Characterization of the acid-base properties of oxide surfaces by 13C CP/MAS NMR using adsorption of nitromethane

被引：18

作者：

Lima, E ^{[1
]}

de Ménorval, LC ^{[1
]}

Tichit, D ^{[1
]}

Laspéras, M ^{[1
]}

Graffin, P ^{[1
]}

Fajula, F ^{[1
]}

机构：

[1] ENSCM, CNRS, LAb Mat Catalyt & Catalyse Chim Organ, F-34296 Montpellier 5, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 17期

关键词：

D O I：

10.1021/jp0202800

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Adsorption of nitromethane on oxide surfaces was monitored using C-13 CP/MAS NMR. Stabilization of the aci-anion formed by reaction of nitromethane on acid-base pairs was apparent. A linear relationship between the C-13 NMR isotropic chemical shift of the methylene group of the adsorbed aci-anion of nitromethane and the heat of adsorption Of CO2 measured by microcalorimetry was established. The results suggest that nitromethane constitutes an accurate and effective NMR probe for monitoring the basicity of oxide surfaces.

引用

页码：4070 / 4073

页数：4

共 25 条

[1] Comparative ab initio study of the chemical reactivity of nitromethane adsorbed on basic oxides: MgO and CaO(100) [J].

Allouche, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (05) :1820-1826

[2] H-1 MAGIC-ANGLE-SPINNING NMR-STUDIES OF THE ADSORPTION OF ALCOHOLS ON MOLECULAR-SIEVE CATALYSTS [J].

ANDERSON, MW ;

BARRIE, PJ ;

KLINOWSKI, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (01) :235-239

[3] INFRARED SPECTROSCOPIC INVESTIGATION OF ZEOLITES AND ADSORBED MOLECULES .4. ACETONITRILE [J].

ANGELL, CL ;

HOWELL, MV .

JOURNAL OF PHYSICAL CHEMISTRY, 1969, 73 (08) :2551-&

[4] CONJUGATE ACID-BASE PAIRS IN ZEOLITES [J].

BARTHOMEUF, D .

JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (01) :42-45

[5] ADSORPTION OF ACETONITRILE ON CERIUM OXIDE - AN INFRARED SPECTROSCOPIC STUDY ACCORDING TO THE REDUCTION STATE OF THE OXIDE [J].

BINET, C ;

JADI, A ;

LAVALLEY, JC .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1992, 89 (01) :31-45

[6]

CAVANI F, 1991, CATAL TODAY, V11, P2

[7] DETERMINATION OF BASE PROPERTIES OF HYDROTALCITES - CONDENSATION OF BENZALDEHYDE WITH ETHYL ACETOACETATE [J].

CORMA, A ;

FORNES, V ;

MARTINARANDA, RM ;

REY, F .

JOURNAL OF CATALYSIS, 1992, 134 (01) :58-65

[8] Structural requirements and reaction pathways in condensation reactions of alcohols an MgyAlOx catalysts [J].

Di Cosimo, JI ;

Apesteguía, CR ;

Ginés, MJL ;

Iglesia, E .

JOURNAL OF CATALYSIS, 2000, 190 (02) :261-275

[9]

ENGELKE R, 1986, J CHEM PHYS, P84

[10] ZEOLITE BASICITY CHARACTERIZED BY PYRROLE CHEMISORPTION - AN INFRARED STUDY [J].

HUANG, MM ;

KALIAGUINE, S .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1992, 88 (05) :751-758

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