Structural and Catalytic Properties of the Alkali Metal Ion-Exchanged Y-Zeolites by 29Si and 27Al Solid-State NMR and FT-IR Spectroscopy

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A series of cation exchanged Y-zeolites were prepared by exchanging cations with various alkali (M+, M= Li, Na, K, Cs) metals. The structural and catalytic properties of the alkali metal exchanged Y-zeolites have been investigated by a number of analytical techniques. Comparative elemental analyses were determined by an Energy Dispersive Spectroscopy X-ray (EDS), X-ray Photoelectron Spectroscopy (XPS), Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) and X-ray Fluorescence (XRF) before and after cation substitution. The framework and non-framework Al coordination and the Si/Al ratios of the Y-zeolites were investigated by MAS Solid-State Nuclear Magnetic Resonance (NMR) spectroscopy. The Al NMR spectra were characterized by two 27Al resonance signals at 12 and 59 ppm, indicating the presence of the non-framework and framework Al respectively. The intensities of these resonances were used to monitor the amount of the framework and non-framework Al species in the series of exchanged zeolites. The 29Si NMR spectra were characterized by four resonance signals at -79, -84, -90, and -95 ppm. Changing the alkali metal cations in the exchanged Y-zeolites significantly altered the extent of the octahedral/tetrahedral coordination and the Si/Al ratio. The Fourier Transform Infrared spectra of the CO2 adsorbed on to the exchanged Y-zeolites showed a low frequency shift, as the atomic number of the exchanged alkali metal increased. In addition, the catalytic activity of these samples for NOx reduction were tested in combination with a non-thermal plasma technique and interpreted based on the above structural and spectroscopic information.

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Periodical:

Key Engineering Materials (Volumes 277-279)

Edited by:

Kwang Hwa Chung, Yong Hyeon Shin, Sue-Nie Park, Hyun Sook Cho, Soon-Ae Yoo, Byung Joo Min, Hyo-Suk Lim and Kyung Hwa Yoo

Pages:

708-719

Citation:

C. S. Lee et al., "Structural and Catalytic Properties of the Alkali Metal Ion-Exchanged Y-Zeolites by 29Si and 27Al Solid-State NMR and FT-IR Spectroscopy ", Key Engineering Materials, Vols. 277-279, pp. 708-719, 2005

Online since:

January 2005

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$38.00

[1] Hong, S. S.; Park, J. W.; Jung, D. Y.; Park, D. W.; Cho, K. M.; Oh, K. J. J. KAPRA 1998, 14, 25-33.

[2] Splenger, J. D.; Brauer, M.; Koutrakis, P. Environ. Sci. Technol. 1990, 24, 946.

[3] Kim, N. C. J. KAPRA 1997, 13, 91-98.

[4] Ciambilli, P.; Corbo, P.; Migliardini, F. Catal. Today 2000, 59, 279.

[5] Blanco, J.; Odenbrand, C. U. I.; Avila, P.; Knapp, C. Catal. Today 1998, 45, 103.

[6] Burch, R.; Ottery, D. Appl. Catal. B: Environ. 1997, 13, 105-111.

[7] Mahzoul, H.; Brilhac, J. F.; Gilot, P. Appl. Catal. B: Environ. 1999, 20, 47.

[8] Nakatsuji, T.; Yasukawa, R.; Tabata, K.; Ueda, K.; Niwa, M. Appl. Catal. B: Environ. 1999, 21, 121.

[9] Saracco, G.; Badini, C.; Russo, N.; Speccihia, V. Appl. Catal. B: Environ. 1999, 21, 233.

[10] Hodjati, S.; Petit, C.; Pitchon, V.; Kienne, A. Appl. Catal. B: Environ. 2001, 30, 247-257.

[11] Koebel, M.; Elsener, M.; Kleeman, M. Catal. Today 2000, 59, 335.

[12] Broer, S.; Hammer, T. Appl. Catal. B: Environ. 2000, 28, 101.

[13] Torre-Abreu, C.; Henriques, C.; Ribeiro, F. R.; Delahay, G.; Ribeiro, M. F. Catal. Today 1999, 54, 407-418.

[14] Hoard, J. W. Societyof Automotive Engineers 2001, 01, 185.

[15] Balmer, M. L.; Fisher, G. B.; Hoard, J. W. Society of Automotive Engineers 1998, SP, 1395.

[16] Roland, U.; Holzer, F.; Kopinke, F. D. Catal. Today 2002, 73, 315-323.

[17] Isogai, K. Japanese Patent Hei 6-106125, April 19, (1994).

[18] Wandel, J. S.; Hoschele, J.; Staneff, T. German Patent DE 19510804A1, Mar. 24, (1995).

[19] Yamamoto, T. US Patent 5, 609, 736, May 5, (1998).

[20] Hoard, J. US Patent 5, 746, 984, May 5, (1998).

[21] Kieser, J.; Klein, M.; Lins, F.; Seebock, R. Michael, R. German Patent DE 4416676A1, May 11, (1994).

[22] Siemens AG, German Patent DE 9407861U1, Nov. 30, (1995).

[23] Raybone, D.; Bayliss, K.H.; Hall, S.I. UK Patent GB 2274412, Dec. 14, (1993).

[24] Balmer, M. L.; Tonkyn, R.; Yoon, S.; Kolwaite, A.; Barlow, S. Maupin G. Hoard, J. SAE 1999-01-3640.

DOI: https://doi.org/10.4271/1999-01-3640

[25] Gang, L.; Anderson, B. G.; Grondelle, J. V.; Van Scanten, R. A. Catal. Today 2000, 61, 179-185.

[26] Lampert, J. K. SAE 2000-01-2962.

[27] Balmer, M. L.; Tonkyn, R.; Yoon, S.; Kolwaite, A.; Barlow, S.; Maupin, G.; Hoard, J. SAE 1999-01-3640.

DOI: https://doi.org/10.4271/1999-01-3640

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