Microcalorimetric and FTIR Study of the Adsorption of Carbon Dioxide on Alkali-Metal Exchanged FER Zeolites

被引：52

作者：

Bulanek, Roman ^{[1
]}

Frolich, Karel ^{[1
]}

Frydova, Eva ^{[1
]}

Cicmanec, Pavel ^{[1
]}

机构：

[1] Univ Pardubice, Dept Phys Chem, Fac Chem Technol, CZ-53210 Pardubice, Czech Republic

来源：

TOPICS IN CATALYSIS | 2010年 / 53卷 / 19-20期

关键词：

CO2; adsorption; Microcalorimetry; Adsorption heat; Alkali metal cation; FER; Zeolite; IR spectroscopy; Dual cationic sites; CANONICAL MONTE-CARLO; DUAL-CATION SITES; CO2; ADSORPTION; MOLECULAR SIMULATIONS; MONOXIDE ADSORPTION; ZSM-5; ZEOLITES; BINARY-MIXTURE; FAUJASITE; NA-ZSM-5; N-2;

D O I：

10.1007/s11244-010-9593-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Adsorption of CO2 on alkali-metal exchanged (Li+, Na+, K+) FER zeolites was investigated by means of microcalorimetry and FTIR spectroscopy. The adsorption enthalpies strongly depend on coverage for all investigated materials and they are also influenced by concentration of Al in the framework. Especially, samples of Na- and K-FER with lower Si/Al ratio (8.6) exhibited substantially larger initial interaction energy than samples with Si/Al 27.5. Differences in zero-coverage adsorption energy of zeolites with different cation concentration (Si/Al ratio) are 9 and 7.2 kJ/mol for Na- and K-FER zeolites respectively. This phenomenon is attributed to formation of bridged CO2 adsorption complexes formed between two cations, which are characterized by IR absorption band of nu(3) stretching vibration mode at 2370 and 2357 cm(-1) for Na- and K-FER respectively.

引用

页码：1349 / 1360

页数：12

共 41 条

[1]

[Anonymous], 2016, CARBON DIOXIDE CAPTU

[2] Computational and Fourier transform infrared spectroscopic studies on carbon monoxide adsorption on the zeolites Na-ZSM-5 and K-ZSM-5:: Evidence of dual-cation sites [J].

Arean, C. Otero ;

Delgado, M. Rodriguez ;

Frolich, K. ;

Bulanek, R. ;

Pulido, A. ;

Bibiloni, G. Fiol ;

Nachtigall, P. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (12) :4658-4666

[3] Carbon monoxide adsorption on low-silica zeolites-from single to dual and to multiple cation sites [J].

Arean, C. Otero ;

Delgado, M. Rodriguez ;

Bauca, C. Lopez ;

Vrbka, L. ;

Nachtigall, P. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (33) :4657-4661

[4] ZEOLITIC CARBON DIOXIDE - ENERGETICS AND EQUILIBRIA IN RELATION TO EXCHANGEABLE CATIONS IN FAUJASITE [J].

BARRER, RM ;

GIBBONS, RM .

TRANSACTIONS OF THE FARADAY SOCIETY, 1965, 61 (509P) :948-&

[5] Vibrational and thermodynamic study of the adsorption of carbon dioxide on the zeolite Na-ZSM-5 [J].

Bonelli, B ;

Onida, B ;

Fubini, B ;

Areán, CO ;

Garrone, E .

LANGMUIR, 2000, 16 (11) :4976-4983

[6] Experimental and quantum chemical studies on the adsorption of carbon dioxide on alkali-metal-exchanged ZSM-5 zeolites [J].

Bonelli, B ;

Civalleri, B ;

Fubini, B ;

Ugliengo, P ;

Areán, CO ;

Garrone, E .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (47) :10978-10988

[7]

Bourrelly S, 2005, STUD SURF SCI CATAL, V158, P1121

[8]

Bulánek R, 2008, STUD SURF SCI CATAL, V174, P869

[9]

Bulanek R, 2008, STUD SURF SCI CATAL, V174, P893

[10] Calorimetric heats of adsorption and adsorption isotherms .2. O-2, N-2, Ar, CO2, CH4, C2H6, and SF6 on NaX, H-ZSM-5, and Na-ZSM-5 zeolites [J].

Dunne, JA ;

Rao, M ;

Sircar, S ;

Gorte, RJ ;

Myers, AL .

LANGMUIR, 1996, 12 (24) :5896-5904

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