strong and complex interaction with WPA.
Кључне речи:
Tungstophosphoric acid / Microporous / Mesoporous / Raman / Infrared / CompositesИзвор:
Waste Management & Research, 2017, 92, 151-161Издавач:
- Elsevier Science BV, Amsterdam
Финансирање / пројекти:
- Електропроводни и редокс-активни полимери и олигомери: синтеза, структура, својства и примена (RS-MESTD-Basic Research (BR or ON)-172043)
DOI: 10.1016/j.vibspec.2017.06.007
ISSN: 0924-2031
WoS: 000413125500018
Scopus: 2-s2.0-85021631595
Институција/група
PharmacyTY - JOUR AU - Bajuk-Bogdanović, Danica AU - Popa, Alexandru AU - Uskoković-Marković, Snežana AU - Holclajtner-Antunović, Ivanka PY - 2017 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/2879 AB - Raman and FTIR spectroscopy are powerful techniques used to characterize or observe alterations in the structure or properties of Keggin type heteropoly acids, microporousimesoporous materials, as well as their composites. These methods were applied in this study for investigation of 12-tungstophosphoric acid (WPA) supported as active phase on zeolites (H-BEA and NaY-zeolite) and mesoporous molecular sieves (TiO2, MCM-41, SBA-15). It has been shown that important information on interaction of heteropoly acid and the support can be obtained by the applied vibrational spectroscopic methods. Obtained results show how interaction of WPA with different supports depends on the nature and properties of both, active phase and the support. In the case of microporous supports such as BEA or NaY zeolites, the basicity of the support, i.e., ratio of Si/Al, strongly determines interaction between WPA species and surface of the support. In the case of mesoporous silica supports, WPA is well dispersed over the support without strong interaction. However, TiO2 causes strong and complex interaction with WPA. PB - Elsevier Science BV, Amsterdam T2 - Waste Management & Research T1 - Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports VL - 92 SP - 151 EP - 161 DO - 10.1016/j.vibspec.2017.06.007 ER -
@article{ author = "Bajuk-Bogdanović, Danica and Popa, Alexandru and Uskoković-Marković, Snežana and Holclajtner-Antunović, Ivanka", year = "2017", abstract = "Raman and FTIR spectroscopy are powerful techniques used to characterize or observe alterations in the structure or properties of Keggin type heteropoly acids, microporousimesoporous materials, as well as their composites. These methods were applied in this study for investigation of 12-tungstophosphoric acid (WPA) supported as active phase on zeolites (H-BEA and NaY-zeolite) and mesoporous molecular sieves (TiO2, MCM-41, SBA-15). It has been shown that important information on interaction of heteropoly acid and the support can be obtained by the applied vibrational spectroscopic methods. Obtained results show how interaction of WPA with different supports depends on the nature and properties of both, active phase and the support. In the case of microporous supports such as BEA or NaY zeolites, the basicity of the support, i.e., ratio of Si/Al, strongly determines interaction between WPA species and surface of the support. In the case of mesoporous silica supports, WPA is well dispersed over the support without strong interaction. However, TiO2 causes strong and complex interaction with WPA.", publisher = "Elsevier Science BV, Amsterdam", journal = "Waste Management & Research", title = "Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports", volume = "92", pages = "151-161", doi = "10.1016/j.vibspec.2017.06.007" }
Bajuk-Bogdanović, D., Popa, A., Uskoković-Marković, S.,& Holclajtner-Antunović, I.. (2017). Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports. in Waste Management & Research Elsevier Science BV, Amsterdam., 92, 151-161. https://doi.org/10.1016/j.vibspec.2017.06.007
Bajuk-Bogdanović D, Popa A, Uskoković-Marković S, Holclajtner-Antunović I. Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports. in Waste Management & Research. 2017;92:151-161. doi:10.1016/j.vibspec.2017.06.007 .
Bajuk-Bogdanović, Danica, Popa, Alexandru, Uskoković-Marković, Snežana, Holclajtner-Antunović, Ivanka, "Vibrational study of interaction between 12-tungstophosphoric acid and microporous/mesoporous supports" in Waste Management & Research, 92 (2017):151-161, https://doi.org/10.1016/j.vibspec.2017.06.007 . .